1916] 



BURT THELEPHORACEAE OF NORTH AMERICA. VII 



333 



Specimens examined: 

 Florida: Daytona, E, Thaxter, 75h (in Farlow Herb, and 



Mo. Bot. Gard. Herb., 43895). 

 Alabama: Auburn, F. S. Earle S C. F. Baker, also (in Mo. 



Bot. Gard. Herb., 5165). 

 Louisiana: St. Martin ville, A. B. Langlois, 3005, determined 



by Patouillard as 8. (very near) Leprieurii; Gibson, F. T. 



McLean, comm. by P. Spaulding, type some fragments 



near a specimen of another species, but having probasidia, 



etc., as drawn, taken as the type because more mature 



than other collections cited. 



8. S. jamaicaense Burt, n. sp. 



Type: in Burt Herb, and N. Y. Bot. Gard. Herb. 



Fructification resupinate, effused, coriaceous, spongy, dry, 

 thick, bister, with the subiculum bone-brown; in structure 

 with (1) next to the substratum a 

 thin layer of interwoven hyphae 

 which form (2) a layer of probably 

 oblique, weak, very slender, 

 crowded, hyphal pillars 12-20/m in 

 diameter, up to 2000/* long, with hy- 

 phae even, 4-5/* in diameter, butfy 

 brown under the microscope, di- 

 verging above to form (3) a spongy 

 hymenial layer 300-400/>t thick, with 

 hyphae which rise obliquely, are 

 loosely interwoven, and bear proba- 

 sidia laterally at the outer surface 

 of the layer and terminate in hya- 

 line or subhyaline, curved branches 

 or tips ; probasidia hyaline, subglobose or pyrif orm, 13-25 X 

 10-13/A, quickly developing into hyaline, straight, few-celled, 

 spore-bearing organs up to 60 X Hm ; spores simple, hyaline, 

 slightly curved, 13 X 5%/^i. 



Fructification larger than 6 cm. long, 2 cm. broad, 1-1 V2 

 mm. thick fractured on all sides and not showing natural 

 margin. 



Fig. 6 



S. jamaicaense. 

 h, hyphal end bearing two 

 probasidia in the surface of the 

 hymenium; a, probasidium ; &, 

 spore-bearing organ; s, spore. 

 X640. 



