> Flesh (and often the gills) yellow or yellowish. (1/5)

° Cap yellow, yellowish, olive, or yellowish brown. (1/2)

~ Cap covered with brownish-blackish scruffies, especially in the center. (1/2)

Tricholomopsis decora

~ Cap smooth, finely hairy, or without scruffies--or with yellowish or olive (not blackish brown) scruffies. (2/2)

Cap yellow; spores 5.5-6.5 µ long; cap margin not fringed; found east of the Rocky Mountains and in the Pacific Northwest. (1/4)

Tricholomopsis sulfureoides

Cap chrome yellow; spores 7-9 µ long; cap margin sometimes fringed; found in the Pacific Northwest. (2/4)

Tricholomopsis flavissima

Cap olive to olive brown, developing yellow shades; spores 4.5-6 µ long; cap margin not fringed; probably widely distributed. (3/4)

Callistosporium luteo-olivaceum

Cap olive to olive brown, developing yellow shades; spores longer than 6 µ; cap margin not fringed; found in the Pacific Northwest. (4/4)

Callistosporium graminicolor

° Cap reddish to purplish red. (2/2)

Cap surface smooth; gills with pinkish or purplish tones; growing on decayed wood of hardwoods. (1/2)

Callistosporium purpureomarginatum

Cap surface densely covered with reddish to purplish red scruffies over a yellowish base color; gills without pinkish or purplish tones; growing on decayed wood of conifers. (2/2)

Tricholomopsis rutilans

> Cap notably slimy or sticky, at least in normal conditions; stem dark and fuzzy/velvety, at least towards the base. (2/5)

° Cap whitish; growing in coastal British Columbia and Alaska. (1/2)

Flammulina rossica
at U Tennessee

° Not as above. (2/2)

~ Growing at high altitude in Mexico, from stumps of Senecio cineraroides, a woody plant. (1/2)

Flammulina mexicana
at U Tennessee

~ Not as above. (2/2)

Growing on Quaking Aspen and other poplars in the Rocky Mountains or westward; spores 6-7.5 µ long. (1/2)

Flammulina populicola

Growing on other hardwoods; widely distributed; spores 7-9 µ long. (2/2)

Flammulina velutipes

> Stem base attached to long, white mycelial cords; cap grayish brown to olive brown, brown, or nearly black, streaked-looking; stem pure white. (3/5)

Megacollybia

> Cap and stem prominently hairy or scaly. (4/5)

° Cap 1-3.5 cm, tawny brown to golden brown, densely hairy; gills white; odor and taste not distinctive or slightly mealy; spores 4-6 µ long; growing on dead wood of hardwoods; found in eastern North America. (1/4)

Crinipellis zonata

° Cap 1-2 cm, brown to rusty brown, densely hairy; gills white; odor and taste not distinctive; spores 8-9 µ long; growing on dead wood of conifers, including the lower branches of living trees; found in northern North America. (2/4)

Crinipellis campanella

° Cap to 1 cm, whitish to buff or tawny, with a darker center, densely hairy; gills white; odor and taste not distinctive; spores 7-10 µ long; growing on dead wood of conifers, especially spruce; found on the west coast. (3/4)

Crinipellis piceae
photo only

° Cap 5-8 cm, covered with dark brick red scruffies over a cinnamon ground color; gills whitish to yellowish; odor and taste unpleasant; spores 6-7 µ long; growing on dead wood or in sawdust; found east of the Rocky Mountains. (4/4)

Tricholomopsis formosa

> Not as above. (5/5)

° Young, fresh cap lavender (not violet or violet brown). (1/3)

Cap lavender to lilac, fading to tan; gills close or crowded, lavender; stem to 5 cm x 3 mm, lavender; odor and taste not distinctive; spores 3.5-4.5 x 2-3 µ, elliptical; growing scattered or in loose clusters on decayed wood of hardwoods or conifers, especially hemlock; widely distributed. (1/1)

Baeospora myriadophylla
photo only

° Young, fresh cap whitish. (2/3)

Cap whitish with a grayish center; gills close, whitish; odor and taste not distinctive; spores 4.5-6.5 x 3.5-5.5 µ, amyloid, nearly round; growing on decayed wood of hardwoods or conifers; probably widely distributed. (1/4)

Clitocybula abundans

Cap to 9 cm, buff to pale cinnamon, developing rusty spots; gills close or crowded, whitish to buff, often spotting rusty; stem to 10 cm x 13 mm, whitish, developing rusty spots; odor none or unpleasant, taste bitter; spores 5.5-6.5 x 5-5.5 µ, nearly round, round, or broadly elliptical, dextrinoid; growing gregariously on conifer wood; found in northeastern North America. (2/4)

Rhodocollybia maculata
( = Collybia maculata)

Cap to 5 cm, pale tan to buff or creamy; gills crowded, buff; stem to 12 cm x 6 mm, whitish; odor strong, taste not distinctive; spores 7-9 x 2.5-3.5 µ, elliptical, inamyloid; growing in clusters on decayed wood of hardwoods; found in northeastern North America. (3/4)

Marasmius cystidiosus

Cap to 4 cm, whitish at first, later flushed pinkish; gills crowded, white or pinkish, staining yellowish; stem to 4 cm x 5 mm, pale above, pinkish below; odor and taste not distinctive; spores 4-5 x 3-4 µ, broadly elliptical or nearly round; growing on decayed wood of conifers; found in the Pacific Northwest. (4/4)

Collybia bakerensis

° Young, fresh cap not lavender, not whitish. (3/3)

~ Taste markedly reminiscent of garlic or onions. (1/2)

Cap to 6 cm, dark reddish brown, fading to cinnamon, grooved; gills distant, buff or tan; stem to 4 cm x 5 mm, reddish brown; spores 8-8.5 x 3.5-4 µ, elliptical; growing gregariously or in clusters on wood chips; found in the northeastern United States. (1/2)

Gymnopus dysodes
at NYBG
( = Collybia dysodes)

Cap to 3 cm, reddish brown to yellowish brown, fading to yellowish; gills crowded, close, or nearly distant, whitish to buff; stem to 6 cm x 3 mm, buff above, dark brown below; spores 7-10 x 3-5 µ, elliptical; growing on twigs, in humus, on dead wood, from the bark of living trees, or in grass; found in northern North America and in California. (2/2)

Marasmius scorodonius
at Fungi of Poland

~ Taste not reminiscent of garlic or onions (but possibly bitter, alkaline, unpleasant, etc.). (2/2)

Page Two

References

Antonin, V., R. E. Halling & M. E. Noordeloos (1997). Generic concepts within the groups of Marasmius and Collybia sensu lato. Mycotaxon 63: 359-368.

Antonin, V. & J. Herink (1999). Notes on the variability of Gymnopus luxurians (Tricholomataceae). Czech Mycology 52: 41-49.

Arora, D. (1986). Mushrooms demystified: A comprehensive guide to the fleshy fungi. Berkeley: Ten Speed Press. 959 pp.

Barrasa, J. M, F. Esteve-Raventos & R. M. Dahncke (2006). Clitocybula canariensis (Tricholomataceae), a new brown-rot fungus from the Canary Islands (Spain). Fungal Diversity 22: 1-11.

Bigelow, H. E. (1973). The genus Clitocybula. Mycologia 65: 1101-1116.

Desjardin, D. E. (1985). New marasmioid fungi from California. Mycologia 77: 894-902.

Desjardin, D. E. & Petersen, R. H. (1989). Studies on Marasmius from eastern North America. II. New species. Mycotaxon 34: 71-92.

Desjardin, D. E. (1991). Studies on Marasmius from eastern North America. IV. Additions to Sect. Sicci. Mycologia 83: 30-39.

Desjardin, D. E., R. E. Halling & B. A. Perry (1997). Gymnopus villosipes--a common collybioid agaric from California. Mycotaxon 64: 141-147.

Desjardin, D. E., R. E. Halling & D. E. Hemmes (1999). Agaricales of the Hawaiian Islands. 5. The genera Rhodocollybia and Gymnopus. Mycologia 91: 166-176.

Desjardin, D. E. (2000). Strobilurus diminutivus: A new species from montane California, USA.. In: Associazione Micologica Bresadola, ed. Micologia 2000. Brescia, Italy: Grafica Sette, 137-142.

Fatto, R. M. & Bessette, A. E. (1996). A new species of Callistosporium. Mycotaxon 60: 125-128.

Gilliam, M. S. (1975). New North American species of Marasmius. Mycologia 67: 817-844.

Gilliam, M. S. (1976). The genus Marasmius in the northeastern United States and adjacent Canada. Mycotaxon 4: 1-144.

Gillman, L. S. & Miller, O. K. (1977). A study of the boreal, alpine, and arctic species of Melanoleuca. Mycologia 69: 927-951.

Halling, R. E. (1979). Notes on Collybia. I. Collybia alkalivirens. Mycotaxon 8: 453-458.

Halling, R. E. (1981). Notes on Collybia. II. Additional taxa that are green in alkaline solution. Mycologia 73: 634-642.

Halling, R. E. (1983). The genus Collybia (Agaricales) in the Northeastern United States and adjacent Canada. Germany: J. Cramer. 148 pp.

Halling, R. E. (1989). Notes on Collybia III. Three neotropical species of Subg. Rhodocollybia. Mycologia 81: 870-875.

Halling, R. E. (1996). Notes on Collybia V. Gymnopus section Levipedes in tropical South America, with comments on Collybia. Brittonia 48: 487-494.

Halling, R. E. (1997). A revision of Collyba s.l. in the Northeastern United States and adjacent Canada. Retrieved from the World Wide Web: http://www.nybg.org/bsci/res/col/colintro.html

Hughes, K. W. et al. (1999). Patterns of geographic speciation in the genus Flammulina based on sequences of the ribosomal ITS1-5.8S-ITS2 area. Mycologia 91: 978-986.

Hughes, K. W., R. H. Petersen, J. E. Johnson, J.-M. Moncalvo, R. Vilgalys, S. A. Redhead, T. Thomas & L. L. McGhee (2001). Infrageneric phylogeny of Collybia s. str. based on sequences of ribosomal ITS and LSU regions. Mycological Research 105: 164-172.

Hughes, K. W., R. H. Petersen, J. E. Johnson, J.-M. Moncalvo, R. Vilgalys, S. A. Redhead, T. Thomas & L. L. McGhee (2001). Infrageneric phylogeny of Collybia s. str. based on sequences of ribosomal ITS and LSU regions. Mycological Research 105: 164-172.

Kauffman, C.H. (1918). The gilled mushrooms (Agaricaceae) of Michigan and the Great Lakes region, Volumes I and II. New York: Dover. 924 pp. This book is available online here.

Komorowska, H. (2000). A new diagnostic character for the genus Collybia (Agaricales). Mycotaxon 75: 343-346.

Lennox, J. W. (1979). Collybioid genera in the Pacific Northwest. Mycotaxon 9: 117-231.

Mata, J. L., R. E. Halling & R. E. Petersen (2004). New species and mating system reports in Gymnopus (Agaricales) from Costa Rica. Fungal Diversity 16: 113-129.

Mata, J. L., R. E. Halling, K. W. Hughes & R. H. Petersen (2004). Rhodocollybia in neotropical montane forests. Mycological Progress 3: 337-351.

Mata, J. L., K. W. Hughes & R. H. Petersen (2006). An investigation of /omphalotaceae (Fungi: Euagarics) with emphasis on the genus Gymnopus. Sydowia 58: 191-289.

Methven, A. S. et al. (2000). Flammulina RFLP patterns identify species and show biogeographical patterns within species. Mycologia 92: 1064-1070.

Moser, M. (1983). Keys to Agarics and Boleti (Polyporales, Boletales, Agaricales, Russulales). Ed. Kibby, G. Transl. Plant, S. London: Roger Phillips. 535 pp.

Murphy, J. F. (1997). Intersterility groups in Collybia subnuda. Mycologia 89: 566-577.

Noordeloos, M. E. (1995). Genus Collybia. In: Bas, C., Th. W. Kuyper, M. E. Noordeloos & E. C. Vellinga (1995). Flora Agaricina Neerlandica. Volume 3. Rotterdam: A. A. Balkema. 106-123.

Redhead, S. A. (1982). The systematics of Callistosporium luteo-olivaceum. Sydowia, Ser. II 35: 223-235.

Redhead, S. A. (1987). The Xerulaceae (Basidiomycetes), a family with sarcodimitic tissues. Canadian Journal of Botany 65: 1551-1562.

Redhead, S. A., et al. (1987). The Xerula (Collybia, Oudesmansiella) radicata complex in Canada. Mycotaxon 30: 357-405.

Smith, A. H. (1960). Tricholomopsis (Agaricales) in the Western Hemisphere. Brittonia 12: 41-70.

Smith, A. H., Smith, H. V. & Weber, N. S. (1979). How to know the gilled mushrooms. Dubuque, Iowa: Wm. C. Brown. 334 pp.

Vilgalys, R. & O. K. Miller, Jr. (1982). Observations on sexuality in Collybia butyracea using a simplified crossing technique. Mycotaxon 14: 305-308.

Vilgalys, R. & Miller, O. K. Jr. (1983). Biological species in the Collybia dryophila group in North America. Mycologia 75: 707-722.

Vilgalys, R. & O. K. Miller, Jr. (1987). Morphological studies on the Collybia dryophila group in Europe. Transactions of the British Mycological Society 88: 461-472.

Vilgalys, R. & O. K. Miller, Jr. (1987). Mating relationships within the Collybia dryophila group in Europe. Transactions of the British Mycological Society 89: 295-300.

Vilgalys, R. (1991). Speciation and species concepts in the Collybia dryophila complex. Mycologia 83: 758-773.

Villarruel-Ordaz, J. L. & J. Cifuentes (1998). Primer registro de Collybia cookei (Tricholomataceae, Agaricales) en Mexico. Revista Mexicana de Micologia 14: 61-63.

Wells, V. L. & Kempton, P. E. (1971). Studies on the fleshy fungi of Alaska. V. The genus Strobilurus with notes on extralimital species. Mycologia 63: 370-379.

Wilson, A. W. & D. E. Desjardin (2005). Phylogenetic relationships in the gymnopoid and marasmioid fungi (Basidiomycetes, euagarics clade). Mycologia 97: 667-679.

Cite this page as:

Kuo, M. (2008, May).Collybioid mushrooms. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/collybioid_01.html