SPH^RIACEI. 819 



Lie. Sp.\\.p.^^. Fr. S.M.iii. p.^Q^. Desm. exs. no. 140. M, 

 apiocarpum, Q. Alni, Corda. \i.f. 13. Rahb. exs. no. 469. Fckl. 

 exs. no. 89. 



AscoPHORE. — Peritliecia globose, black ; asci oblong-linear; 

 sporiclia narrowly elliptical or oblong, obtuse, curved, uniseptate, 

 scarcely constricted, with a hyaline setiform appendage at each 

 extremity. — Tul. Carp. ii. ^. 21, /. 19, 33. Cooke exs. no. 369. 

 Wuestneia siiffusa, Fckl. exs. no. 593. Sphceria thelebola, Cuit. 

 Linn. Trans, xxii./. 158 (not Fries). 



On alder twigs. 



2456. IVIelanconis chrysostroma. Tul. "Yellow-disc 



Melanconis." 



CoNiDiA. — Conidia ovate, rounded behind, apiculate at the 

 base, olive-brown, with 1-2 nuclei. — Melanconium bicolor, Q. 

 Eabh. exs. no. 590. Fckl. exs. no. 90. 31. microsporum^ Nees. 

 Desm. exs. no. 753. 



AscoPHORE. — Pustulate ; perithecia irregular, circinating and 

 decumbent ; ostiola scarcely exserted, pierced ; disc yellow ; 

 asci elongated, clavate ; sporidia elliptic, attenuated, at length 

 uniseptate, strongly constricted. — Tul. Carp. \\.p. 125, t. 24,/. 14- 

 20. Valsa chrysostroma, Fr. Summ. V.S.p. 412. B. ^'. Br. Ann. 

 N.H. no. 861*. t. 10,/. 16. Berk. exs. no. 296. Sph. xanthos- 

 troma, Mont. Ann. S. Nat. 1834, t. 12, f. 4. Berk. Mag. Zool. 4' 

 Bot. no. 22. Fries, exs. no. 444. Desm. exs. no. 1756. Curr. Linn. 

 Trans, xxii. ^.48,/. 160. 



On hazel and hornbeam. 



Perithecia small, hardly visible above the bark, but very visible when the 

 epidermis is stripped off. Easily known by its yellow stroma. Sporidia 

 .(•O0O7-'O0O9 in.) •0177-'022 m.m. long. 



2457. Melanconis Bexkelsei. Tul. " Berkeley's Melanconis." 



Conidia. — Ovate elliptic, or elliptic oblong, straight, obtuse, 

 black, semi-opaque, quadrilocular (rarely 2-6 locular). — Stilbos- 

 pora macrosperma., B. ^- Br. Hook. Journ. Bot. iii. (1851). t. 9, 10. 



AscoPHORE. — Perithecia circulating, or crowded; ostiola 

 scarcely prominent, black ; asci linear-oblong ; sporidia uniseriate, 

 ovate, elliptic, or elliptic-oblong, straight, quadrilocular, dark 

 brown, hyaline at the extremity. — Tul. Carp. \\. p. 130. Fckl. 

 exs.no.hd,^. Sphceria inquinans, B. ^ Br. Hook. Journ. Bot. iii. 

 (1851), 1. 10. var. Ulmi (not Massaria inquinans, B. 4' Lr.J. 



On elm twigs. 

 Conidia and sporidia '0o-*06 m.m. long, •015-*02 m.m. broad. 



