130 PRACTICAL BOTANY. 



the short stamens (wanting sometimes). Flowers in axillary- 

 clusters. Rhamnus (661). 



Leaves opposite, serrate. Fruit a pod, 3- to 5-lobed, 

 crimson, when ripe. Stamens very short, on a broad, 4- 

 angled disk, which is stretched over the ovary. Branchlets 

 4-sided. Flowers small, dark purple, in loose cymes, on 

 axillary peduncles. Euonymus atropurpureus, Jacq. 



104. Calyx of 4 sepals. Petals long-clawed. Leaves 

 pinnately 5- to 11-foliolate, the terminal leaflet largest. 



Cardamiue hirsuta, L. (121). 



Calyx globular, or bell-shaped, 4-angled, 4-toothed, 

 with a small horn at each sinus. The petals small, purplish, 

 deciduous (or wanting). Stamens ^, short. Leaves opposite, 

 linear-lanceolate. Ammanuia (669). 



CRUCIFERS. 



[The genera of this family can not be identified without a thorough 

 examination of the fruits.] 



105. (99.) Pods jointed transversely — that is, pods com- 

 posed of 2 or several pieces, which at maturity separate across ; 

 loments 106 



Pods not jointed across, but 2-carpelled, 2- 

 valved and 2-celled by a false partition, stretched between 

 the 2 placentae, and opening, at maturity, lengthwise by the 

 valves ; rarely 1-celled from the incomplete partition.. . .107 



106. Loments short, 2-jointed, each joint 1-celled and 

 1 -seeded, the lower sometimes seedless, the upper sword- 



' shaped. Fleshy. Leaves obovate, sinuate and toothed. 



Caldle Americana, Kutt. 



Loments elongated, tapei'ing upward, linear or ob- 

 long, 2-jointed, the lower joint often seedless and stalk-like, 

 the upper necklace-form, several-seeded; the seeds, by con- 

 striction, transversely intercepted. Leaves lyre-shaped. 



Raphanus Raphauistnun, L. 



