Chromocreopsis striispora Stevenson sp. nov. 



Stromal scattered, tubercular, subglobular to flattened, constricted 

 at the base, often substipitate, 1-3 mm. dia., less in height, brick red 

 at first, duller in dried specimens, with the black necks of the peri- 

 thecia protruding; asci cylindric; spores uniseriate, dark brown, 

 elliptic-ovoid, ends rounded, 1-guttulate, 20-22 X 5-7 mu., striate, 

 striations showing best when spores are partially mature. 



PoBT;0 Rico. — On dead cane stalk, Grurabo, July, 1915, 2026 (type). 

 Rare, This species is characterized b}^ the shape and striations of 

 the spores. It was first examined by Dr. F. J. Seaver, who suggested 

 the name. 



GiBBERELLA PULiCARis (Fries) Sacc. 



Porto Rico. — On dead cane, Rio Piedras, April, 1911, 4053, Jan., 

 1912, 4169, Sept., 1912, 4586, Jan., 1914, 1179; Las Monjas, April, 

 1911, 4048. Also collected on Panicum harhinode and Eriochloa siib- 

 glahra. (PL XXVII, fig. 14-15; pi. XXIII, fig. 2.) 



The minute, ovoid perithecia of this species are superficial, gen- 

 erally seated on a stroma, black to the unaided eye, but blue with 

 transmitted light. 



Hypocrea rufa (Pers) Fries. 



Porto Rioo. — On dead cane stalks, Rio Piedras, Jan., 1914, 1199, 

 Feb., 1914, 1322, 1345. Also collected on dead wood. (PI. XXIII, 

 fig. 1; pi. XVII, fig. 1-2.) 



The stromata of this species are subhemispheric, irregular at times, 

 2 mm. to 1 cm. in diameter, brick red, darker mth age, and rough- 

 ened by the necks of the perithecia. 



Nectria plavociliata Seaver. 



Porto Rico. — On dead cane stalks, Rio Piedras, Jan., 1914, 1213, 

 Feb., 1914, 1333, 1346. Also collected on dead wood. The less com- 

 mon of the Nectria s. Characterized by a covering of sulphur-yellow 

 hairs. (PI. XXVIT. fig. 16-18.) 



Nect.ria laurentiana Marshal. 



With stromata somewhat broad, convex, superficial, 1-2 mm. dia., 

 seated on a hyaline web, delicate and evanescent ; parenchyma white ; 

 l)erithecia densely caespitose, globose, 250-350 mu. diam., strongly 

 rugose to subsquamulose, ferruginous; asci 8-spored, oblong-cylin- 

 drical, attenuate-truncate, finally obtuse, subsessile , 60-70 X 7-8 mu., 

 aparaphysate ; spores uniseriate, equilateral, 1-septate, constricted at 



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