1916] 



BURT THELEPHORACEAE OF NORTH AMERICA. VII 339 



Type : type and cotype in Kew Herb, and Curtis Herb. 



Fructification resupinate, effused, coriaceous, at first drab 

 or Front's brown, then Chaetura-drab, the hymenial surface 

 reticulated with obtuse veins, pulverulent; in 

 structure 700^1 thick, with the hyphae colored, 3-4fi 

 in diameter, short-celled, loosely interwoven or 

 rising obliquely from substratum to hymenial sur- 

 face and there densely interwoven longitudinally 

 and bearing laterally brown, globose or pyriform 

 bodies 13-15 X 10-13/*, and slightly colored proba- Fig. lo 

 sidia of the same size and form ; a single spore in - retiforme. 



' ^ a, probasi- 



the hymenial surface is hyaline, even, curved, 15 dium; n, coi- 

 X 4ft; no spore-bearing organs found. ^^ sporef^^x 



Fructification 1-4 cm. long, about 700/* thick. ^^^ 



On living branches of apple, pear, peach, Gary a. District 

 of Columbia to Louisiana and Cuba. November to February, 

 producing probasidia in February. 



S. retiforme resembles a small foliaceous lichen in habit. 

 It may be distinguished from our other species by its drab to 

 brown color and reticulately veined hymenial surface. The 

 spore characters stated are uncertain for only one spore 

 was seen. 



Specimens examined: 

 Exsiccati : Ellis & Ev., N. Am. Fungi, 2604. 

 District of Columbia: Washington, comm. by Mrs. F. W. 



Patterson. 

 Georgia: Fort Valley, comm. by Mrs. F. W. Patterson. 

 Alabama: Forestdale, C. C. Woodward, comm. by J. B. 



Eorer; Abbeville, 8, T. Slaton (also in Lloyd Herb., 3460, 



and in Mo. Bot. Gard. Herb., 5166). 

 Louisiana: St. Martinville, A. B. Langlois, 2233. 

 Cuba: C. Wright, 288, cotype (in Curtis Herb.). 



14. S. Spongia (Berk. & Curtis) Patouillard, Soc. Myc. 

 Fr. Bui. 16:181. 1900. 



Thelephora Spongia Berk. & Curtis, Linn. Soc. Bot. Jour. 

 10:330. 1868; Sacc. Syll. Fung. 6:542. 1888. 



Type: type and cotype in Kew Herb, and Curtis Herb. 



