MR. F. CURREY ON THE FRUCTIFICATION OF SIMPLE SPH^ERI^. 323 



sporidia, X about 450. Sporidia biseriate, colourless, sUghtly curved, 0*0002 to 

 0*0003 inch long, much resembling those of S. stigma. 



293. S. viBRATiLis, Fr. S. M. ii. 482. Authentic specimens of this Sphceria exist in the 

 Hookerian herbarium, but the fruit is not ripe. As far as I could make out, the 

 sporidia appear to differ very little from those of S. stellulata. There is another 

 Sphceria in the collection marked by Mr. Berkeley " S. vibratilis, Er.," in which the 

 fruit is very different. Tab. LVIII. fig. 74, represents the fruit of the latter plant, 

 X 325, of which the following is a description : — Sporidia uniseriate or overlapping, 

 pale brown, oblong-elliptic, but slightly curved, endochrome bipartite, 0-0005 to 

 0-0006 inch long. 



294. S. OPERCULATA, A. & S. ; Fr. S. M. ii. 479. Tab. LA^'III. fig. 75, ascus with sporidia, 

 X 325. Sporidia biseriate, brown, curved, 0-0005 inch long. 



295. S. (Halonia) cubicularis *, Fr. S. M. ii. 477 ; El. ii. 97. Tab. LVIII. fig. 76, 

 sporidia, x 325. Sporidia uniseriate, dark brown, elliptical, often aciuninate at the 

 ends, 0-0006 to 0-0007 inch long. Easily knoAvn by the ostiola being surrounded by 

 a white tubercle formed from the wood. The sporidia, when free, are often surrounded 

 by a narrow border. I have a specimen from Dr. Montague in which the sporidia 

 reach 0-0010 inch in length. It wiU be observed that the sporidia differ entirely 

 from the generic characteristics given by Fries. 



296. S. LiviDA, Fr. S. M. ii. 479. Tab. LVIII. fig. 77, sporidia, x 325. Sporidia uni- 

 seriate, brown or yeUo^dsh-brown, normally I think triseptate, but frequently with 

 longitudinal partial septa, and sometimes (from the breaking iip of the endochrome) 

 having a cellular appearance, elliptical, 0-0005 to 0-0007 inch long. 



297. S. (Sph^ropsis) pruinosa, Fr. S. M. ii. 486. Not ascigerous, the perithecia pro- 

 ducing only a quantity of minute curved spermatia, colourless when single, greenish 

 bro'vvn in the mass. There are two specimens in the herbarium, one from the Scl. 

 Suec. without fruit, and the other containing the spermatia, just mentioned. 



298. S. (Sph^ropsis ?) Ole^, D.C. ; Fr. S. M. ii. 489. Tab. LVIII. fig. 78, fruit, x 325. 

 There appear to be no asci ; stylospores cylindrical, colourless, rounded at the ends, 

 0-0008 inch long, sometimes with a border, and sometimes with nuclei. 



299. S. (Hercospora) rhodostoma t, A. & S. ; Er. S. M. ii. 485. Tab. LVIII. fig. 79, 

 sporidia, x 325. Sporidia dark brown when perfect, 3-septate, with constrictions at 

 the septa, 0-0009 to 0-001 inch long. In the Kew specimens many of the sporidia 

 are very small and uniseptate. 



300. S. Cerasartjm, MS. Tab. LVIII. fig. 80, sporidia, X 325. Asci long and narrow ; 

 sporidia biseriate, rather dark brown, with the endochrome bipartite, slightly con- 

 stricted in the middle, acuminate at each end, 0-0009 inch long. The sporidia are 



• Halonia, Fr. Perithecium entire, covered, membranaceous ; ostiolum piercing through and surrounded by a 

 coloured heterogeneous disk ; nucleus gelatinous ; asci delicate ; spores fusiform, pellucid, septate. 



t Hercospora, Fr. Perithecium discoloured, subcarbonaeeous, cup-shaped, open, covered above with a web and 

 by the bark, breaking through a heterogeneous tubercle ; asci elongated, mixed with paraphyses ; spores dark- 

 coloured, opaque, septate. 



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