352 



Mycologia 



Ascochyta Smilacis Ellis & Mart. Amer. Nat. 16: 1002. 1882. 

 Stagonospora Smilacis (Ellis & Mart.) Sacc. Syll. Fung. 3: 450. 

 1884. 



Phyllosticta Smilacis Ellis & Mart, in Herb. 1898; in Ellis & 

 Evrht.'s N. Amer. Phyllostictas 72. 1900. 



Phyllosticta Smilacis Ellis & Ev. Bull. Torrey Bot. Club 27 : 572. 

 1900. 



Prof. Peck described this species on Smilax rotundifolia as 

 follows : " Spots orbicular, 2 to 3 lines broad, arid, whitish with 

 a dark border; perithecia epiphyllous, subhemispherical or de- 

 pressed, black, often disposed in a circle near the margin of the 

 spot; spores oblong or subfusiform, colorless, .0008 in. to .0012 

 in. long, about .0003 in. broad." 



Ellis & Ev. op. cit. "Perithecia epiphyllous, 110-150^; 

 sporules oblong-fusoid, hyalin, mostly nucleate, subinequilateral, 

 12-15X3.5-4/^" adding that it is found on various species 

 of Smilax and varies considerably in the size and shape of the 

 sporules. 



There are before me specimens, including types or co-types, 

 from over twenty widely separated collections bearing one or 

 other of the above names. The spots are, except in Fungi Columb. 

 4247, uniformly whitish becoming dingy near the rusty-brown, 

 raised border. On a Niagara specimen out of one spot spores meas- 

 ured 9X6^, 10 X 5^, 15X8/X and 18 X 6/x. On a leaf of one 

 of the type collections they ranged from 9X5-5/* to 24X6//,; 

 in another spot on the same leaf they were pretty uniformly 

 7-9 X 6-7 jjl. On the spots the pycnidia are mostly sub-circinate 

 but often more or less scattered and mostly but not always epi- 

 phyllous. The sporules are sub-globose to oblong-fusoid or in- 

 equilaterally elliptic, hyaline, grumous, often nucleate, sometimes 

 appearing septate, 7-24 X 4-8 /x, usually within 8-12 X 4—7 



20. Macrophoma Salicis Dearn. & Barth. sp. nov. 



Pycnidia thickly distributed, sometimes gregarious or seriate, 

 cortical, rupturing the cuticle in a cleft or stellate manner, .25-5 

 mm. in height and diam. Ostiola thick, short or longer up to 

 .3 mm. Conidia hyaline, continuous, ovoid to oblong or fusoid, 

 12-16 X 6-9 /X. 



