613 



D. tuberculiformis, Ell. Bull. Torr. Bot. Club, VIII, p. 124. 



Stroma discoid, contracted below, orbicular or subelongated, 

 J-1J mm. diam., sometimes subconfluent, black, easily deciduous. 

 Ascigerous cells peripherical, 80-110 /i diam., crowded. Ostiola 

 obscure or minutely punctiform, leaving the surface of the stroma 

 nearly smooth. Asci clavate-oblong, abruptly stipitate, 55-65x13- 

 15 /Jt, 8-spored. Sporidia biseriate, ovate-oblong, hyaline and sub- 

 acute at first, finally yellow-brown and subobtuse, uniseptate near the 

 middle, lower cell a little narrower, scarcely constricted, 13-15 x 

 6-7 p., mostly a little curved. 



On dead limbs of some deciduous tree or shrub, Utah (S. J. 

 Harkness). 



D. collecta, (Schw.) 



Sphtzria collecta, Schw. Syn. N. Am. 1271. 



Dothidea tetraspora, B. & Br. Brit. Fungi, No. 899, tab. XI, fig. 39. 

 Dothidea crystallophora, B. & C. in Herb. Curtis. 

 Dothidea Lonicerce, Cke. Grev. XIII, p. 66? 

 Exsicc. F41. N. A. F. 168. 



Stromata thickly scattered, erumpent, pulvinate, 1-3 mm. diam.. 

 orbicular or elongated, brownish-black. Ascigerous cells globose, 

 100 /j. diam. peripherical. Ostiola punctiform, barely visible under a 

 lens. Asci oblong, sessile, 50 x 10-12 fi. Sporidia biseriate, clavate- 

 oblong, uniseptate, 18-24x6-9 /i, yellow (hyaline at first), four in an 

 ascus. 



On dead limbs of Madura, Lonicera, Genista, Andromeda. 

 Viburnum, Salvia, Newfield, N. J., and on Ivafrutesceiis and Mac- 

 lura, New York; on Ulmus, Delaware. 



We have seen no specc. of D. Lonicerm, Cke., which differs only 

 in its 8-spored asci, and which, if we are not mistaken, Dr. Cooke him- 

 self now considers a mere variety of this. The above diagnosis is 

 from specc. in Herb. Schw. at the Philadelphia Acad, which are the 

 same as Dothidea tetraspora as issued in N. A. F. 168. 



D. Coliiteje, B. & C. Grev. IV, p. 104. 



"Pulvinate, smooth, containing several cells. Asci clavate. Spo- 

 ridia oblong, uniseptate, constricted at the septum, 12-20 p long." 



On twigs of Colutea, Pennsylvania (Michener). 



Specc. in our Herb, from Farlow have the outward appearance '>t 

 D. tetrasj)ora, but are without fruit. 



D. Berberidis, (Wahl.) 



SphcBria Berberidis, Wahl. Flor. Suec. Ed. II, p. 1060. 

 Dothidea Berberidis, De Not. Micr. Ital. I, p. 66, 

 Exsicc. Fckl. F. Rh. 1817. Kze. Fungi Sel. 159. 



