1948 



VITEX 



VITIS 



piiiiiatitld, grayish tomentiilose beneath, the middle one 

 2-3 in. long, the smallest uiies often entire: (Is. smaller, 

 scarcely J^ in. long, in more slender aad looser terminal 

 panicles; staoinns shorter than limVj ; throat villons. 

 July, Aug. N. China. :\[(.ngoli;i. B.M. :u\4 (as T. Ne- 





26Q4. Vitex incisa (XK)- 



(/undo). Less showy ia bloom than the preceding spe- 

 cies, b\it a graceful slirub of loose and open habit, with 

 handsome foliage. 



Y. iUcifolia, A. Rich. Lvs. simple, short-stalked, oval, spiny- 

 toothed; ris. in ]ojij,'-st:ilked, axillary, inany-thl, cyuies. Cuba. 

 ~Y. Lindeni, Hnok. f. Lfts. '6-0, elliptic or elliptic-obovate, 

 glabrous: tls. pale violet, in few-tid,, axillary, lung-stalked 

 beads. Colomliia. B.M. 62'A0.— Y. Negundo, Linn. Closely al- 

 lied to V. ineisa, l.nit lfts. entire or crenately serrate, larger: 

 tls. purple, somewhat larger. Tropical and subtropical Asia.— 

 Y. (rifdiia, Linn. Lfts. usually 3, obovate or ohovate-oblong, 

 obtuse, entire: fls. lilue, in terminal pMuicles. S. Asia, Poly- 

 nesia. Var. unit'oliolata, S'diauer. With a solitary short- 

 stalkedleutlet. Alfked Rehder. 



VITICULTURE. See Grape and YUis. 



VITIS (classical Latin name). Vine. Grape. Vifctrecp 

 or Am peUdece. A widespread genus of mostly tendril- 

 Iiearhi;,^ climbing vines, most almndant in temperate 

 countries. In its stricter limitations, the genus in- 

 cludes less than 50 known speeies, but some authors 

 unite (Jissus and Ampelopsis with it, when it includes 

 some 250 species. The latest monographer (Planchon, 

 DC. Monogr. Pbaner. o), refers thirty or mor? sjiecies 

 to Vitis in the main account ami in the addendum, and 

 more than 200 to Cissus. North America is parrieularly 

 rich in Vitis, not only in number of species but in the 

 widespread distribution and the abundance of the 

 plants. From our native species have been develojied 

 the outdoor Grapes of this country except those of 

 Ciilifornia and the extreme southwest (which are IV/i.v 

 vhiil'rni). For an account of the evolution of these 



native ctiltural varieties, see Grape; also Bailey's 

 "Sketch of the Evolution of Our Native Fruits." 



i\Iany of the species of Vitis are excellent ornamental 

 plants, when it is desired to cover arbors, porches or 

 trees. All of them are readily grown from seeds, and 

 most of them from hardwood cuttings. Only a few of 

 the native species are regularly in the trade; but with 

 the possible exception of I". Trelenaei they have been 

 offered for sale to experiment stations and amateurs by 

 T. V. Munson, of Texas, who is a well-known authority 

 on both the botany and horticulture of the Grape. The 

 ]'opular interest in these species is x^rimarily pomologi- 

 cal; for, although the fruit may not be directly use- 

 ful, the species give promise of development through 

 hybridization and plant-lireeding, and some of them 

 afford useful stocks on whieh to graft kinds that do not 

 resist the phylloxera or root-louse. The following dis- 

 cussion includes all the species native to North America 

 north of Mexico; it is adapted from the writer's account 

 in Gray's Synoptical Flora, vol. I, 420-4;{0. These 

 American Grapes are very difficult to distinguish in 

 many cases; hence the snlijoined descriptions are very 

 full in order to bring out the contrasting characters. 

 Some of the best recent systematic writing on Ameri- 

 can Vitis is from French sources, since the American 

 species have come into prominence in France as phyl- 

 loxera-resisting stocks for the Wine Grape. See, for 

 example, the works of Millardet, and Viala and Ravaz; 

 also "Ampelographie Universelie," by Viala and Ver- 

 morel, now publishing. 



As understood by Gray, Vitis is distinguished as fol- 

 lows: Plants climbing by the prehension and coiling 

 of naked-tipped tendrils. Flowers polygamo-dloecious 

 (i. e., some individuals perfect and fertile, others sterile 

 with at most only a rudimentary ovary), 5-merous; co- 

 rolla calyptrately caducous, — the petals in aiithesis cast 

 off from the base while cohering by their tijis (Fig. 

 2695) : hypogynous disk of .5 nectariferous glamis alter- 

 nate with stamens : style short and thick, <»r conical: 

 berry pulpy; seeds pyriform, with contracted beak-like 

 base. 



jestivalis, 22. 

 Americana, 22. 

 angulata, 5. 

 antarctica, 1. 

 araneosus, 22. 

 aroenti folia, 2)1 

 Arizonensis, 18. 

 Arizonica, 18. 

 Baileyana, 1.^. 

 ]iinidii}iana, 1. 

 Berlandieri, 16. 

 idcolor, 2I[. 

 Blancoi, 2'i. 

 Blandi, 27. 

 Bourquiniana, 2'j 

 hracteata, 22. 

 Calif ornica, 19. 

 candicans, 25, 

 canescens, 17. 

 Caribsea, "24. 

 Champini, 12. 

 riiierea, 17. 

 Coignetiie, 2. 

 eordifolia. H. 

 coriacea, 25. 



INDEX. 



dissecta, 7. 

 diversifolia , 22. 

 Doanian;!, 21, 

 foetida, 14. 

 Foexeana, 8. 

 Floridana, 5, 17. 

 Girdiana, 20. 

 glabra, IH. 

 glauea, 22- 

 gongylodes, 4. 

 Helleri. 14. 

 hypoglauca, 3. 

 IlUnoensis, 9. 

 Labrusca. 27. 

 Linsecoraii, 22. 

 Longii, 11, 

 microspernia, 12. 

 A[i8Soitrirn.sis. 9. 

 vioiiospvrnin, 13. 

 monticola, 8. 

 Munsoniana, 6. 

 'inuscadina, 5. 

 Mustangensis, 25. 

 Nortoni, 22. 



Nuevo-Afexicana, 11. 

 occidentalis, 22. 

 odoradssiina, 9. 



palmata, 13. 

 peltata, 5. 

 prase ox, 9. 

 pterophora. 4. 

 pudaria, 14. 

 rotundifolia, 5. 

 riparia, 9. 

 rubra, 13, 

 rupestris, 7. 

 sempervirens, 14. 

 Simpsoni, 26. 

 Solonis, 11. 

 S)ih'^stris. 22. 

 taurhta, 5. 

 U'miifoHa, 9. 

 Texaiia, 8. 

 Treleasei. 10. 

 verrucosa, 5. 

 vinifera, 28. 

 YiroinUina. 15. 

 vulpina, 5, 9. 



2695. Grape flowers, enlarged, 



1, shows the bnd; 2. shows the petals or "cap" 

 t'aUing; 3, shows the dower in full bloom, the petals 

 having Iteen cast nif. In ;i.H the Mowers the minute 

 f':ilyx is seen, and in 2 and 3 the disk is shown iuside 

 the liase of the stamens. 



