705 



H. vnlvatiiiii, (Sehw.) 



Hysti'tiiim viilvalnm, Scliw. Syii. N. Am. 207a. 

 /ly.sleyngraplnum vuhaliim, Sacc. Syll. 5774. 

 Exsicc. Rav. F. Car. II, 4S.— RIl. N. A. K. 76.— Thutii. M. U. iSi.— Rchni Asc. 315. ilii all 

 these under the wamc o( fi. Jlexuaum, Schw.). 



Poi'itliccia onin)poiit-suj)<.'rficinl. scattered or jri'eirarious, 1-3 niin. 

 loiiu'. straight or flexuons: lips at fii-st closed, then open so as to leave 

 a wide furrow hetween them, mostly with 1-2 deep strijv on each side, 

 often apparently doul>le. i. e., one set within another. Asci ol)lon<>:- 

 clavate, ol)tuse, paraphysate. 8-spored, p. sp. 100-112x20-25 it. with 

 a stipe 30-35 // lonir. Sporidia irreirulai'Iy l>iseriate, broad-fusoid. 

 slijrhtly curved, imdti- (10-15-) septate, and muriform, strongly con- 

 stricted in the middle, the ujtircr part liroader, olive-brown, 50-62 x 

 15-20 /i. 



On dead, dry, mostly decorticated limbs of oak and other decid- 

 uitis trees, common. 



The species here descrilted as H. viilvatinn. Schw.. is certainly 

 the Ifysterium vulvatum of the Schweinit/ian Ilerltaiium, but whether 

 the specimen so labeled in that collection is the Ilyster/'um vulvatwn 

 of Schw. Synopsis X, Am. 2072, may be o)>en to some doubt. The 

 specc. in the Kxsiccati altove referred to, certainly airree well with the 

 diagnosis o\' H.Jiexnosmn, Schw., in his Syn. Car. No. 249. 



H. I^sqiiereiixii, (l)uby). 



Ifysterium /.i-si/tifrfiixii. Duby, Hyst. p. 29, 



(Hysteiiiim fihUfdiim. Ger. Hull. Torr. Hot. Club, V, p. 26)? 



Perithecia scattered or ajrj^iregated, black, faintly rugulose under 

 tile lens, ovate or ovate-oblong-, or sublinear. often liexuous. narrowed 

 towards each end. subacute: lips swollen, partially open so as to leave 

 a distinct cleft between them. Asci cylindric-clavate, 80-100 x 12-15 /i. 

 paraphysate, 8-spored, subsessile. S[)oridia subbiseriate, ovate-oblong, 

 slightly constricted in the middle, obtuse, 5-7-scptate and muriform. 

 pale brown. 20-25x8-10//. 



On corticated branches of Ghditschia triacantlios, Ohio (Les- 

 ijuereux). Louisiana (Langlois). 



The diagnosis is from the Louisiana specc. Tiiero is sometimes a 

 distinct furrow on each side of the lips and parallel with them, but 

 <tl(en this is entirely winting. Il.fihi'isedum. (Jerard, probalily lie- 

 longs here, but we have .^eeii no specimens. 



H. iiromiiiens, (Phil. & Hark.) 



Hysteiium piomhii-ns, Phil. & Hark. Bull. Cnl. Acntl. Feb. 1SS4, p. 25. 

 nysleiium O'unot/ii, Phil. & Hark. 1. c. 



/f\s/f>o,vriif)/iti4Ui f»(>mine)is. Herl. ifc Vojjl, Add. Sacc. Syll. I, p. 270. 

 Kxsicc. F;11. M: Fvrht. N. A. F. 2d Ser. 2064, 



Perithecia erumpent-superficial, gregarious or .scattered, elliptical 



8!) 



:;ii; 



r }: 



':-.' 



