102 FUNGUS-FLOEA. 



oblong, straight or slightly curved, hyaline, for a long time 

 3-septate, then sometimes hecoming 4— 5-septate, smooth, 

 18-24x5-7 /a; paraphyses very numerous, very slender, 

 rather wavy, more or less agglutenated together at the 

 slightly thickened, coloured tips ; hypothecium pale brown. 



Lecanidion proximum, Sacc, Syll., viii.,n. 3261. 



On old weathered oak wood. 



Type specimen examined. 



Patellaria clavispora. B. & Br., Ann. Nat. Hi&t., 

 n. 774; Ser. ii. vol. xiii. p. 19 (1854); Phil., Brit. Disc, 

 p. 366, pi. xi. fig. 70. (figs. 15-20, p. 91.) 



Gregarious, bursting through the bark when present, at 

 first subglobose, then expanding and becoming marginate, 

 rather fleshy, contracting and slightly concave when dry, 

 pitch-brown, glabrous, 1-1 • 5 mm. across ; exoipulum con- 

 sisting of interwoven hyphae which become clavate, septate, 

 brown, and arranged more or less parallel at the surface 

 and margin ; asci clavate, apex narrowed, 8-spored ; spores 

 biseriate upwards, in 1 row below, narrowly clavate, apex 

 rounded, base tapering and acute, straight or very slightly 

 curved, hyaline or with a tinge of green, 3-5-septate, with 

 an indication of a constriction at the septa when mature, 

 80-36 X 5-6 ju.; paraphyses numerous, slender, tips clavate 

 or irregularly nodulose, septate, brown, adhering, sometimes 

 branched. 



Durella clavispora, Sacc., Syll., n. 3257. 



On branches of privet, ash, &c. 



Type specimen examined. 



Eeadily distinguished under the microscope, by the 

 clavate, septate spores, and paraphyses with brown, thickened 

 tips. 



Patellaria macrospora. Phil., Brit. Disc, p. 367; 

 Eehm, Krypt.-Flora, Disc, p. 334. 



Usually gregarious, often on a pale crust- like patch, 

 clavate and closed at first, then expanding and becoming 

 nearly plane, black, margin greyish, up to J mm. across; 

 excipulum composed of parallel, thin, brown hyphae radially 

 arranged; asci clavate, apex rounded, 8-spored; spores 

 2-seriate, hyaline, narrowly fusiform, often with the widest 



