297 



230. 1*. imlvisculji Cooke. On stems of Phi/tolncca. Gregarious, very iiii- 

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

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

 Bjwridia very minute. Cups j'^ m. m. broad; asci .O^j x .005 m. m. N. 

 Y. ((jferard). 



2;n. p. Pteridls Demn. On stems of Pteris. Bethlehem (Schw.). 



2.'{2. P. atrociuerea Luoke, Fungi Britt. On Polygonuni. N. Y. (Peck, 

 No. ;5o2). 



233. P. brassicaecola B. On cabbage stems. Thin, expanded, flexuous, 

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

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



23-t. P. exidiella B. tb C. On herbaceous stems. Gregarious, regular, ex- 

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

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



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



23G. P. Ariliidiiiai'iae B. <k C. On Arundiunria. Flattened, soon decidu- 

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

 pallid. Car. (Curt.). 



237. P. steiiostoma B. <& C. On Andropofjon. Erumpent, elongated, quite 



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

 ate, binucleate. Car. (Curt.). 



238. P. Aiidropogonis i?. <fcC. Oa. Aiuiropogon. 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. V. AivieWa. Cuoke. On And ropog on. Gregarious, sessile, soft, minute; 



cups at tiret hemispherical, soon flattened (.03 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, 2281). 



240. Pcziza cerviiiula Couke. On dead Carex. Subgregarious, sessile, very 



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

 tracted at the paler margin, externally fawn color (0.1-0.3 m. m.); 

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

 curved, simple (.012-014 x .002 m. m.). New Jersey (Ellis, 322G). 



241. P. iiml)oiiata P. On leaves. Car. (Curt.). 



242. P. protrusa B. On dead leaves of Mdgnulia. Erumpent, punctiform, 



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

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

 liudrical (.000a-.0005 inches). Car. (Curt.). New Jersey (Ellis). 



243. P. pinastri C. cf- P. On leaves of Pinus rigidn. 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 (.0005-.000(i inches). N. Y. (Peck, 349). 



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



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

 lid yellow. (So deciduous that specimens are preserved with dilH- 

 culty.) Car. (Curt.). 



BUL. BUP. SOC. NAT. SCI. t38) MARCH, IST.'J. 



