613 



D. tuberculif6rinis, Ell. Bull. Torr. Bot. Club, VIII, p. 124 



Stroma discoid, contracted below, orbicular or subelongated, 

 f-1^ mm. diam., sometimes subconfluent, black, easily deciduous. 

 Ascigcrous cells periplierical, 80-110 /i diam., crowded. Ostiola 

 obscure or minutely punctiform, leaving the surface of the stroma 

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

 IS fx, 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, 13-1 5.x 

 6-7 fi, mostly a little curved. 



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

 Harkness). 



D. collecta, (Schw.) 



Sphcsria 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 Lonicsm, Cke. Grev. XIII, p. 66? 

 Exsicc. Ell. N. A. F. 168. 



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

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

 100 n diam. peripherical. Ostiola punctiform, barely visible under a 

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

 oblong, uniseptate, 18-24x8-9 //, yellow (hyaline at first), four in an 

 ascus. 



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

 Viburnum, Salvia, Newfield, N. J., and on Iva frutescens and Mac- 

 lura, New York; on Ulmus, Delaware. 



We have seen no specc. of D. Lonicercs, 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. P. 168. 



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



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

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



On twigs of Colutea, Pennsylvania (Michener). 



Specc. in our Herb, from Parlow have the outward appearance of 

 D. tetraspora, but are without fruit. 



D. Berberidis, (Wahl.) 



sphcsria Berberidis, Wahl. Flor. Suec. Ed. II, p. io6a 

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

 ■Exsicc. Fckl. F. Rh. 1817.— Kze. Fungi Sel, 159. 



