330 FUNGUS-FLOEA. 



Lachnum niveum, Karst., Myc. Penn., i. p. 168; Eehm, 

 Krypt.-rioia, Disc, p. 879. 



Trichopeziza nivea, Fokl., Symb. Myc, p. 296. 



On twigs, branches, wood, &o. 



From the standpoint of species at the present day, it is 

 absolutely impossible to say exactly which of the numerous 

 minute white species Hedwig's Octospora nivea represents ; 

 and under the circumstances I have accepted as this 

 species the form most generally accepted by mycologists, as 

 indicated by the synonyms given above. This form does 

 not accord with the species as understood by Phillips, Brit. 

 Disc, p. 245 ; differing in the broad, lanceolate paraphyses. 



Differs from D. virginea in the large cells at the margin ot 

 the excipulum and the septate hairs, and from D. ciliaris in 

 the slender stem and lanceolate paraphyses. 



Dasyscypha acutipila. Sacc, Syll., viii. n. 1860. 



Gregarious or scattered, shortly stipitate, globose and 

 closed when young, then becoming quite plane, up to 1 mm. 

 across ; entirely white, or the disc sometimes tinged yellow ; 

 externally minutely downj'; margin pilose, hairs thick- 

 walled, smooth, septate, gradually tapering into a long, 

 acuminate point, 50-70 X 4 /t; cortex composed of small, 

 elongated cells ; asci clavate, apex narrowed, 8-spored ; 

 spores 2-seriate, hyaline, smooth, continuous, narrowly 

 fusiform, 9-14 x 1-1 • 5 /a ; paraphyses lanceolate, tips acute, 

 usually septate, 4 /x broad at widest part. 



Peziza acutipila, Karsten, Mon. Pez., p. 195. 



Lachnella acutipila, Phil., Brit. Disc, p. 262. 



On Phragmites communis and other grasses. 



Specimen in Karst., Fung. Fenn., n. 662, examined. 



Distinguished by the linear-fusiform spores, and the short, 

 acuminate, marginal hairs. 



Dasyscypha Soppittii. Mass. (fig. 12, p. 156.) 

 Scattered, stipitate, snow-white, globose and closed at 

 first, finally becoming nearly or quite plane, the spreading 

 margin ciliate, up to J mm. across ; externally densely pilose, 

 hairs thin-walled, cylindrical, sparsely septate, straight, 

 minutely rough, 60-90 X 4 /i ; cortex parenchymatous, cells 

 almost quadrate, 8—9 /a diameter near the margin, becoming 

 narrower and elongated downwards ; asci broadly cylindric- 



