the septa, 12-13.5 X 4.5-5 mu., at first strongly granulose, epispore 

 rarely subasperulate. Translation of the original. 



Porto Rico. — On dead and dying cane stalks, April, 1911, 4012;, 

 4047, 4067, Jan., 1914, 1644, 1915, 5164, March, 1916, 5102, July, 

 1916, 5637 ; Loiza. June, 1916, 5591. Common. Further study will 

 probably prove it distinct from N. Laurentiana, an African form. 

 (PI. XXVII, fig. 21-23.) 



This is a very common fungus on canes primarily injured by borer 

 or other causes, producing a white dry rot, 



Valsaria subtropica Speg. 



Porto Rico. — On rotting cane stalks, Rio Piedras, Jan. 1914, 1175. 

 Determination by ]\Irs. F. W. Patterson. The perithecia are erumpent, 

 scattered or aggregate, black, snbglobose, carbonaceous, ostiolate. 

 (PI. XXI, fig. 3^; pi. XXVII, fig. 24-26.) 



Physalospora t,ucamanensis Speg. 



Porto Rico. — On dead cane stalk, Carolina, Jan., 1915, 2520. 

 Rare. Determined by Dr. Seaver. This fungus was originally de- 

 scribed from Argentina by Spegazzinia (73) on cane leaves, particu- 

 larly the sheaths. The perithecia are minute, black and emersed 

 in the substratum. 



RosELLiNiA paraguayensis Stark. 



Porto Rico. — On rotting cane stalk, Rio Piedras, Jan., 1914, 1179.. 

 Determination by Mrs. F. W. Patterson. (PL XXXI, fig. 16-18.) 

 The black gregarious perithecia are immersed, then erumpent, and 



arc clotlKM"! with a bhick tomentose subicle. 



ROSELLINIA PT'IAERACEA (Ehrh) Fuch. 



Porto Rk-o. — On dead cane stalk. Rio Piedras, Dec, 1916, 5S53, 

 Determination by Dr. F. J. Seaver. 



The perithecia are crowded, often aggregate ci'ust-liko, superfi(dal,. 

 globular, very minutely tuberculate, smooth, ostiolate. 



Spiiaeret.la sacchari Speg. 



Spots none, or indeterminate; perithecia hypophyllous, densely 

 crowded in series, globose, 130-180 mu., smooth, immersed, ostiole 

 scarcely perforating the epidermis, not exserted, membranous coria- 

 ceous, subopaque, dark olive. Asci cylindric, 70 X 12 mu., upper end 

 obtuse, lower end, slightly attenuate, abruptly and minuately nodu- 



214 



