138 PASSIFLORACE^E. (PASSION-FLO WER FAMILY.) 



Order 47. PASSIFLORACEiE. (Passion-Flower Fam.) 



Vines, climbing by tendrils, with perfect flowers, 5 monadelphous stamens, 

 and a stalked l-celled ovary free from the calyx, with 3 or 4 parietal placen- 

 ta, and as many club-shaped styles ; — represented by the typical genus 



1. PASSIFLORA, L. Passion-Flower. 



Calyx of 5 sepals united at the base, imbricated in the bud, the throat crowned 

 with a double or triple fringe. Petals 5, arising from the throat of the calyx. 

 Stamens 5 : filaments united in a tube which sheathes the long stalk of the ovary, 

 separate above: anthers large, fixed by the middle. Berry (often edible) many- 

 seeded ; the anatropous albuminous seeds invested by a pulpy covering. Seed- 

 coat brittle, grooved. — Leaves alternate, palmately lobed, generally with stip- 

 ules. Peduncles axillary, jointed. (Name, from passio, passion, and jios, a 

 flower, given by the early missionaries in South America to these flowers, in 

 which they fancied a representation of the implements of the crucifixion.) 



1. P. listen, L. Smooth, slender; leaves obtusely 3-lobed at the summit, the 

 lobes entire ; petioles glandless ; flowers greenish-yellow (1' broad). 1J. — Damp 

 thickets, S. Penn. to 111., and southward. July -Sept. — Fruit A' in diameter. 



2. P. iiECiftl'lintil, L. Nearly smooth; bares 3-cleft ; the lobes serrate; 

 petiole bearing 2 glands ; flower large (2' broad), nearly white, with a triple pur- 

 ple and flesh-colored crown ; involucre 3-leaved. — Dry soil, Virginia, Kentucky, 

 and southward. May -July. — Fruit of the size of a hen's egg, oval, called 

 Maypops. 



Order 48. CUCURBITACE^E. (Gourd Family.) 



Herbaceous mostly succulent vines, with tendrils, dioecious or monoecious 

 {often monopetalous) flowers, the calyx-tube cohering ivilh the 1 - 3-celled 

 ovary, and the 3-5 sta7ne?is commonly more or less united by their often tor- 

 tuous anthers as well as by the filaments. Fruit (pepo) fleshy, or sometimes 

 membranaceous. — Limb of the calyx and corolla usually more or less com- 

 bined. Stigmas 2-3. Seeds large, usually flat, anatropous, with no albu- 

 men. Cotyledons leaf-like. Leaves alternate, palmately lobed or veined. 

 (Mostly tropical or subtropical.) 



Synopsis. 



1. SICYOS. Corolla of the sterile flowers flat and spreading, 5-lobed. Fruit prickly, inde 



hiscent, 1-ceUed, 1 seeded. 



2. ECHINOCYSTIS. Corolla of the sterile flowers flat and spreading, 6-parted. Pod prickly, 



2-celled, 4 seeded, bursting at the top. 

 8. MELOTIIRIA. Corolla of the sterile flowers somewhat campanulate, 5-cleft. Berry 

 smooth, many-seeded. 



1. SICYOS, L One-seeded Star-Cucumber. 



Flowers monoecious. Petals 5, united below into a bell-shaped or flattish 

 corolla. Stamens 3-5 all cohering Ovary l-celled, with a single suspended 



