iy86.] 
THE NORTH AMERICAN HYPOCREACEiE. 
51 
tication could not be made out, though the surface of the club was finely 
punctate from the ostiola of the immersed perirhecia. Saccardo, in Syl- 
loge, gives the perithecia as 200—225 v-. obtusely papillate, and at length 
subprominent; asci cylindrical, 56 x 4 !’■ \ sporidia didymous, upper cell 
globose (4 lower cell subovate (4x3 hyaline. According to 
Tulasne & Broome, the club-shaped body is not the true stroma, but 
either Cla/caria ligida or Spathularia flavida, bearing the Hypocrea as a 
parasite. 
B. Stroma pulvinate^ disciform or effused. 
Sporidia 2-celled, easily separating in the middle, 
a. Stroma pulvinale, or discoid. 
1. Sporidia hyaline. I 
21. IIy^pocrea rufa (Pers.) 
Stromata gregarious, superficial, subhemispheric, elliptical, or irreg¬ 
ular in shape, mostly 1—1 cm. in diam., convex when fresh, contracted 
and rugose when dry, nearly brick-colored, punctulate by the slightly 
projecting ostiola, whitish within; asci cylindrical, nearly sessile, 
65—75 X 4—5 /^, with 8 one-seriate, didymous sporidia, composed of two 
subequal, hyaline, subglobose. or subcubical cells, each 3—4 p in diam. 
22. Hypocrea LENTA (Tode). Fr. S. M. II, p. 349. 
“Stromata gregarious, 2—3 lin., broad, thick, margin repand, disk 
nearly plain, partially free from the matrix; perithecia minute, globose, 
immersed, ostiola punctate, minute.” The only specimen of this species 
in our possession was sent from Oalifornia by Dr. Ilarkness and is on 
wood of hr (Herb. Hark. 3496). In this specimen, the stromata are i — i 
cm. in diam., nearly round, central portion adnate, leaving a narrow, 
free margin closely applied to the surface of the wood. The pale, 
globose, carnose-membranaceous, peripheric perithecia (200— 220 p in 
diam.) lie in a single layer, their ostiola very prominent and distinctly 
roughening the surface of the dirty-black stroma. Asci cylindrical, 
80—110 X 5-0 p, without paraphyses, containing 8 two-celled sporidia, 
each cell subcubical, or nearly globose and 4—44 P in diam., or slightly 
ovoid, 4—5 X 3—34 P. 
23. Hypocrea SciiWEiNiTzii, Fr. Flench. II, p. 60. [H. contorta, 
Schw. Syn. ]^. Am., 1224. X. A. F., 156.) 
Stroma as in the preceding species, except that the central adnate 
portion is smaller, and, in well-grown specimens, the margin is distinctly 
undulate and sublobate; perithecia immersed, globose, or subovate 
(150 /^-), scarcely roughening the surface, which is nearly punctate from 
the minute, slightly prominent ostiola; Asci cylindrical, 60—65 x 34 p., 
without paraphyses, containing 8 two-celled sporidia, composed of two 
globose, hyaline cells, 3—34 P in diam., and readily separable. On bark 
and wood. Common. 
(To be continued.) 
