32 



D. oreopMlum, Speg.* Mich. II, p. 160. 



Perithecia gregarious or scattered, superficial, very minute, 110- 

 120 fx, globose, clothed on all sides with short, dark hyph», scarcely 

 equaling the diameter of the perithecia. Ostiola scarcely discernible. 

 Texture thin, membranaceous, dark brown. 'Asci cylindric-clavate, 

 rounded aljove, narrowed below into a very short, nodulose stipe, par- 

 aphysate, 8-spored, 60-65 x 20 [i. Sporidia ovoid, uniseptate and con- 

 stricted in the middle, 15-16 x 7-8 //, the upper cell larger, hyaline. 



On living leaves of Rhododendron Lapponicum, Godhavn, etc., 

 Greenland. 



D. Ellisii, Sacc. Syll. 241. 



Meliola maculosa, EU. BuU. Torr. Bot. Club, VIII, p. 91. 

 Venturia maculosa. Ell. N. A. F. 200. 



Spots black, suborbicular, 2-3 mm. diam. Perithecia black, glo- 

 bose, 90-115 ;/, borne upon a brown, flexuous, remotely septate, 

 mycelium, with a circle of straight, black setse at the base; structure 

 cellular, sets 100x5 /i, apices entire. Asci cylindrical, 8-spored, 

 50-60 fj. long. Sporidia ellipsoid, didymous, hyaline, mostly uni- 

 seriate, 10-12 x4 /z. 



On fallen leaves of Andromeda racemosa, Newfield, N. J. 



I), melioloides, (B. & C.) 



Asterina melioloides, B. & C. Grev, IV, p. lo, 

 (Meliola Baccharidis, B, & Rav. Grev. IV, p. ,158) ? 



Perithecia brown-black, globose, rugulose, astomous, epiphyllous, 

 clustered, 80-95 fi, borne on brown, radiating hyphse. Asci cylindric- 

 clavate, 8-spored, 33-40 x 10-13 /i. Sporidia hyaline, subcymbiform, 

 uniseptate, 1-2-seriate, 10 x 3 fi. 



On leaves of Baccharis halimifolia, Florida (Martin). 



D. orbiculare, (B. & C.) 



Asterina orbicularis, B. & C. Grev. IV, p. 9, Cubau Fungfi, 784, 

 Exsicc. EU. N. A. F. 1362. 



Mycelium black, branching, remotely septate, adnate, forming 

 orbicular, ci'ustaceons patches, \-l cm. diam. Perithecia black, sub- 

 globose, 80-100 (1 diam., amphigenous, but those on the upper surface 

 are of a dull black color, and often sterile. Spreading from the apex 

 to the circumference, are numerous moniliform threads of subglobose, 



*Tliis and all other Greenland species hereafter noted in this work were collected along 

 the western coast of Greenland from 1812-1886, mostly by the various expeditions sent out to 

 explore that country ; viz. The Nares Arct. Exp., 2d Dutch North Polar Exp., Hammer's 

 Exp.,iDauish Exp. 1876-79, Fylla Exp. 1884-86, etc., etc., and described by Prof. E. Rostrup in 

 his "Fungi Groenlandiae," published at Copenhagen in 1888. 



