RUBIACEAE 1251 
tinet. Anthers linear. Ovary nearly supe- 
rior.—About 5 species, tropieal 
1. X. ame a L. Shrub or small tree, 
with dar ET S leaf- 2 oblong to 
elliptic or nearl y SO, 3-7 ped ig 
yellow or yellov Pre po 10 
long; lobes ias densely E m sum 
oadly oval, 14- 
n 2 
Everglade Keys, Fla. and Fla. Keys.—(W. ^ 
I.)—Spr.-fall, or all year southward.—The ; 
talow tree has become accommodated to a Í BA 
variety of soils 2 habitats. These factor 
are reflected in its habits. In the sterile soil of the ‘‘scrub’’ it is a ae 
shrub often e poss high; in hammocks it is an erect shrub or small tre 
Y 
OrpER RUBIALES — RUBIAL ORDER 
Herbs, shrubs, or trees. Leaves opposite, sometimes whorled. Flow- 
ers perfect or polygamous, axillary or cymose. Hypanthium present. 
alyx of 2 or more often small sepals. Corolla of 3 or more partially 
united petals. Androecium of as many stamens as there are petals or 
twice as many. Gynoecium 2-several-carpellary. Ovary wholly or par- 
tially inferior. Fruit a capsule, a berry, or a drupe. 
Leaves with stipules adnate to the stem between the leaf-bases. 
Fam. 1. RUBIACEAE. 
Leaves without stipules, or if present these adnate to the 
petiole. Fam. 2. CAPRIFOLIACEAE. 
Faminty d. RUBIACEAE — MappER FAMILY 
Herbs, shrubs, trees, or vines. Leaves dps or whorled, sh 
interpetiolar or foliaceous stipules. Flowers perfect or polygamous, regu- 
lar or nearly so. lyx of 2-6, or more, sepals apenas the h ypan- 
thium, or ded Corolla of 3-6, or more, more or less united p 
Androecium of as many stamens as there are De and alternate vit 
them. onde. $e ral-earpellary. Fruit a capsule, 
berry.—Abou t 340 aa and 6,000 species, widely distributed: Ed 
abundant in the tropics 
Cavities of the ovary with several to many ovules each: seeds several to many. 
Subfamily I. CINCHONOIDEAE. 
Cavities of the ovary with a single ovule each: 
seed solitary. 
Stipules not folia aceous, usually minute. Subfamily II. COFFEOIDEAE. 
Stipules foliaceous, nearly or quite as large as 
the leaf-blades, thus making the leaves ap- 
pear as in whorls. Subfamily III. GALIOIDEAE. 
Subfamily I. CINCHONOIDEAE 
Fruit dry 
Seed T 
Ovul very numerous: shrubs or trees. 1. PINCKNEYA. 
ONDES ts and cor herbs, so S ues woody at the base. 
epa 
p 
panthiu 2. OLDENLANDIA. 
Top of the ies des extending beyond the hy- 
panthiu 3. HOUSTONIA. 
