XII ILLUSTRATIONS. 
Facing page 
Puate XXXVI. Guacima (Guazuma guazuma). Coamo Springs. ......-.----- 155 
XXXVI. Heckerva peltata; inflorescence and center of leaf. Near Rio 
Piedras ........22...2 2.200222 ee eee eee eee eee 158 
XXXVIIL. Heekeria umbellata; inflorescence and center of leaf, Near 
Rio Piedras ........2-.-.--2---+---20 2-22-0002 e ee eee eee ee 158 
XXXIX. Talantala (//erpetica alata). At Catanio..... 2... wee eee ee eee 159 
XL. Lira (/ibiscus schizopetalus). Garden of the — Captain- 
General, Rio Piedras .........-2------2---2--+--2-0 eee e eee 160 
XLI. Pods of algarrobo (//lymenaca courbarii). Mayaguez Market .. 164 
XLIT. Physic nut (Jatropha eurcas). Catafio..........------5----- 171 
XLIII. Mangle blanco (Laguncularia racemosa), flowers, seeds, and 
seedlings. Catano......-.......2-.2-+2-02--22--22------- Vo 
XLIV. Molinillo (Leonotis nepetacfolia).............2-2-----52------ 174 
XLV. China berry ( Melia azedaruch). Coamo Springs. ......-.---- 190 
XLVI. Cundeamor ( Momordica charantva). Rio Piedras......--.--- 193 
XLVIIL. Cork wood (Ochroma lagopus). Bayamon ..........--.--...-. 205 
XLVIIL. Spineless Opuntia. Near Guayama ..............------- 1. 206 
XLIX. Para grass (Panicum molle), Aibonito ..........-.-..2----- 21) 
L. Emajagua (Paritium tiliaceum). Caguas ........2..-2.------ 212 
LI. Pentaraphia albiflora, Cayey.........2 0.222.220 eee eee 215 
LIL. Tachuelo (Pictetia aristata), Coamo Springs........-.------- 218 
LILI. Tachuelo (Pictetia aristata), showing aristate leaves. Aibonito. 218 
LIV. Flame tree (Poinciana regia). In the Plaza, Caguas. ....... 0 223 
LV. Berengena cimarrona (Solanwm torvim). Quebrada Arenas... 248 
LVI. Anacagiiitas (Sterculia carthaginensis). Near Ponce.......... 245 
LVIT. Almendro ( Terminalia catappa). Quebrada Arenas... 2... -- 250 
LVIII. Santa Maria ( Thespesia populnea). Near Ponee......-..-.-- 253 
LIX. Santa Maria ( Thespesia populnea), showing fruit. Ponce... 258 
LX. Guanabancilla cimarrona (Vinceloxicum sp). Near Coamo 
Springs...-....--.-2. 5022220022222 e eee eee eee eee 262 
LXI. Pinnae of Polypodium spp .......-.----------+---2-------+-- 278 
LXII. Polypodium adelphum.............--.-.0--5-0 022 22222-022--- 280 
LXIIT. Carex peucophila...........0.-0.0000 00002 eee eee 290 
LXIV. Ornithocarpa fimbriata.......00..2-..0020200 22020222 293 
LXV. Synthlipsis lepidota ........0.000000 000020222 e eee eee ee eee 294 
LXNVI. Rubes rugosum.... 2-22.22 eee eee 22. B00 
LXVII. Nosteletzkya malvaviscana.........-.-22--.22--02220 2202222 ee 319 
LXVIII. Nosteletzkya violacea......0....20.0002-- 20222222 319 
LXIX. Taonabo oocarpa..........--2--220 202-2222 2 2 eee eee 322 
LNX. Begonia unifolia .. 2.200000 eee 324 
LXXI. Conostegia minuteflora.... 2.0.2.2 eee ee 327 
LXXII. Monochaetuwm pringlet ...........-000-.--22-0 2202 eee eee 327 
TEXT FIGURES. 
Page. 
ia. 1. Flowers of Polwanthes palustris........ 02002-00250 25 20022 9 
2. Flowers of Polianthes durangensis..........0.-.-.-----222---225--+2+- 9 
3. Flowers of Polianthes tuberosa..........0 0-0-2222 22 eee ee eee 10 
4 Flowers of Polianthes geminiflora............0.022222-2---5-50 0020222 e- 12 
5. Flowers of Prochnyanthes viridescens ..........----22-.-2202202002---5 14 
6. Flower of Manfreda virginica... 2.2.2... 0.002222 - 22 ee ee 15 
7. Pods of Acacia amlnugua... 2... ..00220-2022 0000222 ee 31 
8. Pod of Acacia unijuga..... 22.0.2 eee : 32 
9. Pod of Mimosa hemrendyta..........-...--.0.-02-0 002-2 eee eee 32 
