. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. 1 THE SEDUMS OF THE EASTERN UNITED STATES Edgar T. Wherry^ J f ) \ r I MOST of the species of Sediim grown in our rock gardens are natives of Europe and Asia. They have been the sub- ject of considerable taxonomic study and appear to be fairly well understood, al- though not always distributed by dealers under correct names. The six species na- tive to the eastern United States, however, have not yet received the attention they de- serve from horticulturists and are fre- quently misinterpreted by European taxon- omists. Se
. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. 1 THE SEDUMS OF THE EASTERN UNITED STATES Edgar T. Wherry^ J f ) \ r I MOST of the species of Sediim grown in our rock gardens are natives of Europe and Asia. They have been the sub- ject of considerable taxonomic study and appear to be fairly well understood, al- though not always distributed by dealers under correct names. The six species na- tive to the eastern United States, however, have not yet received the attention they de- serve from horticulturists and are fre- quently misinterpreted by European taxon- omists. Several of them were included in the account of the cultivated Sedums by Praeger^, but in two cases he failed to ap- preciate their relationships. It is hoped that the present article will lead to a better understanding and greater horticultural ap- plication of these interesting plants. The eastern Sedums fall into four of Praeger's sections, which may be distin- guished by the following key: Plants perennial from stout, fleshy or some- what woody caudices; follicles tending to stand erect, at most their beaks spreadmg. Flowers chiefly perfect; beaks of the follicles slender §Telephmm Flowers in part dioecious; beaks of the follicles stout §Rhodiola Plants perennial from slender fleshy stolons, or annual; follicles spreading. Duration perennial; leaves relatively broad; petals white §Seda genuma Duration annual; leaves relatively nar- row; petals pinkish §Epetemm §TELEPHIUM: One species, Sedum TELEPIIIOIDES MiCHAUX. (AnACAMP- SEROS TELEPIIIOIDES (MiCIIAUX) Ha- woRTH; Sedum Telepiiium Praeger, Not Linne.) This is one of the American Sedums mis- understood by Praeger. In the general discussion of the Section, he refers to it thus: ''One species, S. telephioides (perhaps only a variety of S. Telephium), is con- fined to N. ; Again, under Sedum telephioides, Michx. {August, 1933) Telephium itself, he remarks that This common species, which ranges right round th
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