[Vol. 7 

 88 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



protruding up to 12 m, are sometimes present; spores hyaline, 

 even, 8-10 X 3-4 \ * 



Fructifications 2-10 cm. high, 2-15 cm. in diameter; stem, 

 when present, 5 mm. - 2 cm. long, 2-5 mm. thick, often sessile. 



On decaying wood of frondose species. Florida, Louisiana, 

 and West Indies to Bolivia. June to April, probably throughout 

 the year. Common. 



S. caperatum is the largest infundibuliform Stereum of the 

 Gulf states and the West Indies. Its large size, upper surface 

 with elevated, radial ridges and usually heavy tomentum of 

 coarse fibers, occurrence on wood to which it is attached by a 

 villose or tomentose disk, constitute a group of characters by 

 which the S. caperatum is readily recognized. Lloyd has pub- 

 lished in his account of this species that it has true metuloids 

 (incrusted cystidia) projecting 20-30 m, but I have found none 

 whatever in either the type or in other collections referable to 

 this species. 



Thelephora lamellataBerk. & Curtis, a species of Stereum related 

 to S. caperatum and of rather similar aspect, occurring on islands 

 of the Pacific, shows in the type specimen from Fiji Islands 

 conical incrusted cystidia 6-12 m in diameter, protruding 12-25 m, 

 and subglobose spores 3-3 X3/*. Since Lloyd cited S. caperatum 

 as occurring in Samoa, the Philippines, and Australia, it is 

 possible that his observations on incrusted cystidia of S. capera- 

 tum were based on specimens from the Pacific region really 

 referable to Stereum lamellatum rather than on the true S. 

 caperatum from the American continent. In Hedwigia 53 : 75, 

 1913, Bresadola gives T. lamellata as a synonym of ' Cladoderris 

 infundibuliformis (Kl.) Fries. I have seen no American speci- 

 mens referable to S. lamellatum. 



Specimens examined: 

 Florida: New Smyrna, A. S. Bertolet; Ocala, W. H. Long, 12373 



(in Mo. Bot. Gard. Herb., 55125). 

 Louisiana: A. B. Langlois, comm. by C. G. Lloyd, 2740; St. 



Martinville, A. B. Langlois, 2896 and an unnumbered 



specimen, C. J. Humphrey, 2518 (in Mo. Bot. Gard. 



Herb., 5111). 

 Cuba: C. Wright, 290, 509 (in Kew Herb.); Candelaria, Earle 



& Wilson, 201; Guantanamo (in Weir Herb., 10858); 



