324 MR. F. CURREY ON THE FRUCTIFICATION OF SIMPLE SPHvERI^E. 



drawn from the specimen marked " a " in the herbarium, the other marked " S. Ce- 

 rasarnm, b," not being in good condition. 



301. S. Tamaeiscinis, Grev. Tab. LVIII. fig. 81, ascus with sporidia, x 325. Sporidia 

 biseriate, rather dark brown, triseptate (or ? the endochrome 4-partite), usually slightly 

 cm-ved, O'OOOS inch long. Occasionally the sporidia have four septa, and rarely none. 

 There is another plant in the herbarium, marked by Mr. Bei'keley S. Tamariscinis, 

 Grev., the perithecia of which contain no asci, but a multitude of minute, elliptical, 

 turbinate or u-regular 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. PiNASTRi, Dec. ; Fr. S. M. ii. p. 488. Tab. LVIII. fig. 82, ascus with sporidia, 

 X 325. Sporidia crowded, coloiu-less, elliptical, often acuminate at the ends, 0-0003 

 to 0-0004 inch long. 



303. S. CLYPEATA, Nees ; Fr. S. M. ii. p. 487. Tab. LVIII. fig. 83, sporidia, x 325. 

 Sporidia uniseriate, rather dark brown, subelliptical or slightly curved, continuous, 

 or with the endochrome divided into two, three, foiu-, or even five portions, 0-0005 to 

 0-0008 inch long. Easily known by the rounded shining shield-like patches of the 

 ))lackened 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. Tab. LVIII. fig. 84, sporidia, 

 X 325. Sporidia uniseriate, dark brown, bordered, elliptical, 0-0006 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. (Hendersonia) mammillana, Fr. S. M. ii. p. 487. Tab. LVIII. fig. 85, sporidia 

 on stylospores, x 325. Sporidia not contained in asci, but borne upon pedicels, 

 In-ingiug the plant within the genus Sendersonia, 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 Sphceria 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 S. Xylostei, 

 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. Tab. 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 /3, as if it were a variety, but I do not find any 

 variety noticed in the ' Syst. Myc' 



309. S. TOMicuM, Lev. Ann. d. Sc. Nat. 1848. Tab. 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. 



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