652 



various size and shape, 3-4 inoi. across or often confluently seriate 

 3-4 cm. or more by i-1 cm. wide. Perithecia in a single layer 

 rather large (the central cavity being about | mm. diam.), prominent 

 but mostly flattened above with a central papilla much as in H. annu- 

 latum, Schw., but not so distinctly annulate depressed. The specimens 

 were old and the asci dissolved, but the sporidia were still tolerablj 

 abundant, ovate-oblong aiid subnavicular, pale brown, 6-8 x 3-3^ fi 

 rounded and obtuse at the ends. The perithecia and sporidia were 

 rather larger than in Saccardo's specimen in M. V. 1470, and the 

 stroma thinner, but there can hardly be any doubt that our specimens 

 are correctly determined. 



On decaying wood of Ulmus, Missouri (Demetrio), Kansas (Kel- 

 lerman), Louisiana (Langlois). 



H. conciirrens, B. & C. Grev. IV, p. 93. 



Perithecia connate, forming a thin, black, uniform stratum, verj 

 minutely granulated, the upper part only exposed. Ostiola minute 

 papilliform. Sporidia shortly cymbiform, uninucleate. (10 x 5 ;/, Cke.) 



Carolina (Ravenel) without habitat ; on Acer macrophyllum, Cali 

 fornia ("Harkness). 



H. crustkceurn, Nitschke, Pyr. Germ. p. 49. 



(Sec. Cooke, not Sphceria Crustacea, Sow.). 

 Exsicc. Rab. F. E. 2433. 



Stroma superficial, blackening the wood around it both on tho 

 .nirface and within, more or less effused, tolei-ably thick, sooty black oi 

 sometimes gray-pruinose, formed apparently only by the connate peri 

 thecia which are about f mm. diam., globose, and either denselj 

 crowded or loosely aggregated, or even partially free, their roundec 

 apices with distinct papilliform ostiola free, with only their bases 

 united; rarely perithecia occur only half as large as usual. Asc 

 cylindrical, long pedicellate, with abundant, long filiform paraphyses 

 Sporidia obliquely monostichous, ovate, obtuse at each end, inequi 

 lateral or nearly straight, light brown, 8-10 x 4-5 //. 



On decorticated wood, British Columbia (Macoun). 



Macoun's specc. agree accurately with the above description 

 except the perithecia are subferruginous-pulverulent, and the sporidij 

 oblong-navicular. Asci 150 x 5 ^ (p. sp. 80 x 5 //). Clusters of connate 

 perithecia (stromata) 2-5x2-3 mm., or interruptedly confluent foj 

 2 cm. long. The specimen in Rab. F. E. 2433, has the peritheci; 

 more sparingly connate and black, but there is no other difference. 



