492. 
TTHELEPHORA SUBUNDULATA. 
Pileus thin, subcoriaceous, centrally depressed, plicate-undulate 
onthe margin, subcinereous or grayish-brown; hymenium slightly 
uneven, paler than the pileus, grayish or grayish-yellow; stem 
firm, solid, rarely branched, colored like the pileus; spores broadly 
elliptical, .0003 in. long, .0002 broad. 
Pileus about 6 lines broad; stem 8 to 10 lines long, scarcely I 
line thick. 
Ground. Delaware. July. A. Commons. 
This species appears to be related to, but much smaller than 
T. undulata. It differs from it in having a glabrous hymenium 
and larger spores. The stem is not polished, but tothe naked eye 
appears to be priunose-pubescent. Sometimes the margin of the 
pileus is more than wavy, its folds overlapping. 
SECOTIUM DECIPIENS. 
Peridium subglobose or depressed globose, its surface rupturing 
into rather broad, loose or appressed scales, cream-colored, the in- 
ferior part at first closely pressed to the stem and sometimes sep- 
arating from the upper part and forming a kind of annulus, some- 
times splitting longitudinally and gradually falling away, leaving 
the upper part in the form of a pileus; the glebe lamelliform, but 
variously united and anastomosing, forming irregular and some- 
what labyrinthiform cells, free from the percurrent stem, almost or 
quite black; stem stout, commonly tapering upward, abruptly nar- 
rowed as it enters the peridium, firm, solid, externally colored like 
the peridium, internally tinged with yellow or rhubarb color; 
spores globose or subglobose, even, black or brownish-black, 
0002 to .00028 in. long. 
Peridium 1 to 4 in. broad; stem 3 to 6 in. long, 1 in. or more 
thick at the base, 5 to 10 lines where it enters the peridium. 
Streets and lawns. Pasadena, California. April. McClatchie. 
The copious blackish spores are an unusual feature in the genus 
Secotium. The lamelliform septa sometimes rupture in such a 
way as to form coarse aculeiform processes as in the*genus Poly- 
plocium, and thus the plant might easily be referred to that genus. 
But [ find no filamentous capillitium in the specimens before me, 
and no evidence of a volva, and have therefore referred them to 
the genus Secotium, between which and Polyplocium this species 
forms a connecting link, 
er 
