719 

 L. arundinaceum, (Schrad.) 



Hysterium arundinaceum, Schrad. Journ. Eot. II, p. 68, tab. 3, fig. 3. 

 Lophodermium arundinaceum, Chev. Flore Paris. I, p. 435. 



Perithecia scattered or gregarious, on pale spots, innate-erumpent 

 aud prominent, lying in the direction of the axis of the stem, elongated 

 orlelliptical, straight, simple, obtuse or acute, brown or black, with 

 sharp, sometimes white-margined lips, finally a little open so as to leave 

 a narrow crevice through which the pale brown disk is partly visible. 

 i-2 mm. long, \-\ mm. wide. Asci clavate, subsessile, 70-80 x 8-10 p, 

 (75-100x9-12 fi, Renin), with filiform paraphyscs longer than the 

 asci and mostly undulate above. Sporidia 8 in an ascus, filiform, 

 straight or slightly bent, continuous, multinucleate, hyaline, 40-70 x 

 1 i-2 fi. The spermogonia (Leptostromella hysterioides, Sacc.), have 

 curved, subulate, continuous sporules 16-18 p long. 



Var. vulgaie, Fckl. Symb. Mycol. p. 256. Exsicc. Fckl. F. Rh. 

 737. Rab. F. E. 1613. Sydow, M. March. 538. Thum. M. U. 77. 

 Perithecia scarcely prominent, brownish elliptical, with a very narrow 

 cleft, 1J-2 mm. long, |-| mm. wide. Sporidia 70-75 p long. 

 On dead leaves, sheaths and culms of Phragmites communis. We have 

 seen no American specimens. 



Var. culmigenum, (Fr.) Fckl. Symb. p. 257. Hysterium culmige- 

 num, Fr. S. M. II, p. 591 , and b. gramineum, Fr. ibid.; Lophodermium^ 

 arundinaceum, b. culmigenum, Fckl. Symb. p. 257. Exsicc. Fckl. F. 

 Rh. 738, 740, 2557. Kze. F. Sel. 161. Rab. Herb. Mycol. 34. Rab. 

 F. E. 1226. Rehm Asc. 27.1. Sydow, M. March. 25, 855. Ell. N. 

 A. F. 465. Desm. PI. Crypt. Ed. I, 85. Perithecia strongly promi- 

 nent, mostly elliptical, obtuse, black, opening with a decided cleft. 

 J-1J mm. long, \-\ mm. broad. Sporidia 45-75 x \\ p, subacute. 



On dead culms and sheaths of Poa compressa, Phleum pratense 

 and Andropogon Virginicus, common around Newfield, N. J., on 

 wheat straw, Ohio (Kellerman); probably not uncommon everywhere. 



Var. caricinum, (Rob.); Lophodermium caricinum, Duby, Hyst. 

 p. 47; Aporia neglecta, Duby, 1. c. p. 51 (sec. Rehm). Exsicc. Fckl. 

 F. Rh. 1751. Rab. Herb. Mycol. H, 723. Sacc. M. Ven. 1280. 

 Perithecia elliptical, acute, J-| mm. long, J-J mm. wide, margin of 

 lips finally yellowish, cleft rather narrow. Asci 60 x 6-8 p. (60-80 x 

 6-9 p, Rehm). Sporidia 45-55 x 1J p (50-60 x 1-1 J fi, Rehm). 



On dead leaves of various species of Gar ex, Newfield, N". J. 



