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MourRILL: POLYPORACEAE OF Norra AMERICA 329 
forms of this one which are really distinct. Favolus tessellatus 
Mont. (Ann. Sc. Nat. II. Bot. 20: 365. 1843), a good Brazilian 
species, was at first determined as F. draziliensis by Montagne and 
later separated because of its distinctly tessellated or checkered 
surface and regularly hexagonal pores. Cuban specimens called 
F. tessellatus are plainly F. brasiliensis, and are so determined at 
Kew by Montagne. 
Exsiccatae : Texas, Wright ; Louisiana, Hale, Langlois ; Cuba, 
Underwood & Earle; San Domingo, Wright; Brazil, Telinck. 
4. Hexagona Wilsonii sp. nov. 
Pileus flabelliform, applanate, 4-7 x 4-9 X 0.05-0.2 cm.; 
Surface radiate-striate, slightly hispid, partially tessellate, pure 
white, becoming cream-colored on drying; margin at maturity 
very thin, usually much lobed and fissured, beset with short, 
fugacious hairs: context fleshy-tough, membranous, white, parti- 
ally or wholly translucent ; tubes decurrent, white, 1-2 mm. long, 
4-6 angled, mouths 1.5 X 5 mm., smaller near the margin, edges 
very thin, splitting into irregular teeth ; spores ellipsoidal, smooth, 
hyaline, 5 X 104; stipe exactly lateral, equal, concolorous, hispid, 
0.5—I cm. long, 2.5~—5 mm. thick, often umbilicate above where it 
expands into the pileus. 
This elegant species was collected by Percy Wilson (xo. 377) 
in July, 1902, in the Luquillo mountains, Porto Rico, three miles 
from the coast. Decaying logs along a mountain stream were 
found covered with the fruit-bodies. 
5. Hexagona hispidula (B. & C.) 
Favolus hispidulus B. & C. Jour. Linn. Soc. Bot. 10: 321. 1868. 
Collected on trunks in Cuba by Wright. 
6. Hexagona princeps (B. & C.) 
Favolus princeps B. & C. Jour. Linn. Soc. Bot. 10: 321. 1868. 
Collected on dead wood in Cuba by Wright. The type is at 
ew. It is a large, handsome species. 
7. Hexagona fragilis sp. nov. 
Pileus flabelliform, convex, depressed behind, 2-3 X 2-4 X O.1— 
©.3 cm.; surface densely hispid, especially behind, faintly radiate- 
striate, pure white, becoming straw-colored in drying; margin 
