Vor. II.] PASSION-FLOWER FAMILY. 457 
Family 80. PASSIFLORACEAE Dumort. Anal. Fam. 37a LO2Q. 
PASSION-FLOWER FAMILY. 
Woody vines, climbing by tendrils, or erect herbs, with alternate petioled 
usually palmately-lobed leaves, and solitary or clustered perfect regular flowers. 
Calyx-tube short or elongated, persistent. Petals usually 5, inserted on the 
throat of the calyx, distinct, or in some species united. Stamens5. ‘Throat of 
the calyx crowned with a double or triple fringe. Filaments subulate or filiform, 
monadelphous, or separate. Ovary free from the calyx, 1-celled; placentae 3-5, 
parietal; styles 1-5. Fruit a berry or capsule, usually many-seeded. 
About 18 genera and 325 species, of warm and tropical regions, most abundant in South America. 
1. PASSIFLORA L. Sp. Pl. 955.1753. 
Climbing tendril-bearing herbaceous or woody vines, with lobed parted or entire alter- 
nate or rarely opposite leaves, and large showy axillary flowers, on jointed, often bracted 
peduncles. Calyx-tube cup-shaped or campanulate, 4-5-lobed, the lobes narrow, imbricated 
in the bud, its throat crowned with a double or triple fringe called the corona, Petals 4 or 5 
(rarely none), inserted on the throat of the calyx. Ovary oblong, stalked. Filaments 
monadelphous in a tube around the stalk of the ovary, separate above; anthers narrow, versa- 
tile. Fruit a many-seeded berry. Seeds pulpy-arilled, flat, ovate; endosperm fleshy. 
[Flower of the Cross, or Passion, as emblematic of the crucifixion. ] 
About 250 species, mostly natives of tropical America, a few in Asia and Australia. Besides 
the following, about 7 others occur in the southern and southwestern States. 
Leaves deeply 3-5-lobed; the lobes serrate; petals whitish; corona purple. 1. P. tncarnata. 
Leaves obtusely 3-lobed above the middle, the lobes entire; flower yellowish. 2. P. lutea. 
1. Passiflora incarnata 1. Passion-flower. Passion-vine. (Fig. 2515.) 
Passiflora incarnata \,. Sp. Pl. 959. 1753- 
Stem glabrous, or slightly pubescent above, 
striate when dry, climbing to a height of / 
10°-30°. Petioles 14/-2/ long, with 2 glands | 
near the summit; leaves nearly orbicular in \ 
outline, glabrous, or often somewhat pubes- 
cent, 3’-5’ broad, somewhat cordate at the 
base, deeply 3-lobed, (rarely 5-lobed), the 
lobes ovate or oval, acute or acutish, finely 
serrate; flowers solitary, axillary, white with a 
purple or pink corona, 1%4/-2’ broad; pedun- 
cles longer than the petioles, usually 3-bracted 
just below the flowers; calyx-lobes linear, 
cuspidate on the back; berry ovoid, nearly 
2/ long, glabrous, yellow. 
In dry soil, Virginia to Missouri, south to 
Florida and the Indian Territory. _ Fruit edible, 
called Maypops. May-July. 
2. Passiflora lutea L. Yellow Pas- 
sion-flower. (Fig. 2516.) 
Passiflora lutea \,. Sp. Pl. 958. 1753. 
Glabrous or very nearly so throughout, 
climbing or trailing, 3°-10° long. Petioles 
¥4/-1'4/ long; leaves much broader than 
long, more or less cordate at base, with 3 
wide obtuse rounded lobes, the lobes en- 
tire, often mucronulate; stipules 1//-11%4// 
long; peduncles slender, exceeding the peti- 
oles, usually in pairs from the upper axils; 
flowers greenish yellow, 6//-10/’ broad; 
calyx-lobes linear; berry globose-ovoid, 5//— 
6/’ in diameter, glabrous, deep purple. 
In thickets, Pennsylvania to Illinois and Missouri, south to Florida and Louisiana. May-July. 
