Читать книгу The Grapes of New York - U. P. Hedrick - Страница 18
SPECIES OF AMERICAN GRAPES.
CONSPECTUS OF NORTH AMERICAN SPECIES OF VITIS.
Оглавление| A. Skin of mature berry separating freely from the pulp. | |
| B. Nodes without diaphragms; tendrils simple | 1. V. rotundifolia. 2. V. munsoniana. |
| B.B. Nodes with diaphragms; tendrils forked. C. Leaves and shoots glabrous at maturity and without bloom. Tendrils intermittent (V. cinerea and V. arizonica are partial exceptions and might be looked for under C.C.). D. Leaves thin, light, bright green, generally glabrous below at maturity except perhaps in the axils of the veins (V. champini an exception) with a long or at least a prominent point and usually long and sharp teeth or the edge even jagged. (V. bicolor might be looked for here.) E. Leaves broader than long; petiolar sinus usually wide and shallow. (V. treleasei might be sought here.) | 3. V. rupestris. |
| E.E. Leaves ovate in outline; petiolar sinus usually medium to narrow. | |
| F. Diaphragms thin; young shoots not red. | 4. V. monticola. 5. V. riparia. 6. V. treleasei. 7. V. longii. 8. V. champini. |
| F.F. Diaphragms thick; young shoots bright red | 9. V. rubra. |
| D.D. Leaves thickish, dull colored or grayish green, often holding some close dull pubescence below at maturity, shoots and leaves nearly always more or less pubescent when young; the teeth mostly short; the point mostly rectangular and conspicuous. | |
| E. Plants strong, climbing, with stout persistent tendrils. | |
| F. Young shoots cylindrical, glabrous or very soon becoming so | 10. V. cordifolia. |
| F.F. Young shoots angled, covered the first year with tomentum or wool | 11. V. baileyana. 12. V. berlandieri. 13. V. cinerea. |
| E.E. Plants scarcely climbing, tendrils perishing when without support | 14. V. arizonica. |
| D.D.D. Leaves orbicular, scallop shaped; species of the Pacific Coast | 15. V. californica. |
| C.C. Leaves rusty or white tomentose or glaucous blue below, thick or at least firm. (V. cinerea, V. arizonica and possibly V. californica might be sought here.) | |
| D. Leaves flocculent or cobwebby or glaucous below when fully grown (i. e. not covered with a thick dense felt-like tomentum except sometimes in V. doaniana). | |
| E. Shoots white tipped; ends of the growing shoots and the under surface of the leaves whitish or gray | 16. V. girdiana. 17. V. doaniana. |
| E.E. Shoots rusty tipped; the unfolding leaves and (except in V. bicolor) the young shoots distinctly ferrugineous; mature leaves either rusty or bluish below or sometimes becoming green in V. bicolor | 18. V. aestivalis. 19. V. bicolor. 20. V. caribæa. |
| D.D. Leaves densely tomentose or felt-like beneath throughout the season; covering white or rusty white. | |
| E. Tendrils intermittent | 21. V. candicans. 22. V. simpsoni. |
| E.E. Tendrils mostly continuous | 23. V. labrusca. |
| A.A. Skin and pulp of mature berry cohering. (Old World) | 24. V. vinifera. |
SHOOT OF VITIS ROTUNDIFOLIA
