[Vor. 11 
34 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Fructifications up to 4 cm. long, 2 сіп. broad. 
On rotten wood. Porto Rico. July. 
This species is related to A. bicolor but is distinct from the 
latter and noteworthy by the very large, unsymmetrical, seta- 
like rays which stand out above the general level of the hymenium. 
The occasional cystidia are an additional separating character. 
Specimens examined: 
Porto Rico: Rio Piedras, J. A. Stevenson, 5579, type (in Mo. 
Bot. Gard. Herb., 13415). 
5. A. gracile Burt, n. sp. 
Type: in Mo. Bot. Gard. Herb. 
Fructifications effused, very thin, cobwebby, delicate, with 
the subiculum light drab and the hymenium pale olive-buff, 
not continuous but with the basidia in clusters; in structure 150 
а thick, with hyphae loosely arranged, hyaline, 2-214 y in diam- 
eter, and with colored, stellate organs with central body 6 » in 
diameter and very slender, unbranched rays up to 100-150 X 
3-314 y, often protruding beyond the hymenium up to 45 y; 
cystidia numerous, not incrusted, fusoid, 30 x 8 y; basidia 
15 X 6 y; spores hyaline, even, spherical, 6 џ in diameter. 
Fructifications 16-1 em. in diameter. 
On very rotten, frondose wood. Alabama. October. 
The small gray fructifications of A. gracile have the aspect of 
а delicate, cobwebby Hyphomycete rather than the more compact, 
spongy structure of other species of this genus. The long, slender 
rays of the stellate organs and the cystidia are also distinctive. 
Specimens examined: 
Alabama: Montgomery County, R. P. Burke, 409, type (їп 
Мо. Bot. Gard. Herb., 57202). 
6. A. ochrostroma Burt, n. sp. 
Type: in Mo. Bot. Gard. Herb., and Farlow Herb. probably. 
Fructification effused, dry, folky: ochraceous tawny, with 
surface becoming shallowly granular in fruiting; in structure 
200-300 д thick, composed of both hyaline, thin-walled, flaccid 
hyphae 2 y in diameter, and of some ochraceous, stiff, thick- 
walled hyphae 2 р in diameter, and of very numerous, densely 
