| Title | Sedum of the Trans-Mexican Volcanic Belt: an Exposition of Taxonomic Methods. Ithaca, NY |
| Abbreviation | Sedum Trans.-Mex. Volcanic Belt |
| Variant title: | Sedum Trans.-Mex. Volc. Belt |
| Authors | R. T. Clausen |
| Publication Dates | 1959 |
| Remarks | Drawings by Elfriede Abbe |
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