Murrill: Clitocybe in North America 
271 
Clitocybe robusta Peck, Ann. Rep. N. Y. State Mus. 49; 17. 
1897 
Described from the Catskill Mountains and found several times 
since in New York, growing among fallen leaves in woods. It 
has been reported from as far south as Maryland and as far west 
as Wisconsin. Clitocybe Candida Bres. has been confused with 
this species. 
Clitocybe setiseda (Schw.) Sacc. Syll. Fung. 5: 176. 1887 
Agaricus (Omplialia) setisediis Schw. Schr. Nat. Ges. Leipzig 
1 : 88. 1822. 
Agaricus (Clitocybe) setisedns Fries, Epicr. Myc. 73. 1836. 
Described from North Carolina, occurring among fallen leaves. 
I have seen no specimens. 
Clitocybe sinopica (Fries) P. Karst. Bidr. Finl. Nat. Falk 32: 
73- 1879 
Agaricus sinopicus Fries, Obs. Myc. 2 :■ 197. 1818. 
Described from Europe and frequent in woods and on burned 
ground in open places throughout most of temperate North 
America, having been found as far south as Tennessee and South 
Carolina and west to the Pacific coast. Clitocybe Arnoldi Boud. 
is only a variety of this species. Agaricus (Tricholonia) Sienna 
Peck also appears to be a large form of the same plant. Clitocybe 
subconcava Peck is very near. 
Clitocybe sinopicoides Peck, Bull. N. Y. State Mus. 157: 80. 
1912 
Described from the Adirondacks, occurring there among 
mosses in low, wet places. Peck says it differs from C. sinopica 
in its habitat, smaller size, and smaller spores, but all these differ- 
ences appear to me to be very slight. I have some small speci- 
mens collected in !Maine which Bresadola pronounced “ not 
sinopica/’ but which correspond to specimens at Albany deter- 
mined as C. sinopica. Bresadola’s idea of C. sinopica is a 
rather large plant with a much thicker stipe than is usually seen 
in our American specimens. 
