719 

 L. arundmaeeum, (Schrad.) 



Hysterium arundinaeeum, Schrad. Jourii. Eot. II, p. 68, tab. 3, fig. 3. 

 Lophodcrmium arnndinaceuvi. Chev. Flore Paris. I, p. 435. 



Perithecia scattered or uTOii'arious. on pale spots, innate-erumpent 

 :inl prominent, lying in the direction of the axis of the stem, elongated 

 or elliptical, straight, simple, obtuse or acute. In-own or Mack, 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, 

 \-'2 nun. lon<r. \-^ mm. wide. Asri chtvate, sulisessile, 70-80 x S-10 u. 

 (75-100x9-12 /.'.. Ivdini). with filiform paraphyses longer than the 

 asci and mostly undulate above. Sporidia 8 in an ascns. filiform. 

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

 H-2 //. Tin 1 spermogonia (Leptostromella hysterioides, Sacc.). have 

 curved, subulate, continuous sjiorulcs 16-18 // lonir. 



Yar. rul(jn><>. Fekl. Synjli. Myc<>l. p. 256. Exsicc. Fckl. F. Rh. 

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

 IVrithecia scarcely prominent. brownish elliptical, with a very narrow 

 clei'i. 1 \-l mm. IOIILI-. J,-', mm. wiile. Sporidia 70-75 <>. lon^. 

 On dead leaves, -heaths and culms of Phragmites cominuntx. We have 

 -een no American specimen-. 



Yar. culmigenum, (Fr.) Fckl. Symb. p. 257. Hysterium 

 niiin.Vv. S. M. II. ]>. -V.M . and It. gramineum, Fr. ibid.; Loplotlct 

 arundinqceum, b. culmigenum, Fckl. Symb. p. 257. Kxsicc. I^ckl. F. 

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

 F. E. 122C.. Kehm Asc. 271. Sydow, M. March. 25, 855. Ell. X. 

 A. F. 465.--Desm. PL Cryjit. Ed. I, 85. Perithecia strongly ju-omi- 

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

 J-K mm. lon<r, J i mm. broad. Sporidia 45-75 x 1| //, subacute. 



On dead culms and sheaths of Poa compressa, Phlcum praten*< 

 and Andropogon Virginicus, common around Xewfield, X. 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. Rehrn). Exsicc. Fckl. 

 F. Rh. 1751. Rab. Herb. Mycol. IE, 723. Sacc. M. Yen. 1280. 

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

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

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



On dead leaves of various species of Carex, Xewfiehl, X. J. 



