494 ME. G. MASSEE—REDESCRIPTIONS OF 
on a white powdery layer on the bark of the matrix ; when young 
elongated like an Hysterium, margin incurved from opposite 
sides and concealing the disc, finally expanded, circular, concave ; 
dise pale grey, externally black, glabrous, 1-2 mm. diameter; 
substance of ascophore formed of slender interwoven hyphe, 
passing into a blackish grumous cortex ; asci cylindric-clavate, 
thick-walled, not blue with iodine, containing 4-6-8 spores; 
spores broadly elliptical or ovate, 3—5-7-septate, then fenestrate, 
slightly or not at all constricted at the primary transverse septa, 
hyaline at first, then becoming brown; 35-45 x 17-21 p when 
only four in an ascus, smaller in size when 6-8 in an ascus; 
paraphyses very slender, septate, sometimes branched. 
Blitrydium Taxodii, Sace. Syll. viii. n. 3306. 
Hysterium hiascens, Berk. & Curt. in Grevillea, iv. (1875) 
p. 11. 
Blitrydium hiascens, Sace. in Michelia, i. 417; Syll. Fung. 
viii. n. 3295. 
On Taxodium distichum (= T. mucronatum), on Quercus bicolor, 
and on Celtis occidentalis: Upper Carolina, U.S.A. (Ravenel, 
nn. 633, 5833, 3416, and 3321; on ticket of last no. is * sent 
to Prof. Ed. Tuckerman as a lichen; he says—a fungus"). On 
bark, Italy (Saccardo). 
Looking like a species of Hysterium when young. Berkeley’s 
spore measurements are too large. I have not seen spores more 
than 45, long, even when large and only four in an ascus. 
There is an abundance of material of both Peziza Taxodii, Berk., 
and of Hysterium hiascens, Berk. & Curt., and the two are 
absolutely identical in every respect. 
Peziza (Š Excatium) russa, Berk. $ Broome, in Journ. Linn. 
Soc. (Bot.) vol. xiv. (1875) p. 106. (PJ. XVIII. fig. 19.) 
Fasciculate or subsolitary, closed by the incurved margin at 
first, then expanding and often somewhat wavy, bright rust- 
colour, or sometimes reddish-brown, externally rather coarsely 
furfuraceous, due to the presence of crowded, short, moniliform 
strings of brown cells, 5-6 u diameter, which spring from the 
cortical cells, and are most abundant near the margin, about 
1 mm. across; hypothecium and excipulum formed of coloured 
interwoven hypha, which pass into a small-celled, brown, paren- 
chymatous cortex ; asci narrowly cylindric-clavate, apex rounded, 
not coloured blue with iodine, 45-50 x 5 p; spores 8, irregularly 
