709 



Perithecia linear, mostly lying parallel, straight or subflexuous, 

 flattened above, immersed in the wood with the flattened apex exposed 

 and slightly prominent ; lips incurved, leaving a narrow crevice or 

 furrow between them, lg-2J mm. long. Asci clavate-oblong, 65-70 x 

 15 jut, 8-spored, subsessile, overtopped by the abundant, filiform par- 

 aphyses, which are blackened and glued together at their tips. Spo- 

 ridia subbiseriate, ovate-elliptical or subclavate, often a little curved, 

 5-7-septate and muriform, yellowish-hyaline, 20-22 x 8-10 fi. Hys- 

 terium. Verbasci, Schw. Syn. N. Am. 2093, has the sporidia a little 

 more attenuated below and the lips of the perithecia rather more dis- 

 tinctly closed, perhaps because the specc. are not as old. 



On weather-beaten wood, Carolina and Pennsylvania (Schw.), 

 Ohio (Morgan), on wood of Quercus and Persea, Texas and Florida 

 (Ravenel), on old stems of Verbascum Thapsus, Bethlehem, Pa. (Schw.). 



Without a microscopical examination, the specc. of H. Verbasci 

 and H. prcelongum, in Herb. Schw. can not readily be distinguished 

 from Glonium lineare, Fr. It is doubtful whether If. Verbasci 

 should be separated from H. pradongum, even as a variety ; it cer- 

 tainly can not be specifically distinct. The specc. issued in N. A. F. 

 1321, as Hysterium lineolatum, Cke., are mostly Gloniella Curtisii. 

 (Duby), but H. lineolatum also occurs on several of them. 



H. Lonicerse, (Phil. & Hark.) 



Hysterium Lonicerce, Phil. & Hark. Grev. XIII, p. 23. 

 Gloniopsis Lonicerce, Berl. & Vogl. Add. Sacc. Syll. I, p. 270. 



Scattered or gregarious, elliptical or oblong-lanceolate, 500- 

 1200 fi long, parallel, subprominent, striate or smooth; lips subpromi- 

 nent, open at maturity. Asci cylindric-elavate, 8-spored. Sporidia 

 elliptical or subpyriform, muriform, hyaline, mostly with a gelatinous 

 coat, 20-30x7-11 //, with indistinct paraphyses. 



On decorticated branches of Lonicera, California (Harkness). 



H. insignis, Cke. & Hark. Grev. XIV, p. 10. 



Perithecia gregarious, erumpent, oval or elliptical, |-1 mm. long, 

 black, subshining; lips closely approximated. Asci clavate, 8-spored. 

 Sporidia lanceolate, acuminate at the ends, constricted in the middle, 

 5-7-septate and muriform, hyaline, 20 x 10 //. 



On wood of Acacia, California (Harkness). 



H. Smilacis, (Schw.) 



Hysterium Smilacis, Schw. Syn. Car. 241. Syn. N. Am. 2096. 

 Hypoderma Smilacis, Sacc. Syll. 5801. 

 Exsicc. Ell. & Evrht. N. A. F. 2d Ser. 2375. Rehm Asc. 318 Thum. M. U. 662. 



Perithecia erumpent, surrounded at base by the ruptured epi- 



