98 FUNGUS-FLORA. 



Patellaria pallida, Berk., Ann. Nat. Hist., n. 1831 (1879), 

 p. 212; Phil., Brit. Disc., p. 362. 



Pat inella pallida, Sacc., Syll., viii. n. 3163. 



On smooth bark. 



Type specimen examined. 



Somewhat contorted, translucent, pale amber or horn- 

 colour when dry. The spores appear to remain continuous 

 for a long time, but distinctly 1-septate spores were seen in 

 asci. 



ABEOTHALLUS. Do Not. (emended.) (figs. 18-20, 

 p. 12.) 



Parasitic on lichens or hepatics ; ascophore innate, erum- 

 pent, disc naked from the first, becoming convex ; excipulum 

 incomplete or entirely absent ; asci clavate, 8-spored, sessile 

 or nearly so; spores 1-septate, brown; paraphyses numerous, 

 longer than the asci, adhering together. 



Abrothallus, De Notaris, Giorn. Bot. Ital., ii. p. 192 (1846); 

 Sacc., Syll., viii. p. 739. 



Lecidea, Leighton, Lichen-Flora of Gt. Brit., p. 240. 



Allied to Celidium, from which genus it is readily distin- 

 guished by the coloured spores. 



Abrothallus parmeliarum, Arnold, Flora, 1874, p. 102; 

 Sacc., Syll., viii. n. 3032. (figs. 18-20, p. 12.) 



Ascophore erumpent, blackish-brown, very convex, almost 

 hemispherical in section, disc minutely rugulose, rather 

 shining, immarginate, excipulum absent ; asci clavate, almost 

 sessile ; spores 8, irregularly biseriate, elliptic-oblong, ends 

 obtuse, 1-septate, very slightly constricted at the septum, 

 there is sometimes a very slight tendency on the part of the 

 upper cell to become a little broader than the lower one, 

 14-18 X 4-6 p.; paraphyses very numerous, standing above 

 the asci, agglutinated together, septate, 3-4 /A thick at the 

 slightly thickened, olive-brown apex. 



Lecidea parmeliarum, Leight., Lich. Fl., p. 386. 



Parasitic on the thallus of various species of Parmelia. 



Specimen in Herb., Kew, determined by Nylander, exa- 

 mined. 



