[Vor. 8 
374 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
We have a few species of tremellaceous fungi which are hydnoid 
in general aspect and belong in Heterochaete, a genus defined as 
follows: 
HETEROCHAETE Patouillard, a genus of resupinate tremellaceous 
fungi whose species have the general aspect of species of Odontia 
with cystidia clustered in the granules and with the basidia 
longitudinally cruciately septate. Our North American species 
are H. andina, H. gelatinosa, H. sublivida, H. microspora, and 
H. Shearii—none of which are known from north of District of 
Columbia. 
Heterochaete andina Patouillard & Lagerheim, Soc. Myc. Fr. 
Bul. 8: 120. pl. 11. f. 2. 1892; Sacc. Syll. Fung. 11: 144. 1895. 
Illustrations: Patouillard, loc. cit. 
Fruetifieations resupinate, effused, thin, adnate, drying car- 
tridge-buff, with margin whitish, the surface bearing numerous 
small, sharp-pointed granules; in structure 60-75 u thick, com- 
posed mostly of densely interwoven, hyaline hyphae of uneven 
outline, 215-3 u in diameter, sometimes with hyphae slightly 
colored next to substratum; granules cylindric, 1201-50 y high, 
40-60 v. in diameter, containing an axile cluster of slightly col- 
ored or sometimes hyaline, granule-incrusted hyphae 3 y in di- 
ameter which spread apart at the apex; basidia longitudinally 
septate, 12-16 x 6-9 v; spores hyaline, even, curved, 12-14 x 
4-7 v. 
On dead fallen branches of frondose species. Florida, Louisi- 
ana, and West Indies to Ecuador. November to April. 
Heterochaete andina has the aspect of a nearly white Odontia 
or resupinate Hydnum, from both of which it is distinguished 
by the longitudinally cruciately septate basidia. One of the 
Louisiana specimens cited below is from a gathering which was 
determined by Patouillard for Langlois as H. andina. 
Specimens examined: 
Florida: Cocoanut Grove, R. Thazter, 93 (in Mo. Bot. Gard. 
Herb., 43920, and in Farlow Herb.). 
Louisiana: Baton Rouge, Humphrey & Edgerton, comm. by C. 
J. Humphrey, 5710 (in Mo. Bot. Gard. Herb., 9982); St. 
Martinville, A. B. Langlois, 2855, 2988, and ah. 
