564 



XYLARIA Hill. 



Hist. Plant, p. 62 and 63. 



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

 ■ompressed, simple or branched, of a corky, leathery or fleshy consist- 

 Mice, lilack outside, mostly white within. Perithecia sunk in the 

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

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

 'lliptical orfusoid, continuous, black, mostly inequilateral. 



A. Head fertile throughout. [Xyloglo&HU.) 



* Head clavate; stipe slender, elongated. 



X. eugl6,ssa, Pr. Nov. Synib. p. 124. 



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

 ■cous, black-punctate from the minute ostiola, light-cinereous in the 

 •enter, darker towards the surface. Perithecia entirely immersed, 

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

 \sci linear. Sporidia oblong, brown. 



In Costa Rica (Oersted). 



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

 uore high; whendry, often arcuate-incurved or twisted, and very hard, 

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

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

 u/ula, thickened above and obtuse, properly black, but apparently 

 nieaced over with alutaceous-clay color, sulidistinct from the stipe.. 

 ■Sporidia uiiiserinte, subacute at the ends, occasionally curved. 



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



Stroma erect, clavate, rulous, attenuated below into a short, slen- 

 ler, glaln'ous, eijual stipe. Perithecia globose, black. Ostiola papilli- 

 brm, flattened. Asci cUindrical, stipitate. Sporidia lanceolate, 

 traight or curved, brown, 20-22 x H^ jll. 



On trunks, Brazil and Mexico. 



X. rhopalodes, (Kunze). 



SphiEvia rhopalodes. Kze. Exs. 



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



This is said to lie found in iVlexico, Carolina and Texas, but no 

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

 i-spored. Sporidia 8-10 fi long. 



X. protea, Pr. Nov. Symli. p. 125. 



Stroma suberose-indurated, lanceolate, obtuse, corrugated, l)are, 



