1920] 



BURT THELEPHORACEAE OF NORTH AMERICA. XII 169 



Mexico: Trap, de la Conception, Liebman, type of Stereum 

 radians (in Herb. Fries); Jalapa, W. A. & E. L. Murrill, 

 343, comm. by N. Y. Bot. Gard. Herb, (in Mo. Bot. Gard. 

 Herb., 55477). 



47. S. rameale Schweinitz, Naturforsch. Ges. Leipzig Schrift. 

 1 : 106. 1822 (under B. Sterea of Thelephora). Plate 5, fig. 48. 



Thelephora hirsuta Fries, Elenchus Fung. 1 : 178. 1828, 

 but not of Syst. Myc. 1 : 439. 1821. T. hirsuta ramealis 

 Schweinitz, Am. Phil. Soc. Trans. N. S. 4: 167. 1832 

 Stereum complicatum Fries, Epicr. 548. 1838; Sacc. Syll. Fung. 

 6:579. 1888; Massee, Linn. Soc. Bot. Jour. 27:178. 1890. 

 S. radians of Morgan, Cincinnati Soc. Nat. Hist. Jour. 10: 

 194. 1888, but not S. radians Fries. Telephora lobata Bertolo- 

 nii, Accad. Sci. Bologna Mem. I. 7: 360. pi 19. f. e-g. 1856; 

 Underwood & Earle, Ala. Agr. Exp. Sta. Bui. 80: 232. 1897 

 Stereum Bertolonii Saccardo, Sacc. Syll. Fung. 11: 120. 1895. 



Illustrations: Berkeley & Broome, Linn. Soc. Bot. Trans. 

 2: pi. 14. f. 12-14. 1883; Bertolonii, loc. cit. 



Type: in Herb. Schweinitz and in Herb. Fries. 



Fructifications coriaceous, thin, rigid, efTuso-reflexed, rarely 

 resupinate, with the reflexed portion consisting of small, umbo- 

 nate pilei, which are sometimes subdivided into 

 lobes, the pilei or lobes drying folded together or 

 crisped, fibrose-strigose, becoming glabrous on the ^ 



marginal portion, shining, with innate fibers "^ 



radiating from the base, cinnamon-buff to hazel, 

 more or less zoned; hymenium even, glabrous, lg ' ' 

 light buff to cream-buff; in structure 300-450 n Spores x 650. 

 thick, composed of densely, longitudinally ar- 

 ranged, hyaline hyphae 3-3 f fi in diameter, colored conducting 

 organs 3-3 n in diameter occasionally present; no cystidia 

 nor gloeocystidia; spores white in spore collection, even, 

 slightly curved, 6X2-2J /*. 



Fructifications sometimes covering areas only 5-10 mm. in 

 diameter, and gregarious, at other times irregularly confluent 

 over areas up to 3 cm. broad and 10 cm. and more long; indi- 

 vidual pilei 2-10 mm. broad, 3-10 mm. long. 



On dead twigs and stumps of oak and other frondose species. 



