Vitis bourquiniana Munson

Family: Vitaceae

Description: A grape differing from the common V. arizonica Engelm. by having leaves permanently tomentose beneath rather than glabrate. It is presently treated as a horticultural variety of V. aestivalis Michx. var. bourquiniana (Munson) Bailey.

Distribution: This variety is apparently a southern cultivar; the species, V. aestivalis, is eastern North American (see discussion in comments).

Plants Seen or Cited: NM, Bernalillo Co., Sandia Mts., La Cueva Canyon, found along a small stream with Virginia Creeper, 8400', 10 Aug 1965, C.B. Jones 200-1 (UNM). I did not confirm the identification of this specimen, nor did I make a note if M.O. Moore had seen it during the preparation of the Vitaceae treatment for Flora North America.

Habitat: If. V. aestivalis var. bourquiniana: Small stream with virginia creeper, 8400' (C.B. Jones 200-1, UNM). If V. × doaniana: Sandy or alkaline soil, often along streams, 5,000-6,000' (Martin and Hutchins 1980); Well-drained soils of the Rolling Plains and Cross Timbers, 250-400 m (Moore 1991, unpubl.).

Comments: This name applies to a cultivated grape in the South (Gray Herbarium Index, vol. 10, 1968), where it is listed as a synonym of V. aestivalis var. bourquiniana. This name does not appear in NM literature (Martin and Hutchins, 1980; Roalson and Allred 1996). Of particular note, it does not appear in the work of a well-known splitter, J. K. Small (1903). The name also does not appear in Moore (unpubl.). Rehder (1940) distinguishes the variety within V. aestivalis, noting that the pubescence on the abaxial side of the leaves is grayer, less rusty, than the typical variety. Moore (unpubl.) maps the three varieties that he recognizes within V. aestivalis as being eastern North American, coming as far west as eastern Texas and central North Dakota, but in his 1991 paper he does not list V. bourquiniana anywhere.

The source of the record for New Mexico seems to be based upon a single specimen at the University of New Mexico which may be misidentified; this record has been picked up in the NMNHP data-base as element PDVIT04050. The collector called it the "Doan grape" on the label of the UNM specimen. Martin and Hutchins (1980) treat the Doan Grape as V. doaniana Munson, mapping it in Bernalillo and Socorro counties. Moore (1991, unpubl.) recognizes this as a hybrid (V. × doaniana Munson ex Viala), the parents being V. mustangensis Buckley and V. acerifolia Raf. Moore notes the hybrid to be reported from Colorado and New Mexico, but he saw no specimens from these states. He maps the Doan Grape only from north-central Texas and adjacent Oklahoma (unpubl.). When interpreted as a hybrid, it is unlikely that the Doan Grape occurs in New Mexico; V. mustangensis is restricted to eastern Texas and states adjacent, and is not sympatric with V. acerifolia in its range in New Mexico.

Status: Not rare. Apparently a southern cultivar of V. aestivalis if V. bourquiniana. Presence in the state needs to be confirmed by study of specimen cited above. Vitis aestivalis, sensu lato, is a common species in the eastern portion of North America. Whether considered V. bourquiniana

or Doan's Grape, it is most likely New Mexico records are based on misidentifications or on range extensions of peripheral and not rare species and/or hybrids.

Important Literature:

Martin, W.C., and C.R. Hutchins. 1980. A Flora of New Mexico, vol. 1. J. Cramer, Vaduz. 1276 pp.

Moore, M.O. 1991. Classification and systematics of eastern North American Vitis L. (Vitaceae) north of Mexico. Sida 14(3):339-367.

Moore, M.O. Unpublished. Vitaceae, in Flora of North America North of Mexico, 60 manuscript pages + maps.

Rehder, A. 1940. Manual of Cultivated Trees and Shrubs, 2nd. ed. MacMillan Co., New York. 996 pp.

Roalson, E.H., and K.W. Allred. 1996. Interim Draft Copy of A Working Index of New Mexico Plant Names. Range Science Herbarium, NMSU, Las Cruces. 245 pp.

Small, J.K. 1903. Flora of the Southeastern United States. Pub. by author, New York. 1370 pp.

Information Compiled By: Richard Spellenberg, 1998