Abstract
A species formerly thought to be in a monotypic genus,Petrogenia repens I. M. Johnston, is found to be congeneric withBonamia. The new combinationBonamia repens (I. M. Johnston) Austin & Staples is made. This species, with two others, we interpret as being an endemic triad in the Chihuahuan Desert Region. Possible relationships, ecology, palynology, cotyledon structure, and morphology are discussed.
This is a preview of subscription content, log in via an institution to check access.
Literature Cited
Austin, D. F. 1973. The American Erycibeae (Convolvulaceae):Maripa, Dicranostyles andLysiostyles— II. Palynology, Pollen & Spores 15: 206–226.
— & R. A. Pedraza. 1983. Los géneros de Convolvulaceae en México. Bol. Soc. Bot. México 44: 3–16.
Ferguson, J. K., B. Verdcourt & M. M. Poole. 1977. Pollen morphology in the generaMerremia andOperculina (Convolvulaceae) and its taxonomic significance. Kew Bull. 31: 763–773.
Hallier, H. 1897. Bausteine zu einer Monographie der Convolvulaceen. 5. Uebersicht über die GattungBonamia. Bull. Herb. Boissier 5: 804–820, 996–1013.
Johnston, I. M. 1941. New phanerogams from mexico, IV. J. Arnold Arbor. 22: 116–118.
Johnston, M. C. 1977. Brief resume of botanical, including vegetational, features of the Chihuahuan Desert Region with special emphasis on their uniqueness. Pages 335–359.In: R. H. Wauer & D. H. Riskind, editors. Transactions of the symposium on the biological resources of the Chihuahuan Desert Region, United States and Mexico. Proceedings and Transactions series— National Park Service No. 3, Washington, DC.
Lewis, W. H. 1971. Pollen differences betweenStylisma andBonamia (Convolvulaceae). Brittonia 23: 331–334.
Myint, T. 1966. Revision of the genusStylisma (Convolvulaceae). Brittonia 18: 97–117.
— & D. B. Ward. 1968. A taxonomic revision of the genusBonamia (Convolvulaceae). Phytologia 17: 121–239.
Rzedowski, J. 1981. Vegetación de México. Editorial Limusa, Mexico. Pp. 237–261.
Shinners, L. H. 1962. Synopsis of the United StatesBonamia, includingBreweria andStylisma (Convolvulaceae). Castanea 27: 65–77.
— 1970. Convolvulaceae. Pages 1241–1261.In: D. S. Correll & M. C. Johnston. Manual of the vascular plants of Texas. Texas Research Foundation, Renner.
tharp, B. C. & M. C. Johnston. 1961. Recharacterization ofDichondra (Convolvulaceae) and a revision of the North American species. Brittonia 13: 346–360.
Torrey, J. 1859. General botany.In: W. H. Emory, Report on the United States and Mexican Boundary Survey 2: 27–270. Washington, DC.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Austin, D.F., Staples, G.W. Petrogenia as a synonym of Bonamia (Convolvulaceae), with comments on allied species. Brittonia 37, 310–316 (1985). https://doi.org/10.2307/2806081
Issue Date:
DOI: https://doi.org/10.2307/2806081