is a species of flowering plant in the Cucurbita cylindrata squash family. [1 ] It is similar to [2 ] , Cucurbita californica , Cucurbita cordata , and Cucurbita digitata and all these species hybridize readily. Cucurbita palmata These species form the only restricted [3 ] xerophyte species group in the genus . Each member of this species group is native to the Cucurbita Southwestern United States and Northwestern Mexico where they are relatively uncommon. Each group member is found in hot, arid regions with low rainfall. They prefer soil that is loose, gravelly, and well-drained. C. cylindrata is found only in the middle portion of Baja California, mostly in Baja California Sur. Botanists Bemis and Whitaker suggest that C. cordata and C. cylindrata may be a case of sympatric speciation. The juvenile leaves of C. cylindrata, C. cordata, C. digitata, and C. palmata show a high degree of similarity, but their mature leaves are visibly different, as are their root structures. C. cylindrata fruits are dark green, striped, and round. [4 ]
It was first identified by
Liberty Hyde Bailey in 1943. [2 ]
References [ edit ]
^ GRIN (February 17, 2005). ". Cucurbita cylindrata L. H. Bailey" Taxonomy for Plants. National Germplasm Resources Laboratory, Beltsville, Maryland: USDA, ARS, National Genetic Resources Program . Retrieved September 27, 2013.
^ a b Nee, Michael (1990). "The Domestication of Cucurbita (Cucurbitaceae)". (New York: New York Botanical Gardens Press) Economic Botany 44 (3, Supplement: New Perspectives on the Origin and Evolution of New World Domesticated Plants): 56–68. doi: 10.2307/4255271. JSTOR 4255271.
^ Puchalski, J. T.; Robinson, R. W. (1978). "Comparative Electrophoretic Analysis of Isozymes in . Cucurbita Species" Cucurbit Genetics Cooperative Report (Raleigh, NC: North Carolina State University) 1: 28.
^ Bemis, W. P.; Whitaker, Thomas W. (April 1969). "The Xerophytic Cucurbita of Northwestern Mexico and Southwestern United States". (California Botanical Society) Madroño 20 (2): 33–41. JSTOR 41423342.