Durand: Stupres IN NortTH AMERICAN Discomycetes 463 
Attached to decaying rhizomes of Stmlacina racemosa, buried 
in rich humus, Fall Creek, Ithaca, N. Y., May 13, 1901 (Herb. 
Cornell, no. 5945). 
The plants are usually aggregated, a half-dozen springing from 
a single rhizome. The sclerotia are so small as to be easily over- 
looked, and seem ridiculously small for so large a plant. 
The spores germinate readily in nutrient agar made up with a 
decoction of Silacina rootstocks. The spores do. not become 
septate at germination. One or two germ-tubes are produced 
which branch profusely but do not throw off conidia. Cultures on 
agar and on sterilized rootstocks produced the minute sclerotia in 
great numbers. 
This species resembles S. éuderosa (Hedw.) Fckl. very closely, 
but differs in the sclerotia, which in the latter are large and tuber- 
ous, in the method of germination of the spores and in the host 
plant. The latter species is said to grow always in connection 
with the rhizomes of Anemone nemorosa. 
CYATHICULA MARCHANTIAE (Sommf.) Sacc. Syll. Fung. 8: 307. 
1889 
Peziza marchantiae Sommf. Sup. Fl. Lap. 295. 1826. 
Ascomata solitary, turbinate, sessile or with a short, thick stem 
substance fleshy-waxy, thin, translucent, pallid-white usually with 
a pale lilac tint, o. 5-2 mm. in diameter; disk plane or saucer- 
Shaped, the margin ornamented with ciliate teeth composed of 
bundles of narrow cells. Excipulum parenchymatous, cells poly- 
gonal, 15-18  indiameter. Asciclavate-cylindrical, not conspic- 
uously narrowed below, apex rounded, not blue with iodine, 60— 
75 X 6-8; spores 8, 1—-2-seriate, hyaline, contiguous, smooth, 
vate-elliptical, 8-10 x 4, minutely 2-guttulate; paraphyses 
liform, flexuous, exceeding the asci. 
On living Marchantia polymorpha, Six-mile Creek, Ithaca, N. 
Y., November 3, 1901 (Herb. Cornell, no. 8 5¥3). 
The ascomata usually spring from the margin of the thallus, 
°r sometimes from the summits of the gametophores. One can- 
Not, of course, be certain that this is Sommerfelt’s species, but it 
Corresponds fully with the brief description given in Saccardo’s 
Sylloge. This in connection with the peculiar habitat renders it 
quite probable that ours is the form Sommerfelt had in mind. If 
this is true we have the interesting fact of the occurrence, in New 
