270 MR. F. CURREY ON THE FRUCTIFICATION OF COMPOUND SPH^RI^. 



piercing the bark by their long converging necks, formiag compact scattered black 

 pustules on oak-branches. On dead and decaying branches of oak at Weybridge, 

 September, 1856. Much resembling Sph. verrucceformis in its external form, and in 

 the very glutinous nature of the contents of the perithecia. 



72. S. (Diateype) ntjcleata, n. s. Tab. XLVI. fig. 76, ascus with sporidia, x 325. 



Sporidia linear-acumiuate, but constricted in the middle, colourless, 0'0007 to O'OOOS 

 inch long. Perithecia ovate or globose, with rather short ostiola, collected in elon- 

 gated irregular patches surroimded by a dark line. "Weybridge, January, 1856, on 

 furze. 



73. S. (Dl\trtpe or Valsa) vabians, n. s. Tab. XLVI. fig. 77, ascus with sporidia, X 

 325. Sporidia biseriate, obtuse, constricted in the middle, colourless, with granular 

 endochrome, uniseptate, O'OOOG inch long. Perithecia subglobose ; ostiola conical, 

 sometimes umhilicate at the apex. The masses of perithecia penetrate the bark in long 

 parallel lines. This plant unites the characteristics ot the Circumscriptse and Lig- 

 nosse, some specimens having a conceptaculum, and others being scattered, with a 

 black liue and without a conceptaculum. Eltham, June 1855. 



74. S. (DiATBTPE or Valsa) denigrans, n. s. Tab. XLVI. fig. 78, ascus with sporidia, x 

 325. Sporidia uniseriate, often partly overlapping, dark olive-brown, elliptical, bi-, tri-, 

 or multi-nucleate, sometimes quite simple, 0'0005 inch long. Perithecia conical or 

 depressed, with long ostiola, deeply set in the wood ; ostiola penetrating the bark and 

 raising the wood into minute but prominent black tubercles. When a nest of perithecia 

 is cut transversely, there is a black line round them which is very well defined. 



75. S. (Diatbtpe) in^qualis, n. s. Tab. XLVI. fig. 79, ascus with sporidia, x 325. 



Sporidia uniseriate, almost colourless, but rather of a green tinge, obtuse, constricted 

 in the middle, uniseptate, 0'0006 inch long or a little over ; contents granular and 

 nucleate. Perithecia subglobose ; ostiola short and rvigose. The surface of the wood 

 (beneath the epidermis) under which the perithecia lie is blackened and rugged ; the 

 perithecia are sometimes scattered. Masses of perithecia surrounded by a black 

 line. Nearer to the Lignosae than to any other division. On fm'ze, Weybridge, 

 January 1856. 



76. S. (Diatrype) Badhami, n. s. Tab. XLVI. fig. 80, ascus with sporidia and free spo- 

 ridia, X 325. Sporidia biseriate, colourless, usually 4-nucleate, with a minute hyaUne 

 appendage at each end (which, however, is invisible in the ascus), narrowly almond- 

 shaped, 0-0005 to 00006 inch long without the appendages. The perithecia occur 

 singly and in masses ; they are deeply imbedded in the wood ; the surface of the inner 

 bark is much blackened. The plant m habit and appearance resembles S. mcequalis, 

 supra ; but the sporidia are altogether different. 



77. S. (Diateype) veeetjc^eoemis, Ehr. ; Er. S. M. u. p. 355. Tab. XLVI. fig. 81, ascus 

 with sporidia and free sporidia, x about 225. Spoi'iclia very numerous, crowded, 

 yellowish in the mass, almost colourless when single, curved, rounded at the ends, 

 with usually a nucleus at each end, 0-0004 inch long. The asci are usually, but not 

 always, fusiform. 



78. S. (Diateype) favacea, Fr. S. M. ii. p. 354. 



