174 



The coiiidi'd stn c uv, Helminthosporium Clavarntrunt, Oesm., has 

 conidia elliptical or elongated-elliptical, l-2-celled, l>ro\vn, 15-20 x 8 /jt r 

 borne singly or 2-3 tog-ether on the ends of the fertile hyphae. 



R. rhyncospora, Hark. Bull. Cal. Acad. Sci. Feb. 1884, p. 42. 



Perithecia densely crowded, globose-conical, superficial, covering 1 

 iii 1 areas, studded all over with short, black spines. Asci 8-spored. 



cylindrical, 96 x 10 //, with filiform paraphyses. Sporidia oval or 

 elliptical, dark brown, continuous, 15-18x9 //, often prolonged above 

 into a curved beak J-f as long as the body of the sporidium. 



On decorticated branches of Sambucus glauca, California. 

 R. foveolata, (B. & C.) 



Sphczria foveolata , B. & C. Cuban Fungi, No. 847. 

 Rosellinia foveolata, Sacc. Syll. 996. 



Perithecia globose, at length collapsing, clothed with rigid hairs, 

 M-ated on an effused, black stroma composed of hyphae with acutely 

 pointed branches. Sporidia hemispherical, foveolate, 5 /j. diam. 



Sporidia resembling the seeds of a Veronica. 

 R. arctespora, (C. & E.) 



Sphtzria arctespora, C. & EJ. Grev. V, p. 93. 



SphfEria detonsa, Cke and Sph&ria Xylaricespora, C. & EJ. Grev. VI, p. 94. 

 Rosellinia arctispora, Sacc, Syll. 984. 

 Elxsicc. E;il. N. A. F. 594. 



Perithecia gregarious or crowded, ovate, about \ mm. diaiu. r 

 clothed with a black, farinose tomentum, and with short spines about 

 like those of R. ligniaria. Asci (p. sp.) about 75x6 //, with a narrow, 

 stipe-like base. Sporidia overlapping-uniseriate, oblong-fusoid, brown, 

 subinequilateral, 12-14 x3|-4 p., resembling the sporidia of Xylaria. 



On wood of Andromeda, under the bark, Newfield, N. J. 

 R. Rattus, (Scliw.) 



Sphceria Rattus, Schw. Syn. N. Am. No. 1535. 



Sphceria ranella, B. & Rav. Grev. IV, p. 107. (sec. Cke. Grev. XVI, p. 17). 



Conioch&ta Rattus, Cke. Syn. 2789. 



Rebentischia ranella, Sacc. Syll. 2894. 



Perithecia gregarious or scattered, rather large, very fragile and 

 thin, glabrous, globose-conical, with a subobtuse, black, at length bare 

 ostiolum, which, at first, as well as the perithecium, is covered with a 

 black, densely hairy pellicle, the hairs cinereous-brown aud divergent, 

 resembling a rat-skin. When young, the perithecia are immersed, 

 with only the hairs erumpent, but finally they emerge and become 



