ASCOMYCETES 371 



Spores miiriform, 



Pleospora, Rabenh. — Perithecia scattered or subgre- 

 garious, immersed, or erumpent through the epidermis, 

 spherical, ostiolum generally papillate, glabrous, membran- 

 aceous, rarely hard {Sderopled) ; asci clavate, 4-8-spored ; 

 spores elongated, yellowish, or fuliginous, rarely hyaline 

 {Catharinid) ; conidia, pycnidia, and spermogonia some- 

 times present. 



Pleospora gmnmipara, Oud., Hedw., 1883, p. 162. — 

 Perithecia formed in the neighbourhood of the pycnidia 

 and conidia, black, glabrous, globose, \-\ mm. diam., 

 membranaceous, sometimes bearing sessile Coryneum 

 conidia on the surface; asci 90 x 18-20 /i, 8-spored; spores 

 biseriate, 3-septate, constricted at the septa, then becoming 

 muriform, dark brown, 24X12 /u, ; paraphyses absent; 

 pycnidia, conceptacles resembling the perithecia, conidia 

 brown, continuous, then transversely septate, finally muri- 

 form, about 7 /i diam. 



Conidia^ Coryneum gummiparum, Oudem., Hedw., 1883, 

 p. 131. — Fruit clusters very minute, dotlike, black, 

 gregarious ; conidia springing from a brownisii prosenchy- 

 matous cushion, oblong or oblong-ovate, pale smoky-olive, 

 3-septate, sHghtly constricted at the septa, 14 x 6 /* ; conidio- 

 phores colourless, shorter than the conidia. 



Hypocreaceae. — Perithecia free, or more or less immersed 

 in a somewhat soft, fleshy, waxy, or rarely a byssOid stroma, 

 somewhat fleshy, or waxy-membranaceous, generally reddish 

 (rarely bluish, olive-yellow, or pallid), never carbonaceous, 

 mouth distinct ; asci 4-8-many-spored, usually containing 

 8 spores ; secondary conditions of fruit frequent. 



