308 DECADES OF FUNGI. 
On the under side of a rotten log. Ohio. March. T. G. Lea, 
Esq. No. 41. 
Spreading for several inches, entirely resupinate membra- 
naceous partially separable from the matrix ; aculei somewhat 
fasciculate 1-2 lines long of a watery pale brown, very slender 
at the apex. hf il 
This species resembles Hydnum fernandesium, Mont. (H. — 
 membranaceum, var. stenodon, Mont. Prodr.) from which it 
differs in its shorter less crowded aculei. The margin too in 
the Juan Fernandez species is more distinct and the whole 
fungus more luxuriant. ; 
eo 88. Scleroderma Texense, n. sp. subglobosum squamis supra — 
liberis basi adnatis imbricatis vestitum mycelio infra medium — 
affixo anostomosante subfultum ; cellulis persistentibus spo- 
risque fuligineis. 
On the ground. Texas. Mr. Drummond. i. 
Subglobose rather depressed 11 inch in diameter at the 
base, about 1 inch high clothed with scales imbricating U 
wards from the base ofa pale olive brown externally, yel 
lowish within, and themselyes often covered with smaller 
scales or with furfuraceous particles; peridium hard rigid 
brown; cells persistent fuliginous with a slight olive tint; 
spores globose granulated. Mycelium springing from below 
the centre of the peridium, consisting of flat broad anasto- 
mosing floccose processes, resembling in their origin : 
appearance those of Hysterangium nephriticum, Berk. 
A very distinct species with cells more persistent 
usual in the genus. The scales also are more than 
developed, and are quite free above and distinct fro 
peridium. They are in fact the corky bark which is of som® 
thickness at the base and gradually becomes thinner to 
the apex as the peridium is protruded, in consequence © 
which it breaks up into scales. 
89. Didymium rugulosum, n. sp. gregarium peridio 
lari subtus laté umbilicato albo ruguloso ; stipite tenui cost” 
stramineo apice attenuato; capillitio parco albo ; sporis nigris 
sub lente fusco-purpureis. Columella nulla. 
