CUCURBITACE&. 231 



C. LUTETIANA (Enchanters Nightshade). Stem erect, branching, pu- 

 bescent above ; leaves opposite, ovate ; flowers small, white, or pale rose- 

 color, in elongated, naked racemes ; bracts none ; calyx reflexed ; fruit cov- 

 ered with hooked bristles. Plant 1-2 feet high. 



Order XXXVIL CUCURBITACE.E. 



Succulent herbs, climbing, or creeping by tendrils. Leaves 

 alternate, palmately lobed and veined, coarse and rough. Flowers 

 monoecious, or polygamous. Calyx 5-lobed. Petals 5, united to- 

 gether, attached to the calyx, very cellular, and much reticulated 

 in structure. Stamens 5. Anthers very long, variously wavy and 

 contorted, 2-celled. Ovary adherent to the calyx-tube, i-celled, 

 with 3 parietal placentas. Fruit a pepo, rarely membranous, and 

 i-4-seeded. Seeds flat. 



f Both kinds of flowers solitary Cucurbita. 

 CUCURBITACE^E. \ [Sterile flowers clustered Cucumis. 



f Flowers large \ 



u 



Flowers small, fruit i-seeded Sicyos. 

 BEGONIACE^E. Begonia. 



1. Sicyos. Flowers monoecious. STERILE FLOWERS Calyx 5- 

 toothed ; teeth subulate or minute. Corolla rotate. Stamens 5, mona- 

 delphous, or in 3 parcels. Anthers contorted. FERTILE FLOWERS 

 Calyx campanulate, 5-toothed, contracted above. Petals 5. Fruit 

 ovate, membranaceous, hispid or echinate with spiny bristles. Seed 

 large. 



S. ANGULATUS (Wild Cucumber). Stem climbing by tendrils, branching, 

 hairy ; leaves roundish, cordate at base, 5-angled, 5-lobed ; lobes acuminate, 

 denticulate ; tendrils 3-5-cleft ; flowers whitish ; sterile ones in crowded ra- 

 cemes, on long peduncles ; fertile ones on short peduncles, smaller ; both 

 usually from the same axils ; fruit somewhat spiny, in crowded clusters, each 

 containing one large seed. July. 



2. Cucumis. Flowers monoecious or perfect. Calyx tubular- 

 campanulate. Corolla deeply 5-parted. STERILE FLOWERS Stamens 

 5, triadelphous. FERTILE FLOWERS Style short. Stigmas thick, 2- 

 parted. Pepo fleshy. Seeds ovate, without margins. 



1. C. SATIVUS (Cucumber). Stem rough, prostrate and trailing ; ten- 

 drils simple ; leaves palmately 5-angled or lobed ; lobes nearly entire, acute ; 

 the terminal one longest ; fruit oblong, obtusely angled, on a short peduncle, 

 prickly when young ; flowers yellow, solitary, axillary. Cultivated for its 

 green fruit. June-September. 



2. C. MELO (Musk-melon). Stem prostrate, trailing, rough ; tendrls 

 simple ; leaves roundish, palmately 5-angled or lobed ; lobes rounded, ob- 

 tuse ; flowers sterile, fertile, and perfect, yellow ; fruit oval or sub-globose. 

 Cultivated. June- July. 



