673 

 X. cornn-damae, (Sclnv.) 



Sphceria cornu-damcs, Schw. Syu. N. Am. 1163. 

 Xylaria cornu-dam<z, Berk. Grev. IV. p 

 Exsicc. Rav. Fungi Car. Fasc. I, No. 45. 



Suberose, subradicate. 1-4 inches hio-h, simple and cylindrical or 







often compressed and furcately divided above, sometimes three or 

 more clubs borne at the apex of a single stipe, covered at first with 

 the white coiiidial hymenium, finally very black: heads fertile to the 

 subobtuse apex or oftener with a narrow, short, sterile tip, \-\ cm. 

 diam., contracted rather abruptly below into the rather slender 

 (1-2 cm. long) stipe, which arises from a purplish-black tomentum. 

 Perithecia globose. \ mm. diam.. rather prominent, black, with a papil- 

 liform or short-cylindrical ostiolum. Asci narrow-cylindrical, p. sp. 

 100-1 10 x 5 IJL. Sporidia uniseriate. fusoid, slightly curved, brown, 

 becoming nearly black, continuous. 14-20 x3|-4J // (mostly about 

 15 x 3 A IJL). 



On rotten wood. Carolina ^nd Pennsvlvania (Schw.). 



/ 



The measurements are from the specc. in Herb. Schw. and in 

 Rav. F. Car. Dillci-s from A". Hypoxylon in its more robust growth 

 and larger sporidia. 



X. pedunculata, (Dicks). 



Sphtzria pednnculata, Dicks. Crj'pt. Brit. IV, p. 27, tab. XII, fig. 

 Xylaria pedunculata^ Fr. Sinnma Veg. Scand. p. 382. 



Stroma emerging from the ground, rather thick, flexuous, dark 

 brown, simple or rarely sparingly branched, covered at first by the 

 cinereous conidial hvmenium. Fertile head subglobose, rouahened 



/ . C3 



by the prominent peri thecia, acutely conical and sterile at the apex. 

 Asci cylindrical, short-stipitate, 8-spored. Sporidia broadly ovate 

 very obtuse, straight, obliquely uniseriate. brown, becoming black and 

 opake, surrounded by a thick, hyaline, gelatinous stratum, 40x20 IJL, 

 On muddy ground mixed with manure. Missouri (Engelman). 



We have seen no American specc. and cannot say whether thi> 

 is the genuine X. pedunculata, (Dicks.) or var. pust'Ua, Tnl. Sel. Carp. 

 IT. p. 18, tab. II, figs. 1-28, which is the Xylaria Tulasnei, Nitschkr 

 Pyr. Germ. p. 8. 



SUBORDER. HYSTER1ACE.E. 



Perithecia simple, erumpent-superficial. oblong or linear, mem- 

 branaceous, coriaceous, or carbonaceous, rarely subcarnose at first 

 becoming black, opening by a narrow crack or cleft extending along 

 the entire length of the perithecium. A-ci paraphysate, 4-8-spored, 

 (Sacc: Syll. II, p. 721). 

 85 



