1918] 
BURT—THELEPHORACEAE OF NORTH AMERICA. X 315 
preciably darker than adjacent tissue; spores hyaline, even, 
3—4X 11-24 p. 
Fructifieations 14-3 em. in diameter and laterally confluent, 
or with reflexed part 1-21 cm. long, up to 4 сш.., and more, 
broad by lateral confluence. 
On dead twigs, prostrate limbs, and at base of trees of 
frondose species. South Carolina, West Indies, Mexico, and 
South America to Paraguay and Chile. September to May. 
Common. 
Fully developed specimens of H. Sallet may be recognized 
by their thin, papery pileus which may be folded without 
breaking, which is a rich Argus-brown both on the upper side 
and hymenium, and concentrically suleate, somewhat zonate, 
and shining on the upper side also. Collections of young 
Specimens of this species when first found were referred by 
early authors to H. tenuissima, a Ceylon species, of which 
good material is now available for comparison in the collec- 
tion from Ceylon distributed in Sydow, Fungi Exotici Exs., 
318, and in Elmer, Philippine Island Plants, 9850, both of 
which I have compared with a portion of the type communi- 
eated by Sir David Prain through the kindness of Miss Wake- 
field. The true H. tenuissima has its upper surface clothed 
with coarse pubescence, as stated in the original description, 
and the fibers of this pubescence do not finally become decum- 
bent, radiately arranged, and the surface shining; the 
hymenium of H. tenuissima is somewhat radiately rugose and 
between Isabella-eolor and JDresden-brown — not antique 
brown. 
Specimens examined: 
Exsieeati: Balansa, Pl. du Paraguay, 3916, under the name 
Hymenochaete elegantissima; Ravenel, Fungi Am., 718, 
under the name Hymenochaete badio-ferruginea; Rick, 
Fungi Austro-Am., 31, under the name Hymenochaete 
tenuissima; Smith, Central Am. Fungi, 149, under the name 
Hymenochaete tabacina. 
South Carolina: Seaboard, H. W. Ravenel, in Ravenel, Fungi 
Am., 718. 
Florida: C. G. Lloyd, 2071. 
