VITIS 



The structure of the key to the following species, 

 when standing alone, is as follows : 

 A- Species qrown trholh/ f.ir ,>r„<imeiit.- 



Old Worhl (Nos. 1-4) 



B. Ifvs. simple, cissns-lih, (No. 1) 



BB. Lvs. simple, rith-lik,' (No. 2) 



BBB. Jyi'S. with 3-0 III.'! (Nos. 3, 4) 



AA. Species grown primurily fur their 

 pomoloijical interest: all New 



World except No. 2S (Nos. 5-28) 



B. Skin separating from the pulp.... (Nos. .n-27) 



c' Bark not shredding i Xos. .%. I'o 



cc Bark shredding i N" - ) 



D. Green-lea red Grapes i X' * Ml 



E. Vulpina-like iNo -1 ) 



F. 1/vs, broader than long (No 7) 



¥T. I/vs. ovate (Nos 8-13) 



G. Diaphragms thin (Nos 8-12) 



GG. Diaphragms very thick.. (No 13) 



EE. Cordifolia-like (Nos 14-1'*) 



F. Plant strong and climbing. (Nos 14-1"! 



G. young shoots terete (No 14) 



GG. Voting shoots angled.... (Nos lo-l i 



FF. Plant scarcely climbing (No 18) 



EEE. Orbicular-scallop -leaved spe- 

 cies (No 1<)) 



DD. Colored-leaved Grapes (Nos 20-27) 



E. Mature lvs. only floeculent or 

 cobwebby or glaucous be- 

 neath (Nos 20-24) 



F. Unds of growing shoots 



white-tipped (Nos 20,21) 



FF. Ends of shnnts rusty-tipped. (Nos 22-24) 

 EE. Miiiiirr hx. ,h iiseli/ tomentose 



h.ii.all .' (Nos 25-27) 



K. 'JVndnls liihrmittent (Nos 25,26) 



FF. 'Tiiidrils continuous (,at 



every joint) (No 27) 



BB. Skin and pulp firmly cohering .. . (No 28) 



A. Species grown wholly for ornament, recently intro- 

 duced from various parts of the Old World. 

 B. Lvs. simple, cissus-like. 



1. antdrcticB, Benth. (Cissus antdrctiea, Vent. 

 Vitis Baudinidna, P. Muell. Cissus Buudini&na, 

 Brouss.). Vigorous tall woody climber, the young 

 growths red-hairy or sometimes glabrous: lvs. ovate to 

 oblong, on hairy petioles, toothed, glandular in the 

 axils of veins beneath : fls. greenish, tomentose, in 

 short cymes, the petals 4 and falling separately: berry 

 globular. Australia. B.M. 2488. -Offered in southern 

 California and said to be suitable for covering rocks 

 and walls. 



BB. Lvs. simple, often lobed, vitis-like. 



2. Coigu^tise, Pulliat. Very strong-growing vine, cov- 

 ering trees and arbors with a thatch of heavy showy 

 foliage: branches tloccose-tomentose when young: ten- 

 drils intermittent: lvs. cordate - orbicular, with 3-5 

 lobe - like points, the margins shallowly apiculate- 

 toothed, dull above, thickly gray-pubescent beneath: 

 thyrse stalked, short: fr. globular, about 3lj in. in diam., 

 practically inedible, although said to be eaten after 

 being frozen bv the Japanese. N. Japan. Gn. 49, p. 48; 

 50, p. 449. B.H. 1898, p. 426-28. -One of the best of all 

 strong-growing vines, and hardy in the northern states. 

 Its foliage becomes brilliant scarlet in the fall, whence 

 it has been called the "Crimson Glory Vine." In gen- 

 eral appearance it much resembles Vitis Labnisca. It 

 is not yet well known. It grows readily from imported 

 seeds. It can also be propagated by layering and by 

 grafting on other stocks. Named for Mme. Coignet, 

 of Lyons, Prance. 



VITIS 



1949 



4. pteT6phoia, Baker ( 1'. gongylbdes, Lynch, not 

 Baker). A most remarkable species, the branches bear- 

 ing cylindrical or club - .shaped tubers at their ends, 

 which fall and produce new plants : tall, climbing by 

 means of long forking disciferous tendrils, the stem 

 winged and hairy: lvs. large, of 3 Ifts., which may be 

 again lobed, the stipules large and purple on one side, 

 the petiole winged : cyme pedunculate : floral envelopes 

 of a thickened calyx and 4 mimite petals. Brazil. G.C. 

 II. 19:53. B.M. 6803. Gn. 55. p. 170. -Offered in S. 

 Calif. 



BBB. Lv 



. with S-o leaflets. 



b11. (Cissus hypoglaiica, Gray). 



3. hypoglaiica, F. Mu 

 Foliage handsome and persistent, dark green above and 

 glaucous beneath ; leaflets usually 5, obovate to elliptic, 

 acuminate, stalked, entire or toothed towards the apex: 

 fls. yellowish : fr. rather small and nearly globular. 

 Australia. -Offered in S. Calif. 



AA. Species grown primnrilt/ for their pomological 

 [fruit) interest, all native e.rcept No. 28. 



B. Skin of the mature h, rrii iixunllii separating freely 



from tin imlp I .V..,s. .',-j7). 



C. Bark bearing promitieiit leiilirel.-:. never shredding: 



nodes without diaphragms: tendrils simple: 

 flotver-elusters small and not much elongated: 

 seeds oval or oblong, without a distinct stipe-like 

 beak. (Muscadinia.) 

 5. TOtnndifdlia, Michx. ( V. taurina. Bartram. V. vnl- 

 plna, Authors, not Linn. 1'. musciid'iiiii , amjuhlta, ver- 

 rucdsa,peltAta,Floriddna,Ti&i.). Musiadine. Southern 

 Pox Grape, Bullace or Bullit or Bill Grape. Pig. 

 2696. Vine with hard, warty wood, running rampantly 

 even 60 to 100 ft. over bushes and trees, and in the 

 shade often sending down dichotomous aerial roots: lvs. 

 rather small to medium (2 to 6 in. long), dense in tex- 

 ture and glabrous both sides (sometimes pubescent 

 along the veins beneath), cordate-ovate and not lobed, 

 mostly with a prominent and sometimes an acuminate 

 point (but somewhat contracted above the termination 

 of the two main side veins), the under surface finely 

 reticulated between the veins, the teeth and the apex 

 angular, coarse and acute, the basal sinus shallow, 

 broad and edentate; petiole slender and (like the young 

 growth) flne-scurfy, about the length of the leaf -blade: 

 tendrils (or flower-clusters) discontinuous, every third 

 node being bare: fruit-bearing clusters smaller than the 

 sterile ones, and ripening from 3 to 20 grapes in a 

 nearly globular bunch: berries falling from the clusters 

 when ripe, spherical or nearly so and large (K-1 in. in 

 diameter), with very thick and tough skin and a tough 

 musky flesh, dull purple in color without bloom (in the 

 Scuppernong variety silvery amber-green), ripe in 

 summer and early autumn: seeds K-% in. long, shaped 

 something like a coffee berry. River banks, swamps, 

 and rich woodlands and thickets, S. Delaware to N. Fla. 

 and west to Kans. and Texas. 



