297 



230. 1*. pulviscula Cooke. On stems of Phytolacca. Gregarious, very mi- 

 nute, like grains of sugar, soft, almost tremelloid ; cups globose, then 

 flattened, smooth, pallid, watery yellowish white; asci cylindrical; 

 sporidia very minute. Cups ^^ m. m. broad; asci .03 x .005 m. m. N. 

 Y. (Gerard). 



2;{1. P. Pteridis Desm. On stems of Pteris. Bethlehem (Schw.). 



232. P. atrocinerea Looke, Fungi Britt. On Polygonum. N. Y. (Peck, 



No. 352). 



233. P. brassicaecola B. Ou cabbage stems. Thin, expanded, fiexuous, 



externally and internally rufous ; sporidia elliptic, concatenate, uni- 

 nucleate (.0004 inches). N. Eng. (Sprague). 



234. P. exidiella B. & U. On herbaceous stems. Gregarious, regular, ex- 



ternally and internally rufous yellow; asci clavate ; spoiidia oblong, 

 narrow, hyaline (.00028 inches). Conn. (Wright). 



235. P. dilntella Fr. On herbaceous stems. Bethlehem (Schw.). 



23<J. P. Aruiidinariae B. & C. On Arunclinaria. Flattened, soon decidu- 

 ous, pitch brown, seated on an orbicular spot-like mycelium; disc 

 pallid. Car. (Curt.). 



237. P. steuostoma i?. d; C. On Andropoyon. Erumpent, elongated, quite 



black, mouth narrow ; asci clavate ; sporidia oblong, narrow, uniseri- 

 ate, binucleate. Car. (Curt.). 



238. P. Aiidropogoiiis 5. tfi C. On Anclropogon. Cups at first closed, black, 



at length expanded, margin undulated; disc yellowish bay; asci cla- 

 vate; sporidia biseriate oblong, narrowed toward each end, triseptate 

 (.0006 inches). Car. (Curt.). 



239. P. atriella Cooke. On Andropogon. Gregarious, sessile, soft, minute; 



cups at first hemispherical, soon flattened (.02 m. m.), slightly margin- 

 ate, black, smooth ; disc dark cinereous, becoming blackish ; asci sub- 

 clavate ; sporidia narrowly fusiform (.03 x .0025 m. m.), with a row of 

 nuclei; paraphyses filiform. N. Jersey (Ells, 2231). 



240. Peziza cerviniila Cooke. On dead Carex. Subgregarious, sessile, very 



minute; cups globose, at first pierced, then open, hemispherical, con- 

 tracted at the paler margin, externally fawn color (0.1-0.2 m. m.); 

 disc whitish; asci clavate (.04 ra. m.) ; sporidia cylindrical, straight or 

 curved, simple (.012-.0L4 x .002 m. m.). New Jersey (Ellis, 2226). 



241. P. uiuboiiata P. On leaves. Car. (Curt.). 



242. P. jn'Otrnsa B. On dead leaves of Magnolia. Erumpent, punctiform, 



here and there encircled by the epidermis ; mouth fiexuose, externally 

 granulated, chestnut color; disc concave, white; sporidia oblong, cyl- 

 lindrical (.0003-.0005 inches). Car. (Curt.). New Jersey (Ellis). 



243. P. pinastri C. & P. On leaves of Pinus rigida. Sessile, soft, scat- 



tered, at first sprinkled with an evanescent whitish meal, soon naked 

 and greyish brown hemispherical, then plane ; margin often lacerated ; 

 disc paler, pallid grey; asci cylindrico clavate ; sporidia narrowly lan- 

 ceolate, obtuse (.OOOo-.OOOl) inches). N. Y. (Peck, 349). 



244. P. olivaccoliitea B. & C. On dead leaves. Minute, erumpent, very 



deciduous, externally olivaceous, margin whitish; disc concave, pal- 

 lid yellow. (So deciduous that si)ecimens are preserved with dilli- 

 culty.) Car. (Curt.). 



BUL. BUF. SOC. NAT. SCI. (38) MAUCI!. 187."). 



