By Alwyn H. Gentry

ISBN-10: 0226289443

ISBN-13: 9780226289441

Be aware: Scanned PDF with ScanTailor cleanup and Adobe Clearscan OCR

To comprehend virtually any a part of the tropical rain forest's fabulously complicated internet of existence, one needs to first discover ways to determine a bewildering array of vegetation. Alwyn Gentry's landmark publication, accomplished in advance of his tragic demise in 1993, is the single box consultant 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 consultant to be not only accomplished, but additionally effortless to take advantage of in rigorous box stipulations. not like many box courses, which count for his or her identifications on plant life and end result which are in basic terms current in the course of convinced seasons, Gentry's ebook makes a speciality of characters resembling 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 His advisor is full of transparent illustrations, step by step keys to identity, and a wealth of formerly unpublished data.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 govt officers considering the tropical rain forests will want and use this box guide.

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

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Additional 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

Leguminosae Most 3 foli olate c lim bers are papilionate legumes characterized by typical legu me odor, uniformly c yl i ndrical p ulvin u l i and pulvinus and often with (un ique ) stipels at base of lateral pulvinuli, - - and red latex. Connaraceae - Very like legumes in the cylindrical pulvinuli and pulvinus but without a green-bean odor and always lacking sti pe ls Key /I 21 and red latex. Most 3-foliolate Connaraceae have alternate basal leaf­ lets (rare in legumes). Connaraceae leaflets mostly have finely promi­ nulous venation and a characteristic chartaceous texture that is subtley different from those of l egume climbers.

Nyctaginaceae Two opposite-leaved genera become lianas in our area, one (Pisonia) characterized by spines and rather clustered, not clearly opposite leaves, the other (Colignonia) woody only in - cloud forests and characterized by the tendency to verticillate leaves (and the very characteristic Hydrangea-like inflorescence · bracts); both have concentric rings of anomalous growth. Amarantbaceae Two genera of more or less woody opposite­ leaved climbers in our area, Iresine and Pfaffia (other genera are usually prostrate or scrambling herbs; see also alternate-leaved Chamissoa), characterized by acanthlike swollen nodes (sometimes shrunken above node when dried) and by the evenly striate-ribbed branchlets; lresine has hollow twigs.

Th e combination of opposite simple leaves and serrate margins is a rare one andfound only in eight woody neotropical lowland families besides the Quiinaceae, Melastomataceae, and Chloranthaceae which are easily recognized (cf, above). g. , Gesneriaceae) have some viny (see above) or subwoody members with opposite serrate leaves. IIIBg. Serrate (serrulate) �rgins - Hippocrateaceae Mostly lianas but a few are trees and Cheilocli­ nium can be both a tree and have serrate leaves; it is characterized - by tertiary venation more or less parallel and perpendicular to mid vein.

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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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