374 NORTH AMERICAN FLORA [VoLuME 9 
7-11 p: stipe compressed, isabelline, with a dense coat of minute brown fibrils, hollow, tough, 
enlarged and radicate at the base as in Gymnopus radicatus, 5 cm. long, 2-3 mm. thick. 
Type collected in clay on a wet, mossy bank at Cinchona, Jamaica, about 1500 m. elevation, 
December 25—-January 8, 1908-9, W. A. & Edna L. Murrill 632 (herb. N. Y. Bot. Gard.). 
DistRIBUTION: Known only from the type locality. 
DouBTFUL AND EXCLUDED SPECIES 
Agaricus (Gymnopus) leiopus Pers. Disp. Meth. Fung. 21. 1797. Simply reported from 
North Carolina by Schweinitz. 
Agaricus (Collybia) praeceps Berk. & Curt. Ann. Mag. Nat. Hist. IT]. 4: 285. 1859. 
Described from specimens collected in New England by Sprague, who sent notes and a sketch 
with them to Berkeley. The types at Kew are large, depressed when old, and very slightly 
striate, resembling G. dryophilus, although the stipe is rather long for this species. 
Agaricus (Collybia) semihaerens Berk. & Curt. Ann. Mag. Nat. Hist. ITT. 4: 286. 1859. 
Described from specimens collected by Wright on dead wood in Connecticut. Some of those 
sent to Fries appeared to me to belong rather to Pleurofus. The types at Kew are small and 
slender like Mycena or Marasmius, the pileus meastiring 5-8 mm. broad in a dried condition. 
Agaricus (Collybia) Spraguett Berk. & Curt. Ann. Mag. Nat. Hist. III. 4: 285. 1859. 
Described from specimens collected on rotten logs in New England by Sprague. I have seen 
one poor specimen in Fries’s herbarium at Upsala. 
Agaricus (Collybia) stereocephalus Berk. & Curt. Ann. Mag. Nat. Hist. ITI. 4: 285. 1859. 
Described from specimens collected among spruce needles in New England by Sprague. The 
types at Kew are in bad shape, but appear to belong to Melanoleuca. 
Agaricus (Gymnopus) trichopus of Schw. Schr. Nat. Ges. Leipzig 1: 82. 1822. Reported 
from North Carolina by Schweinitz and referred by most mycologists to Collybia butvracea. 
It is probably a form of G. dryophilus. 
Agaricus (Collybia) xanthopilus Mont. Syll. Crypt. 106. 1856. Described from speci- 
mens collected on rotten wood in fields near Columbus, Ohio. The types at Paris, which are 
in rather poor condition, seem near G. dryophilus. 
Collybia aquosa adnatifolia Peck, Bull. N. Y. State Mus. 2: 25. 1887. Peck states in his 
49th report that this variety is probably a Clitocybe. 
Collybia asema (Fries) P. Karst. Bidr. Finl. Nat. Folk 32: 145. 1879. Reported from 
North Carolina and Massachusetts, occurring in pine woods. Compare Agaricus leiopus Schw. 
Collybia brunnescens Peck, Bull. Torrey Club 33: 214. 1906. Described from specimens 
collected by Mrs. Hunt in California. The types at Albany prove to be Melanoleuca melaleuca. 
Collybia butyracea (Bull.) Quél. Champ. Jura Vosg. 58. 1872. Described from France 
and reported by the older mycologists as occurring in America from Canada to South Carolina 
and west to Ohio. Peck reports it common in groves of spruce and balsam at North Elba. 
Rea remarks that Lloyd’s photograph representing this species does not suggest C. butyracea 
to him. Dodge reports a form of G. dryophilus from Wisconsin which might be called C. 
butyracea. 
Collybia campanella Peck, Bull. N. Y. State Mus. 116: 19. 1907. Described from 
specimens collected on dead branches of arbor-vitae at Horicon, New York. This species 
belongs in Crinipellis. 
Collybia cirrata (Pers.) Quél. Champ. Jura Vosg. 60. 1872. (Agaricus cirrhatus Pers. Obs. 
Myc. 2:53. 1799.) Although this species is kept distinct from C. tuberosa by Bambeke, Ricken, 
and others, I must confess my inability to see the difference, either in the descriptions or in herbar- 
ium specimens. Persoon reduced his own species to varietal rank, and Molisch found that the 
mycelium of both was phosphorescent when the hymenophore was developing from the tuber, 
which latter is said by some to be ochraceous in C. cirrata and brownish-purple in C. tuberosa. 
I have found tubers on Lactaria turpis, the favorite host of C. tuberosa, colored purplish-brown 
like poplar buds, while tubers buried deep in soil rich in humus were much paler. 
Collybia clavus (L.) Quél. Champ. Jura Vosg. 63. 1872. Reported as occurring on mosses 
in North Carolina and Massachusetts. 
Collybia clusilis (Fries) P. Karst. Bidr. Finl. Nat. Folk 32: 164. 1879. Reported from 
New York by Peck and said by him to belong in the genus Omphalia. 
