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Populus tremuloides . Michx
AMERICAN ASPEN
Quaking aspen

Life   Plantae   Dicotyledoneae   Salicaceae   Populus

Populus tremuloides, Whole tree
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, Whole tree

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Populus tremuloides, Whole tree
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, Whole tree
Populus tremuloides, Whole tree
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, Whole tree

Populus tremuloides, whole tree or vine - general
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, whole tree or vine - general
Populus tremuloides, bark - of a medium tree or large branch
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, bark - of a medium tree or large branch

Populus tremuloides, whole tree or vine - view up trunk
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, whole tree or vine - view up trunk
Populus tremuloides, leaf - showing orientation on twig
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, leaf - showing orientation on twig

Populus tremuloides, leaf - whole upper surface
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, leaf - whole upper surface
Populus tremuloides, leaf - margin of upper + lower surface
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, leaf - margin of upper + lower surface

Populus tremuloides, twig - orientation of petioles
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, twig - orientation of petioles
Populus tremuloides, leaf - whole upper surface
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, leaf - whole upper surface

Populus tremuloides, twig - orientation of petioles
© Copyright Steve Baskauf, 2002-2011 · 4
Populus tremuloides, twig - orientation of petioles
Populus tremuloides
© Copyright Mel Harte 2010 · 3
Populus tremuloides

Populus tremuloides
© Copyright Mel Harte 2010 · 3
Populus tremuloides
Populus tremuloides
© Copyright Mel Harte 2010 · 3
Populus tremuloides

Associates · map
FamilyScientific name @ source (records)
Agaricaceae  Phoma populi @ 357416A (1); BPI (1); 357416B (1)

Phoma urens @ BPI (5)
Alcyoniidae  Rhytisma @ BPI (1)
Aphididae  Aphis ( @ CSUC_TCN (1)

Chaitophorus neglectus @ CSUC_TCN (2); NCSU_ENT (25)

Chaitophorus nudus @ NCSU_ENT (9)

Chaitophorus populicola @ AMNH_PBI (39); CSUC_TCN (17); NCSU_ENT (59); CSCA_TCN (6)

Chaitophorus populifoliae @ AMNH_PBI (2); CSUC_TCN (14)

Chaitophorus populifolii @ AMNH_PBI (24); CSUC_TCN (1); NCSU_ENT (6); CSCA_TCN (4)

Chaitophorus stevensis @ NCSU_ENT (8)

Chaitophorus @ AMNH_PBI (6); CSCA_TCN (14)

Illinoia ( @ NCSU_ENT (2)

Macrosiphum ( @ AMNH_PBI (1)

Pachypappa pseudobyrsa @ AMNH_PBI (1)

Pachypappa sacculi @ AMNH_PBI (1); NCSU (83)

Pachypappa tremulae @ NCSU (35)

Pemphigus @ AMNH_PBI (4)

Phloeomyzus passerinii @ NCSU (19)

Pterocomma beulahense @ CSUC_TCN (9); NCSU (13)

Pterocomma bicolor @ NCSU (3)

Pterocomma populifoliae @ AMNH_PBI (6); NCSU (17)

Pterocomma pseudopopuleum @ NCSU (12)

Pterocomma smithiae @ CSUC_TCN (2); CSCA_TCN (2)

Pterocomma @ AMNH_PBI (5)

Tamalia coweni @ CSUC_TCN (1)
Apidae  Bombus melanopygus @ BBSL (1)
Aporpiaceae  Aporpium caryae @ BPI (5)
Atheliaceae  Amphinema byssoides @ BPI (1)

Athelia bombacina @ BPI (1)

Plicaturopsis crispa @ BPI (1)
Auriculariaceae  Auricularia auricula @ BPI (1)
Bertiaceae  Bertia moriformis @ BPI (1)
Boletaceae  Boletus versipellis @ BPI (1)
Botryobasidiaceae  Botryobasidium pruinatum @ BPI (1)

Botryobasidium vagum @ BPI (1)
Botryosphaeriaceae  Botryosphaeria @ BPI (1)

Dothiorella populnea @ BPI (1)

Guignardia populi @ BPI (1)

Macrophoma populi @ BPI (1)

Macrophoma tumefaciens @ BPI (1)

Phyllosticta brunnea @ BPI (1)

Phyllosticta @ BPI (1)
Capnodiaceae  Capnodium salicinum @ BPI (2)
Ceratocystidaceae  Ceratocystis brevicollis @ BPI (2)

Ceratocystis fimbriata @ BPI (4)

Ceratocystis pluriannulata @ BPI (1)

Ceratocystis retusi @ BPI (1)
Cicadellidae  Chlorotettix ( @ AMNH_PBI (2)

Colladonus geminatus @ AMNH_PBI (7)

Colladonus montanus @ AMNH_PBI (2)

Eratoneura campora @ III (1)

Eratoneura carmini @ III (2)

Erythroneura rosa @ III (1)

Idiocerus ( @ AMNH_PBI (40); UCR_ENT (1); UKYL_TCN (183)

Kybos copula @ III (2)

Kybos gelbata @ III (3)

Kybos strangula @ III (1)

Macropsis aurifera @ AMNH_PBI (16)

Macropsis basalis @ AMNH_PBI (165)
Cicadidae  Okanagana bella @ AMNH_IZC (1)
Cladoniaceae  Pilophorus @ AMNH_PBI (1)
Coccinellidae  Adalia bipunctata @ I_LB (1)

Harmonia axyridis @ I_LB (4)
Coniophoraceae  Coniophora arida @ BPI (1)

Coniophora corrugis @ BPI (1)

Coniophora sistotremoides @ BPI (1)

Coniophora suffocata @ BPI (2)

Jaapia argillacea @ BPI (2)
Corticiaceae  Corticium confluens @ BPI (2)

Corticium galactinum @ BPI (3)

Corticium laeve @ BPI (2)

Corticium ochrofarctum @ BPI (2)

Corticium pezizoideum @ BPI (21)

Corticium polygonium @ BPI (6)

Corticium roseum @ BPI (4)

Corticium sulphureum @ BPI (2)

Corticium vellereum @ BPI (3)

Corticium @ BPI (2)

Cytidia salicina @ BPI (4)

Laeticorticium roseum @ BPI (4)

Laeticorticium simplicibasidium @ BPI (1)

Lindtneria lowei @ BPI (1)

Punctularia salicina @ BPI (1)

Punctularia strigosozonata @ BPI (3)
Cortinariaceae  Crepidotus mollis @ BPI (1)

Crepidotus versutus @ BPI (1)
Corynidae  Coryne sarcoides @ BPI (1)
Cucurbitariaceae  Cucurbitaria @ BPI (1)
Dacrymycetaceae  Calocera cornea @ BPI (2)
Davidiellaceae  Cladosporium herbarum @ 031138B (1)

Cladosporium lethiferum @ BPI (2)

Cladosporium ramulosum @ BPI (5)

Cladosporium subsessile @ BPI (17)
Dermateaceae  Belonium aggregatum @ BPI (2)

Chlorosplenium aeruginascens @ BPI (2)

Chlorosplenium aeruginosum @ BPI (3)

Gloeosporium tremulae @ BPI (3)

Gloeosporium tremuloides @ BPI (1)

Gloeosporium @ BPI (1)

Marssonina brunnea @ BPI (20)

Marssonina castagnei @ BPI (9)

Marssonina coloradensis @ BPI (6)

Marssonina curvata @ BPI (1)

Marssonina populi-nigrae @ 404096B (1)

Marssonina populi @ BPI (30); 404096A (1)

Marssonina rhabdospora @ BPI (7)

Marssonina stenospora @ BPI (1)

Marssonina @ BPI (3)

Mollisia cinerea @ BPI (1)

Mollisia melaleuca @ BPI (3)

Ocellaria aurea @ BPI (1)

Ocellaria ocellata @ BPI (2)

Pezicula eximia @ BPI (2)

Pezicula ocellata @ BPI (1)

Pezicula @ BPI (1)

Tapesia lividofusca @ BPI (2)

Tapesia @ BPI (1)

Trochila populorum @ BPI (4)
Diaporthaceae  Phomopsis @ BPI (1)
Diaspididae  Diaspidiotus aesculi @ CSCA_TCN (1)
Diatrypaceae  Cryptosphaeria populina @ BPI (15)

Diatrypella demetrioniana @ BPI (1)

Diatrypella demetrionis @ BPI (1)

Eutypa lata @ BPI (1)

Eutypa scabrosa @ BPI (1)

Eutypa sparsa @ BPI (2)

Eutypella grandis @ BPI (1)
Dothioraceae  Dothiora polyspora @ BPI (3)

Dothiora sphaeroides @ BPI (4)
Entolomataceae  Claudopus nidulans @ BPI (3)
Erysiphaceae  Erysiphe cichoracearum @ BPI (1)

Erysiphe @ BPI (1)

Oidium radiosum @ BPI (1)

Uncinula adunca @ BPI (3)

Uncinula salicis @ 554848A (1); 858040A (1); 858870A (1); 875892C (1); 554848B (1); BPI (77)
Exidiaceae  Eichleriella leveilliana @ BPI (1)

Eichleriella spinulosa @ BPI (1)

Exidia glandulosa @ BPI (7)

Exidia nucleata @ BPI (1)

Exidia @ BPI (1)
Fomitopsidaceae  Daedalea confragosa @ BPI (1)
Ganodermataceae  Ganoderma applanatum @ BPI (3)
Gnomoniaceae  Laestadia rimula @ BPI (1)

Linospora @ BPI (1)

Plagiostoma populi @ BPI (7)

Pleuroceras populi @ BPI (1)
Hapalopilaceae  Bjerkandera adusta @ BPI (1)
Helotiaceae  Bisporella citrina @ BPI (1)

Cenangium furfuraceum @ BPI (1)

Cenangium populinum @ BPI (1)

Cenangium populneum @ BPI (31)

Cenangium pruinosum @ BPI (1)

Cenangium singulare @ BPI (6)

Chlorociboria aeruginascens @ BPI (2)

Chlorociboria aeruginosa @ BPI (2)

Durella atrocyanea @ BPI (4)

Tympanis confusa @ BPI (1)

Tympanis conspersa @ BPI (6)

Tympanis spermatiospora @ BPI (15)
Hericiaceae  Hericium ramosum @ BPI (1)
Herpotrichiellaceae  Rhinocladiella anceps @ BPI (1)
Hyaloscyphaceae  Dasyscyphus flammeus @ BPI (1)

Dasyscyphus @ BPI (3)

Lachnum bicolor @ BPI (1)

Lachnum calyculiforme @ BPI (3)

Lachnum corticale @ BPI (2)

Lachnum niveum @ BPI (3)
Hydnaceae  Hydnum fuscoatrum @ BPI (2)

Hydnum stenodon @ BPI (1)

Hydnum stipatum @ BPI (1)

Hydnum udum @ BPI (2)
Hymenochaetaceae  Hymenochaete tabacina @ BPI (2)

Phellinus tremulae @ BPI (1)

Polystictus pargamenus @ BPI (4)

Polystictus pubescens @ BPI (1)

Polystictus velutinus @ BPI (1)
Hyphodermataceae  Cerocorticium confluens @ BPI (1)

Hyphoderma arizonicum @ BPI (1)

Hyphoderma budingtonii @ BPI (1)

Hyphoderma macedonicum @ BPI (1)

Hypochnicium analogum @ BPI (2)
Hyponectriaceae  Physalospora @ BPI (1)
Hysteriaceae  Hysterographium acerinum @ BPI (2)

Hysterographium elongatum @ BPI (2)

Hysterographium mori @ BPI (1)

Hysterographium rehmianum @ BPI (1)
Lachnocladiaceae  Scytinostroma protrusum @ BPI (1)

Vararia athabascensis @ BPI (1)

Vararia investiens @ BPI (1)
Lasiosphaeriaceae  Lasiosphaeria pezizula @ BPI (1)
Lophiostomataceae  Lophiostoma triseptatum @ BPI (2)
Lycoperdaceae  Lycoperdon pyriforme @ BPI (3)
Magnaporthaceae  Clasterosporium populi @ BPI (6)
Marasmiaceae  Armillaria mellea @ BPI (1)

Cyphellopsis anomala @ BPI (1)

Lachnella corticalis @ BPI (10)

Lachnella flammea @ BPI (3)

Lachnella populicola @ BPI (1)

Lachnella populina @ BPI (1)

Lachnella symphoricarpi @ BPI (1)

Marasmius epiphyllus @ BPI (1)

Marasmius subvenosus @ BPI (1)

Solenia stipitata @ BPI (1)
Melampsoraceae  Melampsora abietis-canadensis @ BPI (44)

Melampsora albertensis @ BPI (315)

Melampsora grossulariae @ BPI (2)

Melampsora laricis-populina @ BPI (1)

Melampsora medusae @ BPI (149)

Melampsora occidentalis @ BPI (4)

Melampsora populina @ 031138A (1); BPI (10)

Melampsora populnea @ BPI (1)

Melampsora ribesii-purpureae @ BPI (1)

Melampsora tremulae @ BPI (1)

Melampsora @ 858870B (1); 858040B (1); BPI (1)
Melanconidaceae  Melanconium hyalinum @ BPI (1)

Melogramma fuliginosa @ BPI (1)
Melanommataceae  Melanomma @ BPI (1)
Membracidae  Cyrtolobus acutus @ UDCC_TCN (2)

Telamona gibbera @ UDCC_TCN (1)
Meruliaceae  Merulius armeniacus @ BPI (1)

Merulius ceracellus @ BPI (1)

Merulius confluens @ BPI (1)

Merulius hirtellus @ BPI (1)

Merulius molluscus @ BPI (1)

Merulius pinastri @ BPI (1)

Merulius serpens @ BPI (1)

Merulius tremellosus @ BPI (1)

Mycoacia alboviride @ BPI (2)

Phlebia cinnabarina @ BPI (1)

Phlebia merismoides @ BPI (1)

Phlebia strigosozonata @ BPI (37)

Phlebia zonata @ BPI (2)
Miridae  Brooksetta @ AMNH_PBI (4)

Deraeocoris borealis @ AMNH_ENT (3)

Lopidea @ AMNH_ENT (1)

Neolygus hirticulus @ AMNH_ENT (1)

Orthotylus candidatus @ AMNH_PBI (9)

Orthotylus nyctalis @ AMNH_PBI (3)

Paraproba sallei @ CSUC_TCN (1)

Phyllopidea montana @ AMNH_PBI (3)

Phytocoris dumicola @ AMNH_PBI (2); AMNH_ENT (1)

Phytocoris eurekae @ AMNH_ENT (1)

Phytocoris hopi @ AMNH_ENT (2)

Phytocoris inops @ AMNH_ENT (1)

Pilophorus furvus @ AMNH_PBI (1)

Pilophorus neoclavatus @ AMNH_PBI (1)

Pilophorus vicarius @ AMNH_PBI (5)
Mycosphaerellaceae  Heterosporium epiphyllum @ BPI (2)

Hormodendrum cladosporioides @ BPI (1)

Mycosphaerella maculosa @ BPI (1)

Mycosphaerella punctiformis @ 609369A (1); 609369B (1)

Mycosphaerella vagans @ BPI (1)

Septoria musiva @ BPI (10)

Septoria populi @ BPI (3)
Mytilinidiaceae  Lophium schizosporum @ BPI (1)

Taeniolella scripta @ BPI (1)
Nectriaceae  Nectria cinnabarina @ BPI (2)

Nectria ditissima @ BPI (1)

Nectria episphaeria @ BPI (1)

Nectria galligena @ BPI (2)

Nectria @ BPI (1)
Noctuidae  Hypospila populina @ BPI (1)
Odontotremataceae  Odontotrema hemisphaericum @ BPI (2)

Odontotrema majusculum @ BPI (1)
Orbiliaceae  Dactylium sublutescens @ BPI (1)
Pandeidae  Amphinema tomentellum @ BPI (1)
Peniophoraceae  Peniophora albula @ BPI (1)

Peniophora allescheri @ BPI (6)

Peniophora argillacea @ BPI (1)

Peniophora byssoides @ BPI (2)

Peniophora cinerea @ BPI (1)

Peniophora cremea @ BPI (1)

Peniophora incarnata @ BPI (2)

Peniophora longispora @ BPI (5)

Peniophora mutata @ BPI (17)

Peniophora nivea @ BPI (1)

Peniophora pallidula @ BPI (3)

Peniophora piceina @ BPI (1)

Peniophora polygonia @ BPI (2)

Peniophora populnea @ BPI (1)

Peniophora pubera @ BPI (2)

Peniophora romellii @ BPI (1)

Peniophora rufa @ BPI (5)

Peniophora sulphurina @ BPI (1)

Peniophora tenuis @ BPI (1)

Peniophora velutina @ BPI (3)

Peniophora violaceolivida @ BPI (2)

Peniophora @ BPI (1)
Phacidiaceae  Phacidium tremulae @ BPI (1)
Phanerochaetaceae  Phanerochaete carnosa @ BPI (4)

Phanerochaete laevis @ BPI (1)

Phanerochaete sordida @ BPI (1)

Phanerochaete velutina @ BPI (2)
Plectosphaerellaceae  Verticillium candidum @ BPI (1)
Pleosporaceae  Epicoccum purpurascens @ BPI (1)
Pleurotaceae  Pleurotus ostreatus @ BPI (3)

Pleurotus @ BPI (1)
Polyporaceae  Coriolus subchartaceus @ BPI (2)

Daedaleopsis confragosa @ BPI (1)

Favolus alveolarius @ BPI (1)

Fomes applanatus @ BPI (6)

Fomes connatus @ BPI (1)

Fomes fomentarius @ BPI (8)

Fomes igniarius @ BPI (42)

Fomes pinicola @ BPI (2)

Fomes robustus @ BPI (1)

Fomes roseus @ BPI (2)

Fomes subroseus @ BPI (1)

Hirschioporus pargamenus @ BPI (3)

Lenzites betulina @ BPI (3)

Lenzites saepiaria @ BPI (7)

Lenzites trabea @ BPI (2)

Panus rudis @ BPI (1)

Panus stipticus @ BPI (1)

Polyporus adustus @ BPI (27)

Polyporus albellus @ BPI (5)

Polyporus alboluteus @ BPI (1)

Polyporus brumalis @ BPI (1)

Polyporus cinnabarinus @ BPI (6)

Polyporus crocatus @ BPI (1)

Polyporus cuticularis @ BPI (2)

Polyporus delectans @ BPI (1)

Polyporus dichrous @ BPI (3)

Polyporus dryophilus @ BPI (10)

Polyporus elegans @ BPI (1)

Polyporus fibrillosus @ BPI (1)

Polyporus fumosus @ BPI (4)

Polyporus hirsutus @ BPI (16)

Polyporus immitis @ BPI (1)

Polyporus pargamenus @ BPI (25)

Polyporus perplexus @ BPI (1)

Polyporus picipes @ BPI (7)

Polyporus planellus @ BPI (3)

Polyporus pubescens @ BPI (17)

Polyporus rheades @ BPI (3)

Polyporus rutilans @ BPI (1)

Polyporus semipileatus @ BPI (2)

Polyporus squamosus @ BPI (1)

Polyporus subchartaceus @ BPI (5)

Polyporus sulphureus @ BPI (1)

Polyporus tephroleucus @ BPI (3)

Polyporus tulipiferus @ BPI (4)

Polyporus varius @ BPI (1)

Polyporus velutinus @ BPI (1)

Polyporus versicolor @ BPI (5)

Polyporus vulpinus @ BPI (2)

Polyporus zonalis @ BPI (2)

Polyporus zonatus @ BPI (16)

Polyporus @ BPI (3)

Poria aneirina @ BPI (6)

Poria corticola @ BPI (10)

Poria crustulina @ BPI (1)

Poria eupora @ BPI (2)

Poria ferrea @ BPI (1)

Poria ferruginosa @ BPI (4)

Poria fulvescens @ BPI (2)

Poria laevigata @ BPI (1)

Poria medulla-panis @ BPI (3)

Poria nitida @ BPI (1)

Poria pannocincta @ BPI (3)

Poria pulchella @ BPI (7)

Poria purpurea @ BPI (1)

Poria radula @ BPI (2)

Poria reticulata @ BPI (1)

Poria rhodella @ BPI (2)

Poria sanguinolenta @ BPI (1)

Poria selecta @ BPI (1)

Poria similis @ BPI (4)

Poria spissa @ BPI (1)

Poria subacida @ BPI (3)

Poria tarda @ BPI (1)

Poria tenuis @ BPI (5)

Poria terrestris @ BPI (1)

Poria unita @ BPI (1)

Poria xantha @ BPI (3)

Trametes hispida @ BPI (5)

Trametes peckii @ BPI (2)

Trametes sepium @ BPI (3)

Trametes serialis @ BPI (5)

Trametes suaveolens @ BPI (4)

Trametes trogii @ BPI (7)
Pyronemataceae  Humaria scutellata @ BPI (1)
Rhytismataceae  Propolis faginea @ BPI (6)
Schizophyllaceae  Schizophyllum commune @ BPI (3)
Schizoporaceae  Hyphodontia aspera @ BPI (2)

Hyphodontia magnacystidiata @ BPI (1)
Sclerotiniaceae  Ciboria caucus @ BPI (4)

Ciborinia bifrons @ BPI (20)

Ciborinia confundens @ BPI (3)

Ciborinia whetzelii @ BPI (2)

Encoelia fascicularis @ BPI (9)

Myrioconium comitatum @ 399708B (1); 399706B (1); 399706A (1); 399707A (1); 399705A (1); 399713B (1); 399711A (1); 399710A (1); 399712A (1); 399710B (1); 399707B (1); 399705B (1); BPI (1); 399712B (1); 868353A (1); 399708A (1); 399713A (1); 399711B (1)

Sclerotinia bifrons @ BPI (17)

Sclerotinia confundens @ BPI (20)

Sclerotinia @ BPI (1)
Sebacinaceae  Sebacina adusta @ BPI (2)
Sistotremataceae  Sistotrema raduloides @ BPI (1)

Trechispora pallidoaurantiaca @ BPI (1)

Trechispora raduloides @ BPI (1)
Steccherinaceae  Irpex lacteus @ BPI (2)

Irpex sinuosus @ BPI (1)

Odontia ciliolata @ BPI (1)

Odontia fimbriata @ BPI (6)

Odontia fuscoatra @ BPI (1)

Odontia hydnoides @ BPI (2)

Odontia pruni @ BPI (6)

Odontia spathulata @ BPI (1)

Steccherinum ochraceum @ BPI (2)

Steccherinum oreophilum @ BPI (6)
Stereaceae  Gloeocystidiellum clavuligerum @ BPI (2)

Gloeocystidiellum convolvens @ BPI (1)

Gloeocystidiellum karstenii @ BPI (1)

Gloeocystidiellum lactescens @ BPI (2)

Gloeocystidiellum porosum @ BPI (2)

Gloeocystidiellum @ BPI (2)

Laxitextum bicolor @ BPI (1)

Stereum albobadium @ BPI (1)

Stereum fasciatum @ BPI (3)

Stereum fuscum @ BPI (5)

Stereum hirsutum @ BPI (2)

Stereum populneum @ BPI (1)

Stereum purpureum @ BPI (9)

Stereum rufescens @ BPI (1)

Stereum rufum @ BPI (56)

Stereum sanguinolentum @ BPI (1)
Stictidaceae  Cryptodiscus atrovirens @ BPI (1)

Cryptodiscus melaleucus @ BPI (1)

Schizoxylon bicolor @ BPI (1)

Stictis chrysopsis @ BPI (7)

Stictis davidsonii @ BPI (2)

Stictis mollis @ BPI (2)

Stictis schizoxyloides @ BPI (1)
Strophariaceae  Pholiota squarrosa @ BPI (3)

Pholiota @ BPI (4)
Taphrinaceae  Taphrina aurea @ BPI (2)

Taphrina johansonii @ BPI (34)

Taphrina populina @ BPI (1)

Taphrina rhizophora @ BPI (8)
Teichosporaceae  Teichospora patellarioides @ BPI (1)
Thelephoraceae  Pseudotomentella umbrina @ BPI (1)

Thelephora intybacea @ BPI (1)

Thelephora terrestris @ BPI (1)

Tomentella obscurata @ BPI (1)

Tomentella rubiginosa @ BPI (1)
Tingidae  Corythucha salicata @ AMNH_IZC (2)
Tremellaceae  Tremella mesenterica @ BPI (1)
Trichiaceae  Trichia alpina @ BPI (1)

Trichia contorta @ BPI (1)
Tricholomataceae  Helotium citrinum @ BPI (7)

Helotium populinum @ BPI (2)

Helotium virgultorum @ BPI (1)

Tricholoma imbricatum @ BPI (1)

Trogia crispa @ BPI (1)
Tuberaceae  Tuber rufum @ BPI (1)
Typhulaceae  Sclerotium bifrons @ 868353B (1); BPI (41)
Ulvaceae  Solenia anomala @ BPI (3)

Solenia candida @ BPI (1)

Solenia ochracea @ BPI (1)
Valsaceae  Cytospora chrysosperma @ BPI (33)

Cytospora nivea @ BPI (21)

Cytospora @ 363891A (1); 363891B (1); BPI (18)

Radulum casearium @ BPI (13)

Valsa ambiens @ BPI (1)

Valsa nivea @ 574814A (1); 574800A (1); 574813A (1); 574814B (1); BPI (65); 574800B (1); 574813B (1)

Valsa sordida @ BPI (4)

Valsa translucens @ BPI (1)

Valsa @ BPI (1)
Venturiaceae  Fusicladium radiosum @ BPI (41)

Fusicladium tremulae @ BPI (1)

Pollaccia radiosa @ 445551B (1); 445551A (1); BPI (5)
Xylariaceae  Daldinia asphalatum @ BPI (1)

Daldinia concentrica @ BPI (5)

Daldinia grandis @ BPI (1)

Daldinia occidentalis @ BPI (3)

Hypoxylon fuscellum @ BPI (1)

Hypoxylon investiens @ BPI (1)

Hypoxylon mammatum @ BPI (26)

Hypoxylon novemexicanum @ BPI (1)

Hypoxylon pruinatum @ BPI (12)

Hypoxylon rubiginosum @ BPI (3)

Hypoxylon serpens @ BPI (2)

Rosellinia parasitica @ BPI (1)

Rosellinia @ BPI (1)

Sphaeria mastoidea @ BPI (1)

Sphaeria populina @ BPI (2)

Sphaeria rostrata @ BPI (1)

Xylaria cornu-damae @ BPI (1)
_  Acrodictys excentrica @ BPI (1)

Acrodictys fuliginosa @ BPI (1)

Blitridium fenestratum @ BPI (6)

Caldesiella calcicola @ BPI (1)

Caldesiella ferruginosa @ BPI (4)

Ceraceomerulius albostramineus @ BPI (1)

Chromocrea gelatinosa @ BPI (1)

Conicomyces contortus @ BPI (1)

Coniophorella olivacea @ BPI (2)

Coniosporium subgranulosum @ BPI (1)

Cryptochaete polygonia @ BPI (2)

Cryptochaete rufa @ BPI (11)

Dermatella populina @ BPI (1)

Dimerosporium populi @ BPI (1)

Euscelidius variegatus @ AMNH_PBI (1)

Grandinia subochracea @ BPI (2)

Hirneolina kmetii @ BPI (2)

Hypochnus cinerascens @ BPI (1)

Hypochnus fumosus @ BPI (3)

Hypochnus isabellinus @ BPI (1)

Hypochnus rubiginosus @ BPI (1)

Hypochnus spongiosus @ BPI (3)

Hypochnus umbrinus @ BPI (1)

Karschia stygia @ BPI (1)

Leptothyrium tremulae @ BPI (1)

Melittosporiella pulchella @ BPI (1)

Myxosporium ellisii @ BPI (1)

Pellicularia isabellina @ BPI (2)

Phialea amenti @ BPI (1)

Phibalis fascicularis @ BPI (1)

Phibalis pruinosa @ BPI (1)

Platystomum alpinum @ BPI (1)

Pleurophomella spermatiospora @ BPI (2)

Porothelium fimbriatum @ BPI (3)

Rhinotrichum ramosissimum @ BPI (1)

Septogloeum rhopaloideum @ BPI (5)

Sporidesmium tabacinum @ BPI (1)

Stigmatea populi @ BPI (1)

Torula incrustans @ BPI (2)

Torula populina @ BPI (1)

Trichothecium sublutescens @ BPI (1)

Valsaria exasperans @ BPI (3)

Xyloma populinum @ BPI (1)

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FNA | Family List | FNA Vol. 7 | Salicaceae | Populus

8. Populus tremuloides Michaux, Fl. Bor. Amer. 2: 243. 1803.

Trembling or quaking aspen, tremble, álamo temblón

Populus aurea Tidestrom; P. × polygonifolia F. G. Bernard; P. tremula Linnaeus subsp. tremuloides (Michaux) Á. Löve & D. Löve; P. tremuloides var. aurea (Tidestrom) Daniels; P. tremuloides var. magnifica Victorin; P. tremuloides var. vancouveriana (Trelease) Sargent

Plants to 35 m, 10 dm diam.; moderately heterophyllous. Bark dark gray, shallowly furrowed only basally on large trees, (greenish or yellowish white to gray and smooth otherwise). Branchlets reddish brown, becoming grayish yellow by third year, round, 1.2-3.5(-5) mm diam., coarse or not, glabrous. Winter buds reddish brown, glabrous, (shiny), slightly resinous; terminal buds (2.5-) 4-6(-9) mm, (glabrous); flowering buds separated on branchlets or clustered distally, (4.5-)6-10(-11) mm. Leaves : petiole distally flattened at right angle to plane of blade, (0.7-)1-6 cm, about equaling blade length; blade somewhat circular to ovate, (1-)3-7(-12) × (0.5-) 3-7(-10.5) cm, w/l = ca. 1, base shallowly cuneate to subcordate, shouldered, basilaminar glands (0 or) 1 or 2, round, margins not translucent, not ciliate, apex acuminate to acute, abaxial surface whitish green, resin stains not obvious, (slightly glaucous), glabrous, adaxial dark green, glabrous; preformed blade margins subentire to finely crenate-serrate throughout, teeth (12-)18-30(-42) on each side, sinuses 0.1-1 mm deep, (surfaces glabrous or sparsely sericeous); neoformed blade margins finely crenate-serrate throughout, teeth (20-)25-40(-50) on each side, sinuses 0.1-1.3 mm deep. Catkins densely (20-)50-65(-130)-flowered, (1.7-)4-7(-12.5 in fruit) cm; floral bract apex deeply cut, ciliate. Pedicels 0.5-1.5(-2 in fruit) mm. Flowers: discs narrowly cup-shaped, obviously oblique, entire, 1.3-1.8(-3 in fruit) mm diam.; stamens 6-12; anthers truncate; ovary 2-carpelled; stigmas 2, filiform, basal lobes expanded, erect. Capsules narrowly ovoid, (2-) 2.5-4.5(-7) mm, glabrous, 2-valved. Seeds (3-)5-7(-9) per placenta. 2 n = 38, 57, 76.

Flowering Mar-Jun; fruiting May-Jul. Dry to wet, open to closed woodlands and forests, edges of meadows and prairies, talus-slopes and canyon-heads, sites of human disturbance, timber cuts, mine tailings, gravel pits, quarries, roadsides; 0-3000(-4000) m; St. Pierre and Miquelon; Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon; Alaska, Ariz., Calif., Colo., Conn., Del., Idaho, Ill., Ind., Iowa, Maine, Md., Mass., Mich., Minn., Mo., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Oreg., Pa., R.I., S.Dak., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.; Mexico (Baja California, Chihuahua, Coahuila, Nuevo León, Tamaulipas, south to Hidalgo and the state of Mexico).

Clonal aspen groves develop rapidly following fires and other disturbances and may quickly decay in their absence as infections are transmitted through the connecting root system. Populus tremuloides is the most widely distributed tree in North America, found throughout cold and cool-temperate regions from coast to coast and from within the Arctic Circle to the north rim of the Valley of Mexico. It ranges from sea level in the north and east to the north slopes of high mountains in the southernmost part of its range. The southerly locations, like that on Mt. Livermore in the Davis Mountains, Texas, the most southerly stand in the flora area, may be Pleistocene relicts. Groves are often occupied by single clones and show no sexual reproduction but persist and spread by root suckers. Clone formation commonly results also in striking differences in appearance and phenology of adjacent groves or blocks of trees (B. V. Barnes 1969). Some individuals display a particularly rich, yellow autumn coloration that makes them a standout among North American trees, particularly in the West, where this richness was the basis for segregation of P. tremuloides var. aurea . There do not appear to be consistent regional differences within the species that would justify recognition of subspecies or varieties (Barnes 1975). Instead, there is as much variation from clone to clone within a region as there is among regions.

Populus tremuloides hybridizes with both the native P. grandidentata ( P. × smithii B. Boivin) and the Eurasian P. alba ( P. × heimburgeri B. Boivin) in southeastern Canada and the northeastern United States (B. V. Barnes 1961; T. A. Spies and Barnes 1982). Populus × smithii occurs as far west as the Niobrara River valley, Nebraska, ca. 350 km west of the nearest present populations of P. grandidentata . Preformed leaves are more ovate than those of P. tremuloides and have larger teeth. Populus × heimburgeri has transiently tomentose twigs, buds, and abaxial leaf surfaces. Contrary to some published reports (E. Lepage 1961; T. C. Brayshaw 1965b; B. Boivin 1966b; F. G. Bernard 1968), P. tremuloides does not hybridize naturally with P. angustifolia , P. balsamifera , or P. deltoides . The correct identification of such specimens is discussed under each of the purported parents.

The closely related Eurasian aspen, Populus tremula Linnaeus, is sometimes cultivated in North America, particularly as a columnar staminate clone ('Erecta'). Its leaves are very similar in shape to those of P. tremuloides and usually have slightly larger teeth. Buds are often minutely hairy. Artificial hybrids between P. tremula and P. tremuloides, P. ×wettsteinii Hämet-Ahti, are sometimes grown for plantation forestry, particularly in the Great Lakes region.

Updated: 2020-10-26 14:08:50 gmt
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