CONTENTS 
Page 
Introduction. 9-2. eee oT 
Economie plants imperfectly know ne. ee 58 
Materials included and arrangement of list .......-.. 22. 2-2 58 
Misplaced common names___--.----- 8) ee 59 
References to botanical literature __- Oo ee wee eee ee 60 
Books on Porto Rican plants ______- 7 oe 60 
Personal field work, ac knowledgements, and desideratum - ~ ee eee 2 
Catalogue of economic plants of Porto Rico... -_---_- 222 63 
A a) ry T 
ILLUSTRATIONS. 
PLATES. 
PuLaTE XIII. Porto Rico Royal Palm (Roystonea boringuena) __....Frontispiece. 
XIV. 
XV. 
XVI. 
XVII. 
XVIII. 
AIX, 
XX. 
XXI. 
XXII. 
XAITI, 
XXIV. 
XXYV. 
XXVI. 
XXVILI. 
XXVIII. 
X XIX. 
XXX, 
AXXI. 
XXXII. 
XXXITI. 
XXXIV. 
XXXV. 
Facing page. 
Okra (Abelmoschus esculentus) showing healthy and diseased 
fruits. From Santurce _._--.--..-.---------- -o eee 63 
Acacia amarilla (Albizzia lebbek). Near Juana Diaz Woe 70 
Alpinia wutans. At Caguas _....-.-22 222222 2 eee 73 
Anthurinn acaule —.---2 22-2. oe. (oe 82 
Antigonon leptopus. Coamo Springs......--__-. 82 
Flamboyant blanco (Bauhinia kappler 7). Coamo Springs. 90 
Ucar tree (Bucida buceras). Coamo Springs.---------. 96 
Alnacigo (Bursera simaruba), Coamo Springs -_-----. ~~. 97 
Algodon de seda (Calotropis procera), Road near Guayama. 101 
Palo de burro (Capparis cynophallophora), fruit and leaves.. 104 
Ceiba tree (Ceiba pentandra). Near Ponce ...-.---.-.---.--- 111 
Stem and edible fruit of Cereus sp. At Guayama - -... «112 
TIcaco (Chrysobalanus ieaco) _....2 2-22 114 
Péndulo colorado (Citharexylum  quadr angular e), Road 
between Ponce and Adjuntas ___..______- ee 116 
Cupey (Clusia rosea). Near Yauco. 99) ee —.. 119 
Job’s tears (Coia lachryma-jobl) —...-..-- 2-2. - - 122 
Moral tree (Cordia macrophylla). Coamo Springs ....... .. 127 
Cerezas (Cordia nitida) ........--.. 22 ee 127 
Calabash tree (Crescentia cujete). ‘Near Rio Piedras......... 129 
Concombre (Cucumis anguria) --_-- ne 130 
Virgin forest of tabonuco (Dacryodes hecandra). At Isolina- 182 
Jaguey (Ficus lentiginosa). Road between Ponce and 
Adjuntas. 0.002.020 eee) 148 
