262 



Mycologia 



9. Corynelia jamaicensis sp. nov. 



Corynelia clavata (Linnaeus) Saccardo p.p. in Hennings, Hedw. 

 37:281. 1898. 



Type: Flora Jamaicensis No. 6629 (material collected Aug. 10, 

 1896 by Wm. Harris on Podocarpus purdieana near the hotel 

 "Holly Mount" on Mount Diablo, Jamaica). 



(Figures 6, 7) 



Stromata scattered, usually circular to elliptical in outline, 

 sometimes more elongated, 1.5-3 X 1 -5—7 mm., subcarbonaceous, 

 hypophyllous, not observed to be caulicolous or fructicolous, bear- 

 ing 20-100 or more crowded perithecia ; perithecia forming on 

 the buried stroma and erumpent when small, or developing later 

 on the raised stroma; young perithecium as in C. oreophila; 

 mature perithecium, large, reaching 1.5 mm. in length, approxi- 

 mately 0.5 mm. in lateral diameter, usually trisulcate and tri- 

 lobed as in C. oreophila; quadrilobed individuals more common 

 than in that species, and pentilobed individuals occasionally 

 found ; bilobed individuals never observed ; dehiscence taking 

 place along all the furrows so that a quadrilobed individual after 

 dehiscence has a four-pronged apex ; asci clavate to ovate, 

 1 5-27 X 28-42 jx (p. sp.), typically (80%) 3-spored (the spores 

 in a single row or arranged to form a triangle), approximately 

 15 per cent, of the asci 2-spored, asci containing a larger number 

 of spores uncommon, an 8-spored ascus not observed; spores 

 1 1— 1 5ft in diameter; imperfectly formed spores more minute and 

 usually flattened. 



Parasitic on Podocarpus purdieana in Jamaica and known 

 only on this host from the type locality. To be expected in other 

 islands of the West Indies and on the mainland of South and 

 Central America. 



In general appearance of stroma and perithecium resembling 

 C. oreophila. Characters of asci and spores practically identical 

 with those of C. portoricensis, the tendency toward i-spored asci 

 being perhaps slightly more pronounced in this species than in 

 C. portoricensis. 



Material Examined 



Jamaica: Flora Jamaicensis No. 6629 (type material from the 

 herbarium of Wm. Harris in Jamaica communicated by S. F. 



