1950 



VITIS 



6 Munsoniana, Simpson. MUSTANG GRAPE of Florida, 

 BIRD or EVERBEARING GRAPE. Very slender grower, 

 preferring to run on the ground or over low bushes, 

 more nearly evergreen than the last, flowering more or 

 s continuously? Ivs. smaller, thinner and more shin- 

 to* more nearly circular in outline and less prominently 

 Jointed the teeth broader in proportion to the blade and 

 nTore open or spreading: clust ers larger and more 

 thvrse-like: berries a half smaller than in the last and 

 Kn more numerous, shining black with a more tender 

 pulp, acid juice, no muskiness, and thinner skin . seeds 

 half smaller than in the last. Dry woods and sands, 

 Florida, at Jacksonville, Lake City, and southwards 

 apparently the only Grape on the reef keys; gotalge 

 Bahamas. -Difficult to distinguish from V. rotundifoha 

 in herbarium specimens, but distinct in the fl 



VITIS 



in. in diam.), purple-black and somewhat glaucous, 

 pleasant-tasted, ripe in late summer: seeds small and 

 broad. Sandy banks, low hills and mountains, District 

 of Columbia and S. Pa. to Tenn., Indiana, Mo., and 

 S. W. Texas. 



Var. diss6cta, Eggert, is a form with more ovate Ivs. 

 and very long teeth, and a strong tendency towards ir- 

 regular lobing. Mo. 



FF. Lvs. ovate in outline, with a mostly well-marked 

 sinus. 



G. Diaphragms (in the nodes) thin: young shoots not 

 red: Ivs. not deeply lobed. 



8. monticola, Buckley ( V, Texana, Munson. V 

 Foexeana, Planch). SWEET MOUNTAIN GRAPE. Fig. 



2697. Vitis monticola (on the left) and V. vulpina (X /^/. 



CO. Bark without distinct lenticels, on the old wood 

 separating in long thin strips and fibers: nodes 

 provided with diaphragms: tendrils forked: 

 flower-clusters mostly large and elongated: seeds 

 pyriform . ( Euvitis . ) 



D. Green-leaved Grapes, mostly marked at maturity by 



absence of prominent white, rusty, or blue tomen- 

 tum or scurf or conspicuous bloom on the Ivs. 

 beneath (under surface sometimes thinly pubes- 

 cent, or minute patches of floccose ivool in the 

 axils of the veins, or perhaps even cobwebby): 

 foliage mostly thin: tendrils intermittent, i. e., 

 every third joint bearing no tendrils (or inflores- 

 cence). V. cinerea and \'. Arizonica are partial 

 exceptions and might be looked for in DD (Nos. 

 7-19). 



E. Vulpina -like Grapes, characterized by thin light or 



bright green mostly glossy Ivs. (which are gener- 

 ally glabrous below at maturity except perhaps in 

 the axils of the veins and in V. Champini), with 

 a long or at least a prominent point and usually 

 long and large sharp teeth or the edges even 

 iagged (Nos. 7-18). 

 p. Lvs. broader than long, with truncate-oblique base. 



( V. Treleasei might be sought here.) 

 7. rupestris, Scheele. SAND, SUGAR, ROCK, BUSH, or 

 MOUNTAIN GRAPE. Shrub, 2 to 6 ft. high, or sometimes 

 slightly climbing, the tendrils few or even none, dia- 

 phragms plane and rather thin : Ivs. reniform to reniform- 

 ovate (about 3 to 4 in. wide and two-thirds as long), 

 rather thick, smooth and glabrous on both sui-faces at 

 maturity, marked by a characteristic light glaucescent 

 tint, the sides turned up so as to expose much of the 

 under surface, the base only rarely cut into a well- 

 marked sinus, the margins very coarsely angle-toothed, 

 the boldly rounded top bearing a short, abrupt point 

 and sometimes 2 lateral teeth enlarged and suggesting 

 lobes: stamens in fertile fls. recurved laterally or rarely 

 ascending, those in the sterile fls. ascending: cluster 

 small, slender, open and branched: berries small (%-% 



2697. A slender trailing or climbing plant (reaching 20 

 to 30 ft. in height, with very long and slender branches, 

 the young growth angled and floccose (sometimes gla- 

 brous), the diaphragms plane and rather thin: Ivs. 

 small and thin (rarely reaching 4 in. in width and gen- 

 erally from 2 to 3 in. high), cordate-ovate to triangular- 

 ovate, with the basal sinus ranging from nearly trun- 

 cate-oblique to normally inverted U-shaped, rather dark 

 green but glossy above and grayish green below, when 

 young more or less pubescent or even arachnoid below, 

 the blade either prominently notched on either upper 

 margin or almost lobed, the point acute and often pro- 

 longed, margins irregularly notched with smaller teeth 

 than in V. rupestris : clusters short and broad, much 

 branched : berries medium or small (averaging about 

 Yz in. in diam.), black or light-colored, seedy, sweet: 

 seeds large (about % in. long) and broad. Limestone 

 hills in S. W. Texas. This species has been the sub- 

 ject of much misunderstanding. 



9. vulpina, Linn. (V. riparia, Michx. V. odoratis- 

 sima, Donn. V. Illinoensis and V. Missouriensis, 

 Prince? V. tenuifdlia, Le Conte 1 V. cordifdlia, var. 

 riparia. Gray). RIVERBANK or FROST GRAPE. Figs. 

 2697, 2698. A vigorous tall - climbing plant, with a 

 bright green cast to the foliage, normally glabrous 

 young shoots, large stipules, and plane very thin dia- 

 phragms: Ivs. thin, medium to large, cordate-ovate, 

 with a broad but usually an evident sinus, mostly Show- 

 ing a tendency (which is sometimes pronounced) to 3 

 lobes, generally glabrous and bright green below, but 

 the veins and their angles often pubescent, the margins 

 variously deeply and irregularly toothed and sometimes 

 cut, the teeth and the long point prominently acute: 

 fertile fls. bearing reclining or curved stamens, and the 

 sterile ones long and erect or ascending stamens: clus- 

 ters medium to large, on short peduncles, branched 

 (often very compound), the fls. sweet-scented: berries 

 small (less than % in. in diam.), purple-black with a 

 heavy blue bloom, sour and usually austere, generally 

 ripening late (even after frost) : seeds rather small and 

 distinctly pyriform. New Brunswick, according to 



