Voi,. II.] 



PASSION-FLOWER FAMILY. 



457 



Family 80. PASSIFLORACEAE Dumort. Anal. Fam. 37. 1829. 



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. Stamens '5. Throat of 

 the calyx crowned with a double or triple fringe. Filaments subulate or filiform, 

 monadelphous, or separate. Ovary free from the calyx, i-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. 



i. 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. 

 Leaves obtusely 3-lobed above the middle, the lobes entire; flower yellowish. 



I. Passiflora incarnata L,. Passion-flower. Passion-vine. 



Passiflora incarnata L. Sp. PI. 959. 1753. 



Stem glabrous, or slightly pubescent above, 

 striate when dry, climbing to a height of 

 io-3o. Petioles >^ / -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, i^ / -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. 



1. P. incarnata. 



2. P. lutea. 



(Fig. 2515.) 



2. Passiflora lutea L,. Yellow Pas- 

 sion-flower. (Fig. 2516.) 

 Passiflora lutea L. Sp. PI. 958. 1753. 



Glabrous or very nearly so throughout, 

 climbing or trailing, 3-io long. Petioles 

 y^'-\yt' 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 i // -i^ // 

 long; peduncles slender, exceeding the peti- 

 oles, usually in pairs from the upper axils; 

 flowers greenish yellow, 6 // -io // 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. 



