Common Trees of Puerto Rico and the Virgin Islands

PART 2. LEAVES ALTERNATE, COMPOUND
A. Leaves pinnate, including bipinnatc and tripinnate.
B. Leaves bipinnate or tripinnate.
C. Leaves fernlike, coiled at tip when growing, *bearing spores in brown dots beneath; stems unbranched-Treefern
Famlly (Cyatheaceae; Cyathea, Henitfelta), page 28.
CC. Leaves not fernlike; stems becoming branched.
D. Leaflets long- ointed, edges toothed-&felia,* page 246.
DD. Leaflets rounzed or short-pointed at apex, ed es not toothed.
E. Fruit a pod (legume) with beanlike seeds-Lgume Family (Leyminosae), pa 142.
EE. Fruit a long %angled capsule with winged seeds-Hornradish-tree Family &loringacetie;* Moringa*),
page 134.
BB. Leaves oncipinnate.
F. Leaflets parallel-veined, leaves palmlike, very large, with long petiole; stems unbranched-Palm Family (Palmae),
page 34.
FF. Leaflets with veins forming network or inconspicuous^ stems twcoming branched.
G. Leaflets deeply divided into narrow segments, wkite hairy beneath; leaves fernlike, almost bipinnate-
Protea Family (Proteaceac;* Grevilleo*) .
GG. Leaflets not deeply divided or.lobed.
H. Stipules usually present; fruit a pod (legume) with beanliko seeds-Legume Family (Loguminosac), page 142.
HH. Stipules absent; fruits and seeds various.
I. Sap whitish or of other color, resinous.
J. Flowers with 1 very short style, stamens twice as many as petals-Bursera Family (Burseracoae), pa e 258.
JJ. Flowen with 3-6 stigmas or styles, stamens as many or twice as many as petals-Cashew kmily
(Anacardiaceae) , page 286.
11. Sap watery.
K. Leaflets with minute land dots, with citruslike odor when crushed-Rue Family (Rutaceae), page 220.
KK. Leaflets without glan! dots.
L. Leaves with 13-19 lanceolate asymmetrical leaflets, sharply toothed, long-pointed; fruit a walnut-
Walnut Family (Juglandaceae, Juglone).
LL. Leaves and fruit otherwise.
M. Flom.ers with 2-5 pistils or 1 lobed pistil and with 2-5 styles or stigmas; bark and sap bitter--
Ailanthus Family (Simnroubaceae). .. * vnae - 236.
MM. Flowers with 1 I>isiiland 1 style.
N. Flowers mostly unisexual, stamens 5-10, scparatc-Soapberry Family (Sapindaceae),
NN. Flowers bisexual, with mostly 8-10 stamens united into a tube (eepnrate in Cedre rge a)-Ma- 302.
hogany F~imily (XIeliacene), page 241.
AA. Leaves digitate (palmate) or with 3 leaflets (trifoliolate).
0. Leaflets with minute gland dots, with citruslike odor when cnishcd-Rue Family (Rutaceae; Amyris, Pilocarpus),
page 220.
00. Leaflets without gland - dots.
P. Iaaflets 3.
Q. Stjpules usunlly present; fnrit a pod (legume) with beanlike seeds-Erythrina, page 190.
QQ. St~pules absent; fruit a dnipe or winged key-Soapberry Family (Sapindaceae), page 302.
PP. Leaflets 5 or more.
R. Flowers minute: fruit a small, slightly fleshy berry, %seeded-Ginseng Family (Araliaeeae; Didymopanaz),
- -
page 426. .
RR. Flowers la e, with 5 whitish petals; fruit a large oblong capsule with hairy seeds-Bombnx Fnmily (Bombacaceae;
Feiba), page 332.