100 NortH AMERICAN SORDARIACEAE 
nent, about one-half the length of the spore, covered by a hyaline 
envelope which swells greatly in water. ON 12. f. 15-18. 
Distinctive character: The prominent beak and pseudostroma. 
Cultivated specimen: On horse dung, Tucson, Arizona, Jan. 
1900 (Tyler) ; on horse dung, Tucson, Ariz., Sept. 1900. 
IV. DELITSCHIA Auerswald, Hedwigia, 5: 48. 1866; Raben- 
horst, Krypt.-Flora, 1°: 179. 1887; Saccardo, Syll. Fung. 
732. 1882; Cohn’s Krypt.-Flora Schlesien, 3°: 289. 
Perithecia superficial or sunken, thin and membranaceous to 
thick and coriaceous, dark brown to black and opaque, hairy or 
smooth. Asci 8- to 16-spored with an internal membrane which 
generally ruptures on a plainly marked constriction just below 
the apex. Spores 2-celled, dark brown and opaque, usually with 
a gelatinous envelope. 
; Key to the Species 
Asci 8-spored. 
وی جم Spores‏ 
ھی مس 
Spores deeply constricted. Id 
res with broad shallow constriction. 2. D. eccentrica. 
m biseriate. 3. D. leporina. 
Spores —€— ae septate. 
Spores with hyaline envelope. 
es papilliform or short cylindrical. 
Spores small, 5-6 u X 10-11 ۰ 4. D. Marshalii. 
Spores large, 13-16 u. X 42-54 u. 5. D. furfuracea. 
Beak long cylindrical or tuberculiform. 
Spores large, 25-27 u X 54-72 ۰ 6. D. Winteri. 
res comparatively small, 13-16 u X 27-30u. 7. D. vulgaris. 
Spores without hyaline envelope but having a hyaline "p 
8. D. apiculata. 
Asci 16-spored. 9. D. polyspora, 
I. DEeLITSCHIA DIDYMA Awd. Hedwigia, 5: 49. 1866; Hed- 
wigia, 7: 72. pl. 1. f. 9. 1868 
Delitschia Auerswaldii Fuckel, Symb. Mycol. p. 241. 1869; 
Sace. Syll. Fung. 1: 732. 1882; Rabh. Krypt.-Flora, 1! : 172. 
1882; Cohn’s Krypt.-Flora v. Schlesien, 37: 290. 1894. 
Perithecia sunken, scattered, with papilliform or long cylindrical 
curved or twisted black beak which may be uniformly covered 
with short brown septate hairs or perfectly smooth, black and bare, 
400 2-700 p in diameter, subglobose to pyriform, thin membrana- 
ceous, dark brown to black and opaque. 
mm 
