33 



18. H. trnncatulura C. & P. On wood. Gregarious, superficial, elliptical, 



abruptly rounded at the ends, straight, longitudinally striate, flattened 

 along the apex (1 m. m. long, 0.5 m. m. broad), lips closely connivent, 

 asci clavate, shortly stipitate ; sporidia biseriate, fusiform, rounded at 

 the ends, triseptate, ultimate cells shorter, hyaline, central cells brown 

 (.035-.04 X .01 m. m.). N. Y. (Peck 165). 



19. H. hyalinum C. <& P. On wood of deciduous tree. Erumpent, then 



superficial, following the fibres of the wood, somewhat parallel, linear, 

 narrow, rounded at the ends (1-2 m. m. long), straight,' faintly striate ; 

 lips acute, scarcely closed ; asci cylindrico-clavate, sporidia uniseriate 

 or biseriate, fusiform, triseptate hyaline (.026-.028 x .006-.008 m. m.). 

 N. Y. (Peck 47). 



20. H. Tariabile C <& P. On old chestnut posts, &c. Erumpent, then 



superficial, following the interstices of the woody fibres of the matrix, 

 narrowly elliptical or linear and elongated, straight or flexuous, often 

 parallel, faintly striate-rugose, flattened along the apex, slightly nar- 

 rowed at each end, lips closely connivent; asci cylindrical, stipitate, 

 sporidia uniseriate, very variable in size and form, ovate or elliptic or 

 broadly clavate constricted in the center 5-7 septate, at length with 

 longitudinal divisions, dark brown. N. Y. (Peck 21). 



21. H. g'erardi C <£• P. On chestnut twigs, &c. Gregarious, superficial, 



oblong or linear, narrowed towards the ends, lying in various direc- 

 tions, straight or flexuous, or somewhat contorted (1-2 m. m.), lips 

 prominent, closely connivent ; asci clavate, sporidia biseriate, elliptic, 

 triseptate with 1-2 tranSvers^e septa, brown (.02x.01 m. m.). N. Y, 

 (Peck 123). 



22. H. thuiarum C t£ P. On Thuja. Subgregarious, superficial, perithecia 



elliptic, acuminate, elevated, almost uaviculoid, longitudinally striate, 

 blade, opaque, lips prominent, closely connivent ; asci cylindrical, 

 sporidia broadly lanceolate, obtuse 3-5 septate, brown (.038-.04x .01- 

 .012 m. m.). N. Y. (Peck). 



23. H. viticolum C. cfc P. On stems of Vitis. Perithecia superficial, ovate 



or elliptical, sometimes elongated, rounded at the ends, in long par- 

 allel lines rarely scattered, or densely gregarious, and then flexuous, 

 dull opaque black, with a depressed line on either side, lips narrow 

 connivent; asci short, clavate etipitate, sporidia biseriate, elongated 

 elliptical, constricted in the center 3-5 septate, some of the cells trans- 

 versely septate, brown. N. Y. (Peck 124). 



BUL. Et'F. 90C. NAT. sn. (5) NOVEMBKH, lS7i>. 



