719 

 L. ariindinaceum, (Schrad.) 



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

 Lopkodermium arundinaceum^ Chev. Flore Paris. I, p. 435. 



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

 and prominent, h'ing in the direction of the axis of the stem, elongated 

 or elliptical, 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 vi^hich the pale brown disk is partly visible, 

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

 (75-100x9-12 ;L(, Rehm), with filiform paraphyscs longer than the 

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

 straight oi' slightly bent, continuous, multinucleate, hyaline, 40-70 x 

 1 1-2 fi. The spermogonia (Leptostromella hyste7'ioides, Sacc), have 

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



Var. vulgare, 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, 1^-2 mm. long, ^-| mm. wide. Sporidia 70-75 /ji long. 

 On dead leaves, sheaths and culms of Phragmites communis. We ha\(' 

 seen no Amei-ican specimens. 



Vai\ culmigenum, (Fr.) Fckl. Symb. p., 257. Hysterium rulviige- 

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

 arundinaceum, b. cidmigeuum, 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. 271.— Sydow, M. March. 25, 855.— Ell. N. 

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

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

 i-lj mm. long, J-J mm. broad. Sporidia 45-75 x 1 J /.<, subacute. 



On dead culms and sheaths of Poa compressa, Phle^wi 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. IF, 723.— Sacc. M. Yen. 1280. 

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

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

 6-9 n, Rehm). Sporidia 45-55 xl\ fi (50-60 x 1-1 1 fi, Rehm). 



On dead leaves of various species of Carex, Newfield, N. J. 



