1S85.] 



NEW FLORIDA FUNGI. 



99 



170—185 !J- diameter, with a thin, reticulated margin and indistinctly per- 

 forated in the center, texture cellular. Asci 30—35 x 6—8 IJ-, oblong and 

 rather broader below and abruptly contracted into a short, stipitate base. 

 Paraphyses none. Sporidia biseriate, oblong, 1-septate, rather narrower 

 and more acute at the lower end, 7—12 x 2i— 3 !->-, hyaline. When a peri- 

 thecium is removed from the leaf, a piece of the epidermis often adheres 

 to its lower surface so that under the microscope the stomata are visible 

 through the thin edge of the perithecium, appearing as if they actually 

 formed a part of it. It is to be noted that in this and most of the other 

 species with flattened perithecia, 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. 



Sph^rella ixcisa, E. & M. — On dead petioles of Sahal serrulata. 

 Perithecia membranaceous, gregarious, globose or depressed-globose, 

 i mm., covered by the blackened epidermis. Asci lanceolate, 100—120 x 

 8—10 fJ-, without paraphyses. Sporidia fusiform, attenuated to a bristle- 

 like point at each end, endochrome distinctly divided in the middle, pale 

 yellowish ; length, including the bristle-pointed ends, 40—50 width 

 3—4 /^-. The walls of the perithecia are closely adnate to the matrix, and 

 with difliculty separable from it. 



Ophtoboltjs yersisporus, E. & M.— On dead petioles of Sabal serru- 

 lata. Perithecia scattered or gregarious, covered by the cuticle, lenticu- 

 lar, I — I mm., covered by the blackened epidermis which is whitened just 

 around the short, obtuse, barely erumpent ostiolum. Asci 70—80 x 8—9 IJ-. 

 Paraphyses? Sporidia filiform, curved, multinucleate at first but at 

 length of a uniform pale yellow color without nuclei or septa, 60—70 x 2 

 — 2i IK 



Melanconium Sahal, Cke. is usually associated with this. 



DiDYMOSPHuERiA SERRULATA, E. & M.— On bleached spots on dead 

 petioles of Sahal serrulata. Perithecia as in the preceding species. Asci 

 100—112 X 10—12 /^-, cylindrical with abundant linear paraphyses. Spori- 

 dia 1-seriate, hyaline at first and 3-4 nucleate, soon becoming dark brown 

 and 1-septate. 18—20 x 5—6 /^-, surrounded with a hyaline envelope at first. 

 The sporidia are much like those of Antliostomella leucohasis, E. &M., 

 only longer and 1-septate, and the perithecia are larger and more promi. 

 nent. 



SPH.SRIA (Anthostomella) leucobasis, E. & M., and Sph^eria 

 sABALEXSioiDES, E. & M., in Am. 'Nat., Oct. 1882.— The general appear- 

 ance of these two species is much the same, but the latter is scattered 

 between the dark blotches on which the former occurs, and the substance 

 of the matrix is not whitened beneath. The sporidia also are uniformly 

 narrower, 4—5 and have a shght apiculus at the lower end (sometimes 

 at both ends) separated from the body of the sporidium by a slight divi- 

 sion of the endochrome but finally absorbed ; they are also subhyaline 

 with a yellowish tint in all the specimens examined, though it is not 



