Read e-book online A Field Guide to the Families and Genera of Woody Plants of PDF

By Alwyn H. Gentry

ISBN-10: 0226289443

ISBN-13: 9780226289441

Notice: Scanned PDF with ScanTailor cleanup and Adobe Clearscan OCR

To comprehend virtually any a part of the tropical rain forest's fabulously advanced net of lifestyles, one needs to first discover ways to determine a bewildering array of crops. Alwyn Gentry's landmark publication, accomplished prior to his tragic dying in 1993, is the one box advisor to the approximately 250 households of woody crops within the so much species-rich quarter of South America.

As a consummate box researcher, Gentry designed this advisor to be not only complete, but in addition effortless to take advantage of in rigorous box stipulations. in contrast to many box courses, which depend for his or her identifications on plants and end result which are in simple terms current in the course of yes seasons, Gentry's publication makes a speciality of characters similar to bark, leaves, and scent which are current year-round. His advisor is full of transparent illustrations, step by step keys to identity, and a wealth of formerly unpublished data.

All biologists, natural world managers, conservationists, and executive officers serious about the tropical rain forests will want and use this box guide.

Alwyn Gentry was once one of many world's most excellent specialists at the biology of tropical vegetation. He used to be senior curator on the Missouri Botanical backyard, and was once a member of Conservation International's interdisciplinary swift overview software (RAP) group, which inventories the biodiversity of the main threatened tropical components. From 1967 to 1993 he gathered greater than 80,000 plant specimens, a lot of them new to technology.

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Extra info for A Field Guide to the Families and Genera of Woody Plants of North west South America : (Colombia, Ecuador, Peru) : With Supplementary Notes)

Example text

The latex may not be very obvious; try breaking a leaf and twig as well as the trunk slash ; stilt roots are rather common. lllBc. Punctatio11s Myrtaceae - U� ually further characterized by more or less parallel and close-together secondary and tertiary venation ending in a sub­ marginal vein. Many have smooth, white, peeling bark; some have aromatic leaves. The only possible confusion comes from a very few guttifers that have punctations (but also latex, unknown in Myrtaceae) or from some myrtacs that are not obviously punctate (also beware Mouriri [see below]).

Violaceae Rinorea usually has opposite leaves and is one of the commonest understory-tree genera of many forests. Characterized by the nodes noticeably jointed, the typically short petioles, and--the· tendency to have a small acute stipule-enclosed apical bud immedi­ ately subtended by oblique, whitish-margined, interpetiolar ridge. - Sloanea is characterized by a mixture of alter­ (Eieaocarpaceae) nate and opposite leaves, even on the same branch, but the leaves are almost never uniformly opposite; also very distinctive in the flexed, but non pulvinate petiole apex and strictly pinnate venation .

Liabeae climbers lack odor but have milky leaves. ck; most scandent species are more or less toothed but a few are quite entire. The stems are usually very flexible and smooth­ barked except for conspicuously raised lenticels. - IliAc. Milky latex Apocynaceae Abundant milky latex is unique to this and the following family among Hanas or vines with opposite leaves. The two families are very difficult to distinguish vegetatively and are some­ times united into the same family. Leaves usually with characteristic glands on midrib above, at least at base of midrib.

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A Field Guide to the Families and Genera of Woody Plants of North west South America : (Colombia, Ecuador, Peru) : With Supplementary Notes) by Alwyn H. Gentry


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