324 MR. F. CURREY ON THE FRUCTIFICATION OF SIMPLE SPHÆRIZÆ, 
— drawn from the specimen marked “a” in the herbarium, the other marked * $$. Ce- 
rasarum, b," not being in good condition. : 
301. S. TAMARISCINIS, Grev. Tas. LVIII. fig. 81, ascus with sporidia, x 325. Sporidia 
biseriate, rather dark brown, triseptate (or ? the endochrome 4-partite), usually slightly . 
eurved, 0:0008 inch long. Occasionally the sporidia have four septa, and rarely none. 
There is another plant in the herbarium, marked by Mr. Berkeley $.- Zamariscinis, 
Grev., the perithecia of which contain no asci, but a multitude of minute, elliptical, 
turbinate or irregular yellowish spermatia, varying from 0°0005 to 0:0003 inch in 
length. It may be, and probably is, an imperfect state of the true S. Tamariscinis. 
302. S. PrNAsTRI, Dec.; Fr. S. M. ii. p.488. Ta». LVIII. fig. 82, ascus with sporidia, 
x 325. Sporidia crowded, colourless, elliptical, often acuminate at the ends, 0:0003 
to 0:0004 inch long. 
303. S. CLYPEATA, Nees; Fr. S. M. ii. p.487. Ta». LVIII. fig. 83, sporidia, x 325, 
Sporidia uniseriate, rather dark brown, subelliptical or slightly curved, continuous, 
or with the endochrome divided into two, three, four, or even five portions, 0:0005 to 
00008 inch long. Easily known by the rounded shining shield-like patches of the 
blaekened epidermis which cover the perithecia. The sporidia are sometimes a good 
deal broader than those in the figure, and slightly constricted at the septa. 
304. S. XYLOSTEI, Pers.; Fr. S. M. ii. p.487; El.ii.99. Tap. LVIII. fig. 84, sporidia, 
x 325. Sporidia uniseriate, dark brown, bordered, elliptical, 00006 to 0:0007 inch 
long. In many of the sporidia I observed a faint indication of a septum in the 
middle, but I could not satisfy myself that it really existed, or that the endochrome 
was truly bipartite. | 
305. S. (HENDERSONTA) MAMMILLANA, Fr. S. M. ii. p.487. Ta». LVIII. fig. 85, sporidia 
on stylospores, x 325. Sporidia not contained in asci, but borne upon pedicels, 
bringing the plant within the genus Hendersonia, brown, triseptate, or with the 
endochrome 4-partite, irregular in shape and length, from 0-0005 to 0:0007 inch long. 
The sporidia are almost exactly the same as in Sphæria pulvis-pyrius. 
306. S. (HENDERSONIA) HIRTA, Fr. S. M. ii. p.483. Fruit not contained in asci, and 
differing In no respect from the fruit of S. mammillana, except perhaps in being 
slightly smaller. Slight variations in size, however, form no material distinction. 
In the ‘Syst. Myc.’ it is noted as a Cytispora, but would now be ranked with Hen- 
dersonia. | 
307. S. SEMI-IMMERSA, Grev. This plant does not differ in fructification from 8. Æylostei, 
Pers,, nor, as far as I can see, is it capable of being distinguished from the latter 
species. | 
308. s. OCELLATA, Fr. S. M. ii. p.480. Ta». LVIII. fig. 86, sporidia, x highly. Spo- 
ridia biseriate, colourless, slightly curved, rounded or acute at the ends, 0°0004 inch 
long. This specimen is marked ß, as if it were a variety, but I do not find any 
variety noticed in the * Syst. Myc.’ 
309. S, ToxICUM, Lev. Ann. d. Sc. Nat. 1848. Tap. LVIII. fig. 87, sporidia, X 450. 
Sporidia uniseriate and overlapping, or biseriate, dark (almost opaque) brown, sub- 
cymbiform, frequently with two large nuclei, 0-0004 to 0:0006 inch long. 
