VITIS 667 



distinct and spreading and, like the sepals, in fives. It is a very handsome 

 climber when in vigorous growth, but although it flowers occasionally, 

 rarely develops fruit with us. Perhaps partially or wholly evergreen in 

 warmer climates. (See also V. orientahs.) 



V. ARIZONICA, Engelmann. CANON GRAPE. 



A shrubby or weakly climbing vine, deciduous; branchlets angular, at 

 first clothed with cobwebby down, tendrils mostly perishing when young. 

 Leaves heart-shaped, sometimes unlobed, sometimes more or less distinctly 

 three-lobed; i to 3 ins. wide, about the same long; the sinus at the base 

 broad and rounded, the apex pointed, the margins coarsely and fairly 

 regularly triangular toothed; cobwebby above, woolly beneath when young; 

 stalk one-third to half as long as the blade. Berries black, with abundant 

 bloom, small, agreeable in flavour. 



Native of the south-western United States; introduced to Kew in 1898. 

 It has little to recommend it for gardens in general. 



V. ARMATA. Diets. 

 (V. Davidii, Foex ; Spinovitis Davidii, Carriere.) 



A luxuriant, deciduous climber, the young shoots not downy, but covered 

 with spiny, gland-tipped, .somewhat hooked bristles, which give them a very 

 rough appearance. Leaves heart-shaped, slender-pointed, toothed; 4 to 10 

 ins. long, 2^ to 8 ins. wide; shining dark green and smooth above ; bluish 

 or greyish green beneath, and downy only in the vein-axils, but more or less 

 glandular-bristly, as is also the leaf-stalk, which is from half to nearly as 

 long as the blade. Fruit nbt yet seen in this country, but said to be about 

 f in. diameter, black, and of a pleasant flavour. 



Native of Central China; introduced by Wilson for Messrs Veitch in 

 1900, but if, as I believe, the vine called Spinovitis Davidii is the same, it 

 has been cultivated in France and in England since about 1885. The plant 

 cultivated at Kew under the latter name has leaves more deeply lobed and 

 more coarsely toothed than Wilson's V. armata, and the spines are smaller; 

 but in other respects it does not appear to differ. According to Carriere, 

 the leaves are very variable in shape. 



Var. VEITCHII is described as a more vigorous form than the type, and 

 as having larger leaves of unsurpassed richness in autumn colouring. 

 Ordinary V. armata changes to brilliant red. 



V. BICOLOR, Le Conte. BLUE GRAPE. 



A vigorous deciduous climber, with round shoots free from down, but 

 usually very glaucous, a tendril missing from every third joint. Leaves 4 to 

 12 ins. wide and long, three- or five-lobed, irregularly and shallowly toothed, 

 usually smooth on both surfaces, and vividly blue-white beneath. Ln other 

 respects this vine is similar to V. aestivalis, to which it is most nearly allied. 

 It is a native of the eastern and central United States, and in cultivation 

 in Britain makes a luxuriant climber. Visitors to Goat Island, Niagara 

 Falls, will have noticed its abundance there, associating with Celastrus 

 scandens and other climbers in the production of a beautiful and luxuriant 

 effect; this vine is conspicuous in the blue-white young shoots and under- 

 surface of the leaves, to which the popular name refers. 



