67 

 ACROSPERMUM, Tode. 



Fung. Meckl. I, p. 8 (partly). 



Perithecia vertical, elongated-clavate, sessile or stipitate, carnose 

 but firm, and of a horn-like texture when dry. Asci filiform, &spored. 

 Sporidia parallel, filiform, continuous (or jointed in one species). 



A. compressum, Tode, Fungi Meckl. I, p. 8, tab. II, fig. 3. 



Clavaria herbarum, Pers. Comment. Clav. p. 68, tab. Ill, fig. 4. 

 Scleroglossum lanceolatum, Pers. (in Moug. Exs.) 

 Exsicc. Moug. & Nestl. Stirp. Vosg. 671. Rab. Herb. Mycol. 35 id. F. E. 2847. Kriegr. 

 F. Sax. 438. Ell. N. A. F. 1318. Vize. Micr. Fungi, 107. 



Perithecia solitary or subcespitose, sessile, club-shaped, attenuated 

 above and generally compressed, pale at first, finally dark or olive- 

 black, shining, smooth at first, becoming longitudinally subsulcate, 

 1-3 mm. high. Asci filiform, very long (200-400x3-6 //), 8-spored. 

 Sporidia packed side by side, filiform, pale yellowish-hyaline, 100-300 x 

 |-1 jw 7 paraphyses slender. 



On dead herbaceous stems, and culms of grasses, common* 



A. viridulum, B. & C. Grev. IV, p. 161. 



Exsicc. EH. N. A. F. 857. 



Perithecia scattered, ovate-conical, J-^ mm. high, abruptly con- 

 tracted below into a short, stipe-like base, obtuse above, greenish-cin- 

 ereous, subfurfuraceous. Asci linear, 150-200x5-6 fi. Sporidia fili- 

 form, hyaline or slightly yellowish, about as long as the asci. The 

 specimens on decaying hickory limbs have the asci narrower (3J-4 //), 

 but do not appear to differ otherwise. 



On decayed herbaceous stems, So. Carolina (Ravenel), on fallen 

 hickory limbs, and on fallen pear leaves, New Jersey (Ellis), on white 

 oak leaves, Texas (Ravene.1). 



A. Graminum, Lib. Exsicc. Ard. No. 33, Corda Icones, III, p. 27. 



Exsicc. Rab. Herb. Mycol. 776. 



Perithecia at first linear, then clavate, often thicker and somewhat 

 bent in the middle, more or less compressed, often blackish with the 

 apex lighter, mostly about 1 mm. high by 200-300 fi thick. Asci 

 cylindrical, with indistinct paraphyses. Sporidia filiform, very slender, 

 150 x | /*, hyaline, continuous. 



On decaying leaves of grasses, N. America (Sacc. in Syll.) 



Dr. Rehm in Die Pilze considers this only a var. of A. compression. 



A. foliicolum, Berk. Grev. IV, p. 161. 



Exsicc. Rav. Car. II, 65. Rav. F. Am. 734 EH. & Evrht. N. A. F. 2d Ser. 2140. 



Perithecia erect, clavate, 1-1 1 mm. high, yellowish-chestnut, of 



