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Fruit Key and Twig Key To Trees and Shrubs (46 Edition)by William M. Harlow
Synopses & ReviewsPlease note that used books may not include additional media (study guides, CDs, DVDs, solutions manuals, etc.) as described in the publisher comments.
These handy, accurate, and easily used keys to fruit and twig identification are the only guides of their sort with photographs—over 350 of them, of nearly every twig and fruit described—making them especially valuable to the novice.
The fruit key (dealing with both deciduous trees and evergreens) begins with a concise introduction, explaining simply and lucidly the process of seeding, and identifying the various organs involved: the cones and flowers, and their component parts and variations. Next the various types of fruits are described—drupe, berry, pome, legume, follicle, capsule, achene, samara, nut—and fruiting habits, followed by a synoptic summary of fruit types.
The introduction to the twig key tells in plain language the process of growth and its relation to twig morphology through leaf scars, branch scars, buds, etc. For the benefit of the unwary, poison-ivy, poison-oak and poison-sumac are immediately and fully described.
Identification in both books is easy. There is a pair of alternative descriptions of each aspect of the specimens. Your choice of the fitting one leads you automatically to the next proper pair. At the end of the chain is the name of your specimen and, as a double check, a photograph. More than 120 different fruits and 160 different twigs are distinguished.
This exceptional work, widely used in university courses in botany, biology, forestry, etc., is a valuable tool and instructor to the naturalist, woodsman, or farmer, and to anyone who has wondered about the name of a leafless tree in winter or been intrigued by an interestingly shaped fruit or seed.
One of the handiest and most widely used identification aids. Fruit key covers 120 deciduous and evergreen species; twig key covers 160 deciduous species. Easily used. Over 300 photographs.
This handy, accurate, and easily used key to fruit and twig identification features over 350 photographs depicting nearly every twig and fruit described. This exceptional work is a valuable tool and instructor to the naturalist, woodsman, farmer, or anyone who has wondered about the name of a leafless tree in winter or been intrigued by an interestingly shaped fruit or seed.
One of the handiest and most widely used identification aids. Fruit key covers 120 deciduous and evergreen species; twig key covers 160 deciduous species. Easily used. Over 300 photographs. "Students in the field . . . can get accurate identifications faster with these guides than with any of the many teacher's mimeographed ones." — Phytologia.
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