693 



or nearly so, each cell with a single nucleus, 18-25 x 7-!) « (27-33 x 

 8-10 //, Sacc. and Karst.) 



Common on liai'k of various deciduous trees. 



Very variable in the shape of the pcrithecia, which in the typical 

 form are short and broad, suhelliptical, but elon<>'ated-()l)lotig forms are 

 not uncommon, tliough in this respect the Kui'opean sjjccc. show less 

 variation than the American. We do not find the sporidia as hir<ie as 

 stated by Sacc. — mostly about 22 x 7 it. If. bctnliymnn, Schw, is 

 uivcn as a synonym from an examination of specc. in Herb. Scliw. 



H. ti'iiiieafiihim, C. ^ P. Hisc. of the U. S. p. 33. 



(Jregarious, superficial, elliptical, al)ru[)tly loundcd at the ends, 

 straight, longitudinally striate, flattened along the a])ex, 1 x J nim.^ 

 lips closely connivent. Asci clavate, shortly stij)itate. Sporidia 

 liiseriate, fusiform, rounded at the ends, triseptate, ultimate cells short- 

 er, hyaline, ccnti-al cells brown, 35-40 x 10 //. 



On wood. N. Yoi-k (Peck). 



This can hardly be more than a largc-spored var. ofll.pulican: 



H. an^iistatuin, A. & S. Consp. j). 55. 



If.pulicaie, b. aiigustatum, Fr. S. M. II, p. 5S0. 

 liysteriiim viilgare, De Not. Pir. Istr. p. iS. 

 //ys/en'iiin Juicalypti. Phil. & Hark. Grev. XIII, p. 23. 

 Kxsicc. Rehm Asc. 214. — Sydow, M, March. 2426. 



Perithecia gregarious or crowded, more or less immersed in tin* 

 l)ark or oi'ten sui)erficial, mostly elongated or linear, nearly smooth, 

 lilack, |-1J mm. long, lips more or less open. Asci 75-80 x 12-15//. 

 Sj)oridia sul)bisei'iate, oblong, obtuse, 3-septate, all the cells I)rown, 

 and usually with a single nucleus, 15-22x6-7 /i(18-27 x6-7 /x Sacc). 



On wood, Vermilion Lake, Minn. (Ilolway), on bark anil wood of 

 dead limbs, Carolina and Pennsylvania (Schw.) 



In Schw. Syn. N. Am. the following varr. ai-e mentioned as fbuiul 

 in Pennsylvania: — var. lenticulare, Fr., round or elliptical, minute, 

 <niooth, only half as large as the normal form; var. Icvve, Pes., ellipti- 

 cal, elongated, swollen, smooth; var. Jnghindiii, Schw., ovate, black, 

 h'ps swollen, subdistant, bistriate; frequent on bark of JiigJam, Penn- 

 sylvania. This differs from //. pulicare, Pers. in having the .spoi'idia 

 -■wollen and all the cells unifbrndy brown, with the peritl'ocia less 

 prominent and mostly smaller and more elongated. Frie • k I)uf)y 

 make it a mere var. of //. /)«</«c«re. Specimens of Ifysfei iiun En- 

 'iihjpti., Phil. & Hark, (from Harkness), do not differ in any way 

 Irum this. 



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