324 



[Vol. 3 



ANNALS OF THE MISSOURI BOTANICAL GARDEN 



"Wj/ 



2. S. Schweinitzii Burt, n. sp. 



Thelepliora ped'icellata Schwoinitz, Natiirforscli. Ges. Leip- 

 zig Schrift. 1:108. p]. 2. f. 3. 1822; Fries, Elenclms Fung. 

 1:200. 1828; Epicr. 544. 1838; Sacc. Syll. Fung. 6:544. 1888. 

 Not Septohasidium pedicellatum Pat. 

 Illustrations: Scliweinitz, loc. cit. 

 Type: in Herb. Scliweinitz. 



Fructification resupinate, coriaceous, dry, not separable 

 from the substratum, varying from drab and cinnamon-dral) 



to wood-brown, the margin undulate, 

 whitish; in structure 3-layered, with 

 ( 1 ) a layer next to the substratum of 

 densely interwoven, colored hyphae 

 3-31/2/* in diameter, which form (2) a 

 layer of erect hyphal pillars or pedi- 

 cels each about 200-300/* long, 40-75/* 

 in diameter, about 2 to a millimeter, 

 and pass into and support at the outer 

 end (3) the hymenial layer 120-200/* 

 thick, composed of densely inter- 

 woven, colored hyphae S-Sy^fi in di- 

 ameter, of erect, flexuous, filiform, 

 sparingly branched, hyaline paraphy- 

 ses or hyphal branches about 11/2/* in 

 diameter, and, when in fertile stage, 

 of hyaline, thin-walled, erect probasi- 

 dia, pyriform to subglobose, 12 X 

 7-9/* in the type, borne on the colored hyphae ; spores simple, 

 hyaline, even, curved, 5 X 21^/* (as seen attached in the 

 type but perhaps immature), borne singly at the apex of 

 the terminal cell of a short filament 20-25 X 41/9-5/*, about 

 4 cells long, curved to fish-hook-shaped in form, which de- 

 velops from the probasidium. 



Fructifications 2 - several cm. long, 1 - several cm. broad, 

 1/3-I/2 mm. thick. 



On living branches. North Carolina to Louisiana. Fre- 

 quent in winter. 



Fig. 1 

 S. Schweinitzii. 

 a, portion of hymeni- 

 um showing paraphyses 

 and two probasidia; h, 

 spore-bearing organ and 

 spore; p, paraphysis. X 

 640. 



