lOlG] 



BURT THELEPHORACEAE OF NORTH AMERICA. VII 325 



The above description is based on the Schweinitzian type 

 and presents the characters of a rare species which has not 

 been distinguished heretofore from the following S. pseudo- 

 pedicellatum, a thicker, larger, common, and widely distri- 

 buted species. S. Schiueinitzii is characterized by its erect 

 filiform paraphyses, curved to hook-shaped, spore-bearing 

 organs, and small spores, although it is not certain that full- 

 sized mature spores have yet been seen. 



I refer to ^S*. Schweinitzii a collection made by P. L. Ricker 

 on Persea, in Georgia, during August, because this specimen 

 has small probasidia, hook-shaped, few-celled, hyaline, spore- 

 bearing organs, and spores 7 X ^Vzf^'j but in this specimen 

 only a few paraphyses are present, the probasidia and hook- 

 shaped organs are at the very surface of the hymenium, and 

 small, globose organs 5/* in diameter are occasionally pres- 

 ent, borne laterally on the hyphae in the lower part of the 

 hymenial layer. I have not studied with the microscope the 

 Cuban specimen of S. pedicellatiim, collected by C. Wright, 

 one of the species upon the structure of which Patouillard 

 founded the genus Septobasidium. He found this specimen 

 to have probasidia and hook-shaped organs. Both proba- 

 sidia and the hyaline organs are described as larger than 

 they measure in the Schweinitzian type. In the Cuban sj^eci- 

 men the probasidia are stated to be 20/* in diameter or 20 

 X 15iu, and the hook-shaped organs as 35 X 10m, and the 

 former persist full size, with the septate hook-shaped organs 

 connected with them like a promycelium with its teleutospore. 

 These differences indicate that the Cuban specimen belongs 

 to a species distinct from TJielephora pedicellata Schw. It is 

 necessary to substitute a new specific name for ''pedicellata" 

 in making the transfer of Thelephora pedicellata Schw. to 

 Septobasidium, because there is already a valid Septobasi- 

 dium pedicellatum. 



Specimens examined: 

 North Carolina: Schweinitz, type (in Herb. Schw.). 

 Georgia : Bugaboo Island, Okeef enokee Swamp, P. L. Ricker, 



921. 



