Swollen-Thorn Acacias of Central America
SMITHSONIAN CONTRIBUTIONS TO BOTANY NUMBER 13 Swollen-Thorn Acacias of Central America Daniel H. Janzen SMITHSONIAN INSTITUTION PRESS City of Washington 1974 ABSTRACT Janzen, Daniel H. Swollen-Thorn Acacias of Central America. Smithsonian Contributions to Botany, number 13, 131 pages, 119 figures, 1974.-This nomen- clatural, taxonomic, and ecological treatment of 11 Central American obligate ant-acacias (Acacia allenii, A. chiapensis, A. collinsii, A. cookii, A. cornigera, A. gentlei, A. globulifera, A hindsii, A nzayana, A. melanoceras, and A. sphaero- cephala) and one quasi-obligate ant-acacia (Acacia ruddiae) is based on ex- tensive field study from 1963 to 1972 and on herbarium specimens where of use. 7 he population boundaries of all species are mapped and described with respect to ecological parameters. Morphological variation, details of the interaction with the ants, and acacia reproductive biology are presented for most species. OFFICIALPUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution‘s annual report, Srnithsonian Year. SI PRESSNUMBER 4817. SERIESCOVER DESIGN: Leaf clearing from the Katsura tree Cercidiphyllurn japonicum Siebold and Zuccarini. Library of Congress Cataloging in Publication Data Janzen, Daniel H: Swollen-thorn acacias of Central America. (Smithsonian contributions to botany, no. 13) Bibliography: p. 1. Acacia. 2. Ants-Central America. 3. Botany-Central America-Ecology. I. Title. 11. Series: Smithsonian Institution. Smithsonian contributions to botany, no. 13. QKl.S27 no. 13. [QK495.L52] 581’.08s [583’.321] 73-4401 For sale by the Superintendent of Documents, US. Government Printing O5ce Washington, D.C. 20402 . Price $2.35 (paper cover) Contents Page Introduction ..................................................
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