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Excerpt from Trees of the Caribbean National Forest, Puerto Rico The Caribbean National Forest in the Luquillo Mountains of northeastern Puerto Rico is unique within the National Forest System. Its tropical vegetation varies from luxuriant rain forests on the lower Slopes to dwarf forests on the exposed peaks. Within its boundaries of acres are 225 species of native trees, more than in any other equal area of the United States. Among these species, 88 are classed as endemic or rare. Sixty-eight are limited to Puerto Rico and 23 of them found wild only within the forest boundaries. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Excerpt from Tree Growth in a Moist Tropical Forest of Puerto Rico Information on growth rates, both for individual trees and for forest stands, is vital to forest plan ning and management. Such information is needed for a variety of sitesand stand conditions in the moist tropical forests of the western hemisphere. In this paper, growth rates for individual trees are reported for two secondary stands and one mature stand in the Caribbean National Forest in Puerto Rico. Estimates are based on long-term measure ments, taken in 1957 and again in 1975, on more than individuals of 18 species. In addition, the variability in growth rates is related to species, crown position, diameter class, elevation (and simultaneously climate), and topographic position. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Excerpt from Common Trees of Puerto Rico and the Virgin Islands About 500 species of trees, from the giants of the luxuriant rain forests to the shrubby trees of dry areas and windswept mountain summits, are na tive to Puerto Rico and the Virgin Islands, both United States and British (fig. In addition, several hundred tree species from other tropical lands around the world have been introduced into the islands because of showy owers, handsome foliage, dense shade, valuable timber, delicious fruits, or other values. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."
Excerpt from Trees of Puerto Rico and the Virgin Islands, Vol. 2 About 40 miles east of Puerto Rico are the United States Virgin Islands, St. Thomas, St. John, and St. Croix. These three islands, pur chased from Denmark in 1917, have a total area of 133 square miles. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Excerpt from The Caribbean Forester, Vol. 16: January-June 1955 The humid limestone region, extending al most the length of the north coast of Puerto Rico, is an area of shallow rocky clay soils, mostly hilly and already covered with secon dary forests. The lower, more protected slo pes apparently are potentially a good forest site, but because of their accessibility few trees of good species remain. Reforestation is less a problem than the introduction of supe rior species into existing stands. The studies here reported are located in the Cambalache Experimental Forest at sea level with about 60 inches of rainfall annually, in the Rio Aba jo Forest, at feet elevation with 80 inches of precipitation, and in the Guajataca Forest at 500 feet elevation with 70 inches of rain fall annually.made slow but continuous growth beneath light shade. After 2 years the trees range between 30 and 48 inches in height, and no need for early liberation is apparent. Mexican cypress (cupressus lusitanica Mill), described elsewhere in this report as very promising at high elevation, has general ly appeared much less adapted to low eleva tions. Trees at sea level usually become poorly formed, weaken, and frequently fall over. In 1952 underplanting in the Rio Abajo forest the trees appeared so weak until the past year as to be destined for failure. However, as a result of recent complete liberation from shade the trees now appear to be growing as well as at higher elevations. Now, after 4 years, the trees range between 10 and 15 feet in height and are beginning to dominate the site. This species will apparently not withstand much shade under these conditions and therefore should not be underplanted. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Excerpt from Rare and Endemic Trees of Puerto Rico and the Virgin Islands: November 1980 Oxford: key words: Trees (puerto Rico); trees (virgin Islands); rare trees; rare and endangered plants; tree sanctuaries. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.