501] MELIOLA IN PORTO RICO — STEVENS 33 



Capitate hyphopodia small, alternate, not crowded, 1 per cell, cells 

 about ^OfjL long, head cell ovoid or truncate, apex often thickened, 17 x 

 lOfi, the basal cell varying from very short to Ifx long. Mucronate 

 hyphopodia few and scattered, narrow, alternate, bottle-shaped, 27 x 7fi. 

 Perithecial setae few, about 3-10, about lOO/u, long, Ifx thick, black 

 throughout, contorted, usually spirally twisted, sometimes coiled into 

 close knots; tips obtuse. Mycelial setae abundant, straight or slightly 

 curved, very long, about 800/^, 9/x thick, dark throughout, simple. 



. Perithecia 150/a, rough with conic protuberances. Asci 2-4- 

 spored ; ascospores 4-septate, pale brown, very long and narrow, slightly 

 constricted, obtuse, 48-51 x 7-9/1.. 

 On Palicourea crocea (Sw.) Roem. Fig. 31. 



Lajas, June 17, '15, 71^ (type), June 17, 15, 7196. Las Marias, 

 July 10, '15, 8138, 8162. 

 On Palicourea domingensis (Jacq.) DC. 



Piedras, Aug. 12, '15, 9320. 

 On Palicourea riparia, Benth, 



Mayaguez, June 25, '15, 7403, 7019. 



On Palicourea sp. 



Mayaguez, Apr. 30, '13, 979. May 3, '13, 1131. 



This Meliola is remarkable in several ways. Possessing both peri- 

 thecial and mycelial setae it falls within a class of very few representa- 

 tives indeed. The ascospores too, are distinctly unique, being much 

 more slender than those of any other Meliola that I have seen. 



40. Meliola circinans Earle 



Bull. N. Y. Bot. Gard. 3 : 308, 1905. 

 On Mariscus jamaicensis (Crantz) Britton. 



San Juan, Aug. 15, '15, 9221, Aug. 9, '15, 9203. Manati, Nov. 25, 

 '15, 5286. 



The type collection was made by Heller, No. 6384, on Rynchospora 

 aurea. 



Our specimens clearly agree with the type of Earle especially in 

 the possession of both perithecial and mycelial setae of different lengths. 

 The capitate hyphopodia are quite variable and though the circinate 

 forms do occur I would not attach so much importance to this character 

 as Earle seems to do. The sub-apiculate ascospores, however, are quite 

 distinctive and the thickness of the mycelium and of the setae clearly 

 separates this species from M. cyperi. 



