664 



XYLARIA Hill. 



Hist. Plant, p. 62 and 63. 



Stroma erect or ascending, cylindrical, clavate, filiform, often 

 compressed, simple or branched, of a corky, leathery or fleshy consist- 

 ence, black outside, mostly white within. Perithecia sunk in the 

 stroma but more or less prominent, globose or ovate, with a short neck 

 and a papilliform ostiolum. Asci cylindrical, 8-spored. Sporidia 

 elliptical orfusoid, continuous, black, mostly inequilateral. 



A. Head fertile throughout. (Xyloglossa.) 



* Head clavate; stipe slender, elongated. 



X. euglossa, Fr. Nov. Syinb. p. 124. 



Stroma clavate, bare, thickened above, obtuse, smooth, argilla- 

 ceous, black-punctate from the minute ostiola, light-cinereous in the 

 center, darker towards the surface. Perithecia entirely immersed, 

 subglobose, black. Stipe slender elongated, smooth, becoming black. 

 Asci linear. Sporidia oblong, brown. 



In Costa Rica (Oersted). 



Has the form of Geoglossum difforme, but larger, 3 inches or 

 more high; when dry, often arcuate-incurved or twisted, and very hard, 

 almost like stone, longitudinally rugose when dry. In the form and 

 color of the club (which is of a dirty pallid hue) it resembles Clavaria 

 Jigida, thickened above and obtuse, properly black, but apparently 

 smeared over with alutaceous-clay color, subdistinct from the stipe. 

 Sporidia uniseriate, subacute at the ends, occasionally curved. 



X. olobapha, Berk, (in Herb. Kew), Cke. in Grev. XI, p. 84. 



Stroma erect, clavate, rufous, attenuated below into a short, slen 

 der, glabrous, equal stipe. Perithecia globose, black. Ostiola papilli- 

 form, flattened. Asci cylindrical, stipitate. Sporidia lanceolate, 

 straight or curved, brown, 20-22 x 8| /i. 



On trunks, Brazil and Mexico. 



X. rhopalodes, (Kunze). 



Sphceria rhopalodes, Kze. Kxs. 



Xylaria rhopalodes, Mont. Ann. Sci. Nat. 1855, III, p. 99, Sacc. Syll. 1234. 



This is said to be found in Mexico, Carolina and Texas, but no 

 description is given except that the asci are cylindrical, short-stipitate, 

 8-spored. Sporidia 8-10 p. long. 



X. protea, Fr. Nov. Symb. p. 125. 



Stroma suberose-indurated, lanceolate, obtuse, corrugated, bare, 



