Get A Field Guide to the Families and Genera of Woody Plants of PDF

By Alwyn H. Gentry

ISBN-10: 0226289443

ISBN-13: 9780226289441

Word: Scanned PDF with ScanTailor cleanup and Adobe Clearscan OCR

To comprehend nearly any a part of the tropical rain forest's fabulously advanced net of existence, one needs to first discover ways to establish a bewildering array of vegetation. Alwyn Gentry's landmark e-book, accomplished earlier than his tragic demise in 1993, is the single box advisor to the approximately 250 households of woody crops within the so much species-rich area of South America.

As a consummate box researcher, Gentry designed this advisor to be not only entire, but in addition effortless to take advantage of in rigorous box stipulations. in contrast to many box publications, which depend for his or her identifications on vegetation and end result which are merely current in the course of definite seasons, Gentry's booklet specializes in characters akin to bark, leaves, and smell which are current year-round. His advisor is stuffed with transparent illustrations, step by step keys to id, and a wealth of formerly unpublished data.

All biologists, natural world managers, conservationists, and govt officers keen on the tropical rain forests will want and use this box guide.

Alwyn Gentry used to be one of many world's premier specialists at the biology of tropical crops. He was once senior curator on the Missouri Botanical backyard, and was once a member of Conservation International's interdisciplinary swift review application (RAP) crew, which inventories the biodiversity of the main threatened tropical parts. From 1967 to 1993 he gathered greater than 80,000 plant specimens, lots of them new to technological know-how.

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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)

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Strongly aromatic species of both families are mostly herbs or subshrubs. Compositae - Opposite-leaved Compositae are nearly always 3- veined above the base (unlike any of the above families) and have more pungent odors. 32 Key to the Families 11/Bf. Glands on twig at base of petiole Vochysiaceae - Very characteristic glands from the fallen stipules or stipule bases characterize most Vochysiaceae (except Vochysia) . 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).

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. In general woody Hanas are apocynacs while herbaceous climbers are mostly asclepiads. - Asclepiadaceae Essentially a herbaceous version of Apocynaceae and often indistinguishable vegetatively.

Rutaceae - Most species of Rutaceae are punctate at least along leaf­ let margin ; most pinnate-leaved rutacs are species of Zanthoxylum and most of these have spines on the trunks, branchlets, or leaves. Leguminosae A few genera of legume have punctate leaves, the punctations often rather linear, at least in part. - IIBf. Very bitter taste Simaroubaceae Most simaroubacs are characterized by a · bitter taste when the twig is chewed. (Apparently a few people don ' t taste the bitter principal of Simaroubaceae; check your taste buds on a known specimen.

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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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