HI GARDEN BOTANY. 



M. crystallinum, called Ice-plant, because the oval and wavy alter- 

 nate leaves and the branches look as if frosted over with white transparent 

 vesicles ; flowers white, small. 



Okder GROSSULACEJ3. Currant Family. 



Manual, p. 136. — The cultivated Currants and Gooseberries generally met 



with are, — 



1. Ribes Grossularia, Garden Gooseberry. Prickly ; leaves obtusely 

 3-5-lobed ; flowers solitary or in pairs on short pedicels, green ; calyx cam- 

 panulate; berry large, prickly or smooth. 



R. rubrum, Common Currant, with flat greenish flowers in hanging 

 racemes, and red berries, also a white variety. See Man. p. 137. 



R. nigrum, Garden Black Currant, has black berries, like those of 

 our R. floridum, but the greenish flowers are fewer in the racemes and shorter, 

 and the bracts minute. 



R. aureum, Buffalo or Missouri Currant, from the Far West, with 

 smooth 3-lobed leaves and a tubular calyx, is planted for its bright-yellow 

 spicy-scented flowers, appearing in early spring; berries blackish, useless. 



R. sanguineuni, Red flowered Currant, from Oregon and Cali- 

 fornia, has rounded and 5-lobed leaves, downy beneath, and hanging racemes 

 of red or rose-colored flowers ; cultivated for ornament. 



R. speciosum, Showy Gooseberry, from California, a prickly species, 

 with small and shining leaves, deep-red hanging flowers, and long-exserted 

 red stamens ; when trained on a wall and protected is a beautiful species. 



Order PASSIFLORACE.2EL Passion-Flower Family. 



Manual, p. 138. — Out of a number of Passion-Flowers of conservatories, the 

 following are commonest, and may he planted out in summer. 



1. Passiflora caerulea. Leaves deeply 5-Iobed, the lobes narrow and 

 not serrate ; crown blue of varied tints, purple at the base, shorter than the 

 white corolla. 



P. edulis, Granadilla. Leaves shinin^-preen, large, 3-lobed, the 

 lobes and bracts serrate ; flower pale blue or whitish ; fruit eatable. 



Order CUCURBITACEJE. Gourd Family. 



Manual, p. 138. — A few are cultivated for ornament, and others for their 



edible fruit. 



Corolla 6-parted, small : fruit soft-prickly, 2-celled, 4-seeded. Man. p. 139. ECHINOCYSTIS. 



Corolla moderately 5-lobed, bell-shaped, large, yellow. ... 1. CUCURBITA. 



Corolla of 5 almost separate large and white petals. ... 2. LAGENARIA. 



Corolla 5-cleft beyond the middle, buff or sulphur-color. . . 3. CITRULLUS. 



Corolla 5-parted to the calyx, or nearly of 5 petals, yellow. . 4. CUCUMIS. 



Corolla 5-parted, white, the divisions cut into a delicate fringe. 5. TRICIIOSANTHES. 



1. Cucurbita. The common Pumpkin and the Squashes, in great variety, 

 are shown by a recent investigation to belong to only two botanical species 

 the fruit of each of which is immensely variable. 



C. Pepo, Pumpkin. Winter Squash, &c. Stalks and veins of tho leaves 

 very rough with hispid hairs, almost prickly ; leaves more or less 5-lobed ; 



