706 



or oblong, 1-2| x |-f mm. black, not striate; lips incurved, nearly 

 closed at first, becoming finally more or less open so as often to expose 

 the narrow-lanceolate, black or slate-colored disk, generally more or 

 less distinctly transversely wrinkled. Asci clavate-oblong, short-stipi- 

 tate, 100-115x30-35 y. (p. sp.), paraphysate, 8-spored. Sporidia 

 biseriate, broad-fusoid, uniseptate and constricted in the middle, then 

 multi- (12-15-) septate, and muriform, olive-brown, slightly curved, 

 50-60x10-12//. 



On dead limbs of Salix lasiolepis and Ceanothus, California 

 (Harkness). 



The asci and sporidia do not differ from those of H. vulvatum, 

 Schw., unless the sporidia may be a little narrower, but the perithecia 

 are more open and not striate. H. Geanothi, Phil. & Hark. (sec. 

 specc. from Harkness) does not differ in any way from H. prominens. 

 Both are erumpent-superficial, with the disk finally more or less 

 exposed, and the asci and sporidia are the same. Probably both 

 should be considered mere varr. of H. vulvatum, Schw. 



H. stygium, (Cke.) 



Hysterium stygium, Cke. Grev. XI, p. 107. 

 Hysterographium stygium, Sacc. Syll, 5775, 



Superficial, scattered. Perithecia lanceolate, black, shining, 

 smooth, |-1 mm. long. Asci clavate. Sporidia elliptical or ovate, 

 multiseptate-muriform, dark brown, 30 x 13 //. 



On bark of oak, North America. 



We know nothing of this beyond the above brief diagnosis from 

 Grevillea. 



H. elongatum, (Wahl.) 



Hysterium elongatum, Wahl. Flor. Lapp. p. 528. 

 Hysterographium elongatum, Cda. Icones, V, p. 77, tab. IX, fig. 62. 

 Exsicc. Fckl. F. Rh. 1754. Thum. M. U. 1862. 



Perithecia gregarious, seated on the dark-colored, decorticated 

 surface of the wood, oblong or oblong elliptical, straight, seldom some- 

 what curved, obtuse, prominent, mostly smooth, deeply cleft; lips 

 nearly closed, black, carbonaceous, 2-4x1 mm. Asci clavate, thick- 

 walled, 120-150x25 -fi, 8-spored, with paraphyses branched above 

 and forming a thick, brown layer (epithecium) above the asci. Spo- 

 ridia biseriate, oblong-elliptical, obtuse, seldom somewhat constricted 

 in the. middle, hyaline, becoming brown, 9-11-septate, with a longi- 

 tudinal septum, 36^40 x 12-15 }i. 



On wood, Carolina and Pennsylvania (Schw.). 



The specc. of this species in Herb. Schw. are without fruit. The 

 diagnosis is from Rehm (in Die Pilze). 





