42 



they actually formed a part of it. It is to be noted that 

 in this and most of the other species with flattened peri- 

 thecia, the wall of the perithecium is nearly obsolete below, 

 so that the perithecium is in fact hardly more than a shield- 

 like disk covering the asci. 



Sphaerella incisa, E. & M. — On dead petioles of 

 Sabal serrulata. Perithecia membranaceous, o;regarious, globose 

 or depressed-globose, V* nun., covered by the blackened 

 epidermis. Asci lanceolate, 100 — 120 x 8 — 10 n, without 

 parapliyses. Sporidia fusiform, attenuated to a bristle -like 

 point at each end, endochrome distinctly divided in the 

 middle, pale yellowish; length, including the bristle-pointed 

 €nds, 40-50 /', width 3-4 (i. The walls of the perithecia 

 are closely ndnate to the matrix, and with difficulty sepa- 

 rable from it, 



Ophiobolus versisporus, E & M. —On dead petioles 

 of Sabal serrulata. Perithecia scattered or gregarious, covered 

 by the cuticle, lenticular, % — % mm, covered by the 

 blackened epidermis which is whitened just around the short, 

 obtuse, baiely erumpcnt ostiolum. Asci 70—80 x 8-9 fji. 

 Paraphyses? Sporidia filiform, curved, niultiuucieate at first 

 but at Ienj.'.th of a uniform pale yellow color without nuclei 

 or septa, 60—70 x 2—2^3 ."• 



Didy mosphacria serrulata, E. & M. — On bleached 

 spots on dead petioles of Sabal serrulata. l^n-ithecia as in the 

 preceding species. Asci 100-112 x 10-12 /«, cylindiical 

 with abundant linear paraphyses. Sporidia l-scriatc, hya- 

 line at first and 3—4 nucleate, soon hecoming dark brown 

 and l-septate, 18 — 20 x 5-6 |«, surrounded with a hyaline 

 envelope at first. The sporidia are nmch like those of 

 Anthostomella leucobasis, E. & M,, only longer and l-septate, 

 and the perithecia are larger and more prominent. 



Sphaeria (Anthostomella) leucobasis, E. & M., 

 and Sphaeria sa balensiodes, E. & M., in Am. Nat., Oct. 

 1882. — The general appearance of these two species is'much 

 thesHiue, but the latter is scattered between the dark blotches 

 on which the former occurs, arid the substance of the matrix 

 is not whitened beneath. The sporidia also are uniform 

 narrower, 4 — 5 ^<, and have a slight apiculus at the lowe'r 

 end (sonujtimes at both ends) separated from the body of 

 the sporidium by a slight division of the endochrome but 

 finally absorbed; they are also subbyaline with a yellowish 

 tint in all the specimens examined, though it is not impro- 

 bable that they may finally become brown. This species 

 occurs on some of the specimens with no. 1199, N. A. F. 



4 



