806 PASSIFLORACEAE 
5 distinct petals and no staminodia. Gynoecium a compound pistil. Ovary 
l-celled, or sometimes spuriously 5-celled, free, sessile. Stigmas 5, sessile. 
Ovules numerous, inserted in two or many series on the 5 placentae. Fruita 
fleshy berry, indehiscent. Seeds numerous, flattened, with a variously rough- 
ened testa. Endosperm fleshy. Embryo axile. [Caricaceae Dumort. ] 
1. CARICA L. 
Characters of the family. CUSTARD APPLE. PAPAW. 
1. Carica Papaya L. A small tree, witha simple wand-like stem, 3-6 m. tall, leafy 
at the top. Leaves large; blades thick, suborbicular in outline, 2-6 cm. broad, mostly 
palmately 7-lobed, pale or glaucous beneath, each lobe pinnately lobed, the segments 
obtuse or acute, or the larger ones often acuminate; petioles stout : staminate flowers in 
slender panicles 1-several dm. long, the ultimate clusters rather dense : calyx of the stami- 
nate flowers 1-1.5 mm. high, that of the pistillate flowers 5-10 mm. high, the lobes longer 
than the tube, curved like the bractlets: corolla yellow or reddish, that of the staminate 
flowers 2.5-3 cm. long ; tube slender, dilated near the top ; lobes lanceolate or elliptic- 
lanceolate, barely 4 as long as the tube: corolla of the pistillate flowers longer: petals 
distinct, lanceolate, twisted : berries oblong to subglobose, mainly 2-12 cm. long, yellow or 
orange, with a milky juice. 
In woods, peninsular Florida and the Keys. Throughout tropical America.—Two well-marked 
forms occur in Florida ; the one with aslender green stem and relatively small fruit, the other with a 
stout purple or purplish stem and large fruit. 
FAMILY 2. PASSIFLORACEAE Dumort. PASSION-FLOWER FAMILY. 
Perennial, mostly tropical herbs, vines or shrubby plants, often climbing by 
means of tendrils, with poisonous emetic and narcotic roots. Leaves alternate : 
blades simple or rarely compound: stipules usually present. Tendrils arising 
from the axils of the leaves. Inflorescence axillary. Flowers perfect or rarely 
polygamous, regular. Calyx of 5 partially united sepals. Corolla of 5 petals 
inserted in the throat of the calyx, near a filamentous crown, or obsolete. An- 
droecium of 5 stamens. Filaments monadelphous, adhering to the stalk of the 
ovary. Gynoecium a compound pistil. Ovary usually stalked, 1-celled, with 
parietal placentae. Styles as many as the placentae, usually 3, club-shaped. 
Ovules numerous, anatropous. Fruit fleshy, berry-like, indehiscent. Seeds 
numerous, enclosed in a pulp, with a brittle sculptured testa. Endosperm thin, 
fleshy. Embryo straight in the axis of the endosperm. 
1. PASSIFLORA L. 
Perennial herbaceous or shrubby vines, climbing by simple lateral tendrils. Leaf- 
blades entire, lobed or variously parted. Flowers perfect, usually showy, solitary or 
clustered in the axils, or racemously disposed. Calyx sometimes colored : lobes 4-5, 
narrow, sometimes horned near the apex. Petals 4-5, about as long as the calyx, or 
rarely wanting. Crown single, double or triple, its filaments spreading, often filiform. 
Stamens 4-5: filaments adnate below to the gynophore: anthers elongated, versatile. 
Stigmas 3, capitate. Berry dry or pulpy. Seeds flattened. PAssroN-FLOWER. 
Peduncle bearing a conspicuous involucre of 3 bracts near the calyx. . j ents 
Leaf-blades hastately lobed : bracts of the involucre pinnately 1-3-divided into very ERU : 
Leaf-blades palmately lobed: bracts of the involucre entire. 2. P. incarnata. 
Peduncle without an involucre, or this obsolete. 
Petioles without glands. te 
Peduncles destitute of bractlets: upper leaf-blades with lobes broaderthanlong. 3. P. lutea. 
Peduncles with 20r3 bractlets: upper leaf-blades with lobes about as broad as 
ong. SE. affinis. 
Petioles with glands at the middle or at the base of the leaf-blade. 
Glands of the petiole conspicuously remote from the blade. 
Upper leaf-blades lobed nearly to the base: peduncles shorter than the [masc 
petioles. jay nan vno 
Upper leaf-blades shallowly lobed: peduncles surpassing the petioles. 6. P. su - 
Glands of the petiole contiguous with blade or approximate to it. 
A. Foliage glabrous or sparingly pubescent : peduncles solitary or by pairs. 
a. Glands elevated from the petioles. allida 
Leaf-blades mostly entire. 7. P.p gustifolia. 
Leaf-blades mostly 3-lobed. 8. P, an 
