OHDEB 58. CUCURBIT ACE^E. 353 



phous, surrounding the stipe of the ovary. Ovary superior, on a long stipe, 1 -celled; 

 styles 3. Fruit many-seeded. (Illust in figs. 48, 148, 371, 372.) 



Genera 12, fipecit,* 210, chiefly natives of tropical America, but cultivated in many other conn- 

 tries as ornamental flowers. The fruit of the Granadilla (Passiflora inultiformis) is eaten in the 

 "W. Indies, and highly valued as a deasert, but the root is poisonous. 



PASSIFLO'RA, L. PASSIOJI FLOWER. (Lat. flos passionis ; the 

 several parts of the flower were compared to the instruments of the 

 Saviour's passion, viz., the cross, the nails, and the crown of thorns.) 

 Calyx colored, deeply 5-parted, the throat with a complex, filamentous 

 crown ; petals 5 ; sometimes ; stamens 5, connate with the stipe of 

 the ovary ; anthers large ; stigmas 3, large, clavate, capitate ; fruit a 

 pulpy berry. Climbing herbs or shrubs. Fls. large, of a singular and 

 wonderful structure. (Fig. 372.) 



1 P. ccertilea L. Shrubby; Ivs. palmately and deeply 5-parted; segm. linear- 

 oblong, entire, lateral ones often 2-lobed; pet. glandular, with a 3-bracteolate 

 involucre near the flower; bractlets entire; fil. of the crown shorter than the cor. 

 Native of Brazil, where it grows to the thickness of a man's arm and to the 

 height of 30f! Fls. large and beautiful, blue externally, white and purple within. 

 continuing but ono day. Fr. ovoid, yellow, f 



2 P. incarnata L. Lvs. deeply 3-lobed, lobes oblong, acute, serrate, petioles v:ith 

 2 glands near the summit; bractlets of the involucre 3, obovate-glandular ; crown 

 triple. Ya. to Fla. Sts. climbing 20 to 30f. Fls. large and showy. Petals 

 white. Two outer rows of filaments, long, purple, with a whitish band, the inner 

 row of short rays, flesh-colored. Berry pale yellow, of the size of an apple, eata- 

 ble. May Jl. 



3 P. lutea L. Lvs. glabrous, cordate, 3-kbed, obtuse; petioles without glands ; ped. 

 mostly in pairs ; pet. narrower and much longer than the sep. A slender climber, 

 5 to 1 Of long, in woods and thickets, Ohio and S. States. Lvs. yellowish green. 

 nearly as broad as long. Fls. small and greenish yellow. Corona in 3 rows, the 

 inner row a membranous disk with a fringed border. Fr, dark purple. May JI. 



ORDER LVIII. CUCURBITACE^E. CUCURBITS. 

 Herbs succulent, creeping or climbing by tendrils, with alternate leaves. Flowers 

 monoecious or polygamous, never blue. Calyx 5-toothed, adherent. Petals 5, united, 

 inserted on the calyx, the lobes alternating. Stamens 5, distinct, generally coher- 

 ing in 3 sets. Anthers very long and wavy or twisted. Ovary inferior, 1-celled, 

 with 3 parietal placentas often filling the cells. Fruit a pepo or membranous. Seeds 

 ilat, with no albumen, often ariled. (Fig. 442.) 



Genera CO, specie* 300, natives of tropical regions. only a few 1>c!n? fcnnd in the temperate 

 zones of Europe and America. A highly important order of plants, affording some of the most 

 delicious and nutritive fruit A bitter laxative principle pervades the group, which is so concen- 

 trated in a few ns to render them actively medicinal. The officinal colocynth is prepared from 

 the pulp of Cucumis Oolocynthis, a powerful drastic poison. 



Corolla white, C-cleft. Btigiruis 2. Fruit echinate ....................... ECIIIXOCYSTIS. 1 



5-petalled. Pepo smooth, many-seeded .................. LAGE.NAP.IA. 2 



5-parted. Berry smooth, few-seeded ..................... BRVOXIA. :l 



5-lobed. Fruit prickly, 1-seeded ......................... Sieves. 



Corolla yellow, 5-lobed. Berry small, smooth, 00-seeded ................ MELOTIIRIA. 5 



5-lobed. Pepo large. Seeds thick at edge ............... CucrRBiTA. 



o-cleft. Pepo large. Seeds colored, thick -edged ..... ---- CITRULLUS. 7 



Seeds white, ncute-edged .......... CI-CUMIS. 8 



1. ECHINOCYSTIS, Torr. <fc Gray. (Gr. e^tvof, sea urchin, 

 bladder ; alluding to the spiny, inflated fruit.) Flowers monoecious. 

 Sterile fl. Calyx of 6 filiform-subulate segments, shorter than the cor- 

 olla ; petals 6, united at base into a rotate campanulate corolla ; sta- 



