расширенный поиск

Книга по требованию: Leaflets of Western Botany, Vol. 3 (Classic Reprint)

Товар № 11452478
Вес: 0.49 кг.
Год издания: 2015
Страниц: 310 Переплет: мягкая обложка
Товар отсутствует
Узнать о поступлении

Excerpt from Leaflets of Western Botany, Vol. 3

What is written of them is taken from specimens in Herb. Calif. Acad. Sci. made on other expeditions of the Academy.

The Guadalupe Island Pine

The first collection of pine on Guadalupe Island was made by Edward Palmer in 1875 and was referred to George Engelmann, who named and described it as a new variety of the Monterey Pine, Pinus insignis var. binata (1880). According to Engelmann, the new variety had cones typical of the species, but had needles in pairs. In 1895 (p. 42), Lemmon transferred the varietal name to P. radiata Don, an earlier name of the Monterey Pine; and following Greene (1887, p. 413) and Brandegee (1888, p. 217; 1890, p. 145), he continued that confusion in names between the pines on the Californian and Lower Californian islands that persisted until recently corrected by Abrams (1923, p. 60) and by Mason (1930, p. 8). My opinion is that the only pine on Guadalupe Island is P. radiata, but Mason has more recently reported the occurrence there of P. muricata Don (1932, p. 51; 1934, p. 147). His decision-is based on material in the Dudley Herbarium, Stanford University, but the specimens I examined there I believe are referable to P. radiata. McMinn and Maino (1935, p. 86) report the occurrence of P. remorata Mason on Guadalupe Island, but the report is perhaps based on statements that the Guadalupe Island pine approaches P. remorata (cf. Mason, 1932, p. 52).

When I visited the pine grove on Guadalupe Island, I distinguished trees with three kinds of cones, one type with the cones very asymmetrical with the umbos of the outer scales much thickened, a second type with cones almost symmetrical with the scales alike on all sides, and a third type, intermediate between the other two, with the cones somewhat asymmetrical with the outer scales noticeably but not prominently umbonate. In the specimens I collected, the first two types have somewhat larger cones (10-11 cm. and 9-10 cm. long respectively) and the intermediate type has somewhat smaller ones (8-9 cm.). Trees with cones of the first two types are only occasional or rare, those with the third type are the most common.

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.

Эта книга будет изготовлена в соответствии с Вашим заказом по технологии Print-on-Demand компанией ООО «Книга по Требованию». Print-on-Demand - это технология печати книг по Вашему заказу на цифровом типографском оборудовании. Книга, произведенная по технологии Print-on-Demand (POD) представляет собой классическую печатную книгу с соблюдением всех стандартов качества, от офсетной бумаги и плотного картона до качественного клея, используемого при изготовлении. Черно-белая текстовая или полноцветная иллюстрированная книга (в зависимости от исходного файла, подготовленного к печати) может быть изготовлена в разных вариантах: - в мягкой обложке (Клеевое Бесшвейное Скрепление); - скрепление скобой (для книг с небольшим количеством страниц); - в твердом переплете с клееным текстовым блоком; Материалы, используемые при производстве книги: - бумага текстового блока - офсетная (белая или кремовая) 80 г/м2 - мягкая обложка - бумага мелованная 250 г/м2; - ламинация обложки - матовая или глянцевая; - твердый переплет - картон 2 мм, каптал, белые форзацы, прямой корешок - сверхпрочный полимерный клей; - каждая книга упакована в термопленку. Каждый заказ обрабатывается в индивидуальном порядке: каждой книге, напечатанной по технологии Print-on-Demand, присваивается уникальный номер.

Читать далее