652 



various size and shape, 3-4 mm. across or often confidently seriate, 

 3-4 cm. or more by J-l 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 tolerably 

 abundant, ovate-oblong and subnavicular, pale brown, 6-8 x 3-3 h /a, 

 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, very 

 minutely granulated, the upper part only exposed. Ostiola minute, 

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



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

 fornia (Harkness). 



H. crustaceum, 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 the 

 surface and within, more or less effused, tolerably thick, sooty black or 

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

 thecia which are about J mm. diam., globose, and either densely 

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

 apices with distinct papilliform ostiola free, with only their bases 

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

 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 p.. 



On decorticated wood, British Columbia (Macoun). 



Macoun's specc. agree accurately with the above description, 

 except the perithecia are subferruginous-pulverulent, and the sporidia 

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

 perithecia (stromata) 2-5 x 2-3 mm., or interruptedly confluent for 

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

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





