1916] 
BURT—THELEPHORACEAE OF NORTH AMERICA, VII Si 
Grenada: Grand Etang, R. Thazter, comm. by W. G. Far- 
low, a (in Mo. Bot. Gard. Herb., 43912). 
12. 8. frustulosum (Berk. & Curtis) Patouillard, бос. Myc. 
Fr. Bul. 10:79. pl. 3. f. 4. 1894. 
Hymenochaete frustulosa Berk. & Curtis, Linn. Soc. Bot. 
Jour. 10:334. 1868; Басс. Syll. Fung. 6:601. 1888. 
Illustrations: Patouillard, loc. cit. 
Type: type and cotype in Kew Herb. and Curtis Herb. 
Fruetifieation resupinate, effused, coriaceous, dry, velutin- 
ous, honey-yellow to old gold, repeatedly divided into many 
narrow, sinuous, reticulate di- 
visions which are more dis- 
tinct towards the margin; in 
structure about 600-700» thick, 
3-layered, with next to the 
substratum a broad layer, up 
to 200» thick, with hyphae 
densely longitudinally ar- 
ranged, 2и in diameter, concol- j 
orous with the fructification, Fig. 9 
which ascend, without forming — , ee Ke 
pillars, as (2) the loosely ar- ing organs; n, septate colored or- 
ranged middle layer, whose hy- Saring a spore Чек m oper то ат 
phae pass into and form (3) 
the hymenial crust which is finally very dense and compact in 
fully developed specimens, about 200 thick, with hyphae 
concolorous, even, 1144-2» in diameter, branching towards 
the surface into flexuous branches, or paraphyses, about Тр 
in diameter, once or twice dichotomously branched and with 
tips curved or spirally coiled; probasidia borne laterally on 
the hyphae, hyaline, pyriform, 9 X 514, becoming elongated 
and septate as a few-celled, spore-bearing organ, or producing 
directly a sterigma bearing one spore; spores hyaline, even, 
cylindric, nearly straight, 13-17 x 4-би. 
Fruetifieations up to 10 em. long, 1-2 em. broad, less than 
1 mm. thick. 
22 
