Читать книгу The Grapes of New York - U. P. Hedrick - Страница 45

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1. Munson, Soc. Prom. Ag. Sci. Rpt., 1887:59. California grape. 2. Ib., U. S. D. A. Pom. Bul., 3:10. 1890. 3. Ib., Gar. and For., 3:474. 1890. 4. Ib., Am. Gard., 12:660. 1891. Valley grape. 5. Bailey, Gray’s Syn. Fl., 1:426. 1897. Valley grape. 6. Munson, Tex. Sta. Bul., 56:230, 239. 1900. South California grape. 7. Viala and Ravaz, Am. Vines, 1903:50. V. Californica, var. Girdiana.

Vine vigorous, climbing; shoots scarcely angled, more or less covered with grayish pubescence; diaphragms medium to thick; tendrils intermittent, bifid or trifid. Leaves with medium to small stipules; blade broadly cordate, rather thin, entire or obscurely three-lobed (sometimes distinctly three-lobed on young shoots); petiolar sinus usually narrow, rather deep; margin with many small and acute teeth; under surface covered with thick grayish persistent pubescence. Cluster medium to large, compound, rather loose; peduncle of medium length, slender. Berries small, black, with thin bloom; skin thin but tough; medium to late in ripening. Sweet when ripe with a sharp pungency in the skin. Seeds similar to those of Vitis californica.

Girdiana was separated from Vitis californica by Munson in 1887. It is closely allied to, and is by many botanists still considered a variety of Californica. Wild hybrids with Vitis vinifera are frequently found in regions where it is indigenous.

Girdiana inhabits southern California in the region west and north of Yuma and the valleys of southern California southward into Mexico. Its northern limit is approximately the Mojave desert. The individuals of the species are very numerous, covering shrubs and trees in the regions where it grows.

The species is very susceptible to mildew and black-rot, and like Californica is not resistant to phylloxera. Girdiana is more sensitive to cold than Vinifera. Analyses show that the fruit of the species is deficient in sugar and acid. Girdiana is but little known but certainly is of no value to the grape-growers of the East or North and probably of none to those of the Southwest.