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



sporidia aud free sporidia, x 325. Sporidia biseriate or crowded, colourless or 

 yellowish, slightly curved, O'OOO-l to O'OOOS inch long, rounded at each end, 

 narrow. 



89. S. (Diatetpe) strumella, Fr. S. M. ii. p. 365. Tab. XLVII. fig. 88, sporidia, x 450. 



Sporidia biseriate, colourless, elliptico-acuminate, triseptate, or, I think, pseudo- 

 triseptate from the division of the endoclirome into fom* parts, 0-0005 to O'OOOO inch 

 long, sometimes slightly curved and slightly constricted in the middle, and frequently 

 only biseptate. 



90. S. (Diatrtpe) radicalis, Pr. El. ii. p. 73. Tab. XLVII. fig. 89, sporidia highly mag- 

 nified. Sporidia biseriate or crowded, elliptical or subturbinate, colom"less, hyaline 

 very minute, 0*0002 to 0-0003 inch long, always, I think, with one, sometimes with 

 two or three septa. The perithecia are deeply buried and surrounded by an orange- 

 coloured stroma, through which the ostiola penetrate in the form of little, round, 

 black, disc-like spots. 



91. S. (DiATRYPE) QUERCINA, Pcrs. Tab. XLVII. fig. 90, ascus with sporidia and free 

 sporidia, x 325. Sporidia biseriate, endoclirome 4-, sometimes 6-partite, oleaginous, 

 but sometimes granular, 0-0020 to 0-0028 inch long. This plant has been much 

 misunderstood. The above description is from a specimen lent to me by Mr. Berkeley. 

 I doubt whether any of the specimens at Kew are the true species. Some of them 

 are certainly ^S*. leiphcemia ; aud the others are not in a sufficiently good condition 

 to decide upon. 



92. S. (Diatrxpe) lanciformis, Fr. S. M. ii. p. 362. Tab. XLVII. fig. 91, ascus with 

 sporidia, x 325. Sporidia usually biseriate, but occasionally (when the sporidia are 

 small, I thinlc) uniseriate, pale clear brown, when ripe flatly elliptical, rather obtuse 

 at the ends, the extreme tips frequently, if not always, pellucid, and the sporidium 

 of a darker colour in the part immediately adjoining the pellucid tips. Length very 

 variable, ordinarily 0-002 inch. 



93. S. (Diatrtpe) hystrix, Tode ; Fr. S. M. ii. p. 364. Tab. XLVII. fig. 92, asci with 

 sporidia, X 325. Sporidia uniseriate or biseriate, elliptical, slightly constricted at the 

 septa, 3- or 4- septate with frequently longitudinal and oblique septa, pale clear brown, 

 00006 to 0-0008 iuch long. Described from a specimen out of Mr. Berkeley's herba- 

 rium, the plant at Kew not having perfect fruit. 



94. S. (Diatrype) ceratosperma, Tode ; Fr. S. M. ii. p. 364. Tab. XLVII. fig. 92, ascus 

 with sporidia, X 325. Sporidia biseriate, colourless, simple, curved, 0-0003 to 0-0004 

 inch long. Described from a specimen of Mr. Berkeley's, the plant at Kew not 

 being the true species. 



95. S. (Diatrype) ferruginea, Pers. ; Fr. S. M. ii. p. 363. Tab. XLVII. fig. 94, asci 

 Mdth sporidia, x 325. Sporidia very long, linear, acuminate at the ends, colourless, 

 with many nuclei. 



96. S. (Diatrype) nigerrima, Bloxam, MSS. Sporidia biseriate, closely packed, vei-y 

 irregular in shape (arcuate, subelliptical or lozenge-shaped), with a number of 

 cu-cular nuclei, colourless, but with a greenish tinge, 3-, 4-, or 5-septate. Perithecia 

 irregularly ovate or conical, sometimes arranged in tiers, raising the matrix into a 



