The Subgenus Inophloea Russow (concluded) S. erythrocalyx collected by Underwood in the vicinity of Cinchona in Jamaica, one of which (no. 16o) was named by Warnstorf S. medium Limpr. and evidently forms the basis of Warnstorf's assignment of this species to Jamaica,' but S. medium Limpr. is not found in the West Indies. The second (no. A) Warnstorf named S. meridense var. versicolor2 and still refers to this species.3 With these reductions and corrections the distribution of S. erythrocalyx is largely indicated. Its most northerly stations are in New Jersey, where it was collected by D. C. Eaton at Quaker Bridge and Pleasant Mills and distributed in Sphagna boreali-americana exsiccata (Eaton & Faxon) as nos 171 and 172. From there southward it is found along our Atlantic and Gulf coasts to Louisiana and throughout the West Indies, where it is the prevailing species of Inophloea, in fact the only one yet found except S. portoricense and S. imbricatum. The locality in British Honduras (leg. F. M. Hunt, I9IO) is the only one from Mexico and Central America and similarly in South America it seems primarily a species of the eastern part of the continent, being remarkably abundant in Brazil. Within the range indicated it may be sought in relatively small, compact plants with short branches, showing, if pigmented, a reddish or purplish brown color, which may even be quite dark. The plants are dioicous and rarely found with fruit.