138 PASSIFLORACE^E. (PASSION-FLOWER FAMILY.) 



ORDER 47. PASSIFLORACE^E. (PASSION-FLOWER 



Vines, climbing by tendrils, with perfect /lowers, 5 monadelphous stamen*, 

 and a stalked 1-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. PASSIFtORA, 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 lobcd, generally with stip- 

 ules. Peduncles axillary, jointed. (Name, from pasm'o, passion, and flos, 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. liitca, L. Smooth, slender; leaces obtusely 3-lobed at the summit, the 

 lobes entire; petioles glandless; flowers greenish-yellow (!' broad). U Damp 

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



2. P. ilicai'llflta, L. Nearly smooth; leaces 3-cl^Jl ; tli<> MHS m-rrate , 

 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, diiccious or monceciowt 

 (often monopetalous) Jlowers, the calyx-tube cohering with the 1 - 3-ceUed 

 ovary, and the 3-5 stamens commonly more or less untied by their often tor- 

 tuous anthers as well an by the filaments. Fruit (pepo) fleshy, or sometime* 

 niembranaceous. 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 redded. 



2. EC-Ill XOCYSTIS. Corolla of the sterile flowers flat and spreading, G-p:irted. 1'od prickly 



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



8. MELOTHUIA. Corolla of the sterile flowers somewhat campamilatc, 5-cleft. Berrj 

 smooth, many-seeded. 



1. S1CVOS, L. ONE-SEEDED STAR-CUCUMBER. 



Flowers monucl ms. Petals 5, united below into a bell-shaped or flauish 

 corolla. Stamens 3-5 all cohering Ovary 1-celled, with a single suspended 



