CAPPARIDACE.E. (CAPER FAMILY.) 31 



with the radical leaves clustered arid piunatifid ; those of the stem clasping 

 and often entire. Kacemes elongated. Silicic shorter than the spreading 

 pedicel. Flowers white. 



1. C. Bursa-pastoris, Moeuch. Waste ground. March- April. 

 Introduced. 



20. CAKILE, Tourn. SEA MUSTARD. 



Lomeut 2-joiuted, the joints thick, 1-celled, 1-seeded. Seed of the upper 

 joint erect, of the lower suspended. Cotyledons accumbeut. Fleshy seaside 

 annuals, with pinuatifid or lobed leaves, and racemose white or purple flowers. 



1. C. maritima, Scop., var. SBqualis, Chapm. Glabrous; stem much 

 branched, l-2 high; leaves oblong-obovate, toothed or piunatifid, petioled; 

 petals wedge-shaped, pale purple; loment (dry) silicate, 6" -8" long, short- 

 stalked, the upper joint beaked, larger than the lower one. Drifting sands 

 along the coast. May - Sept. 



ORDER 12. CAPPABIDACE^. (CAPER FAMILY.) 



Herbs, shrubs, or trees, with acrid watery juice, alternate, simple or 

 palmately compound leaves, and regular hypogynous flowers. Stipules 

 spiny or wanting. Sepals 4, imbricated or valvate in the bud. Petals 

 4, mostly clawed. Stamens 6 or numerous. Ovary 1-celled : ovules 

 amphitropous or campylotropous, attached to the two parietal placentae. 

 Fruit silique-like, and 2-valved or indehiscent. Seeds renii'orm, with- 

 out albumen. Embryo curved. 



Synopsis. 



* Calyx 4-septalous. Herbs. 



1. POLANISIA. Stamens 8 - 32, free. Torus short. Style filiform. 



2. CLEOME. Stamens G, free. Torus short. Stigma sessile. 



3. GYNANDROPSIS. Stamens G. Filaments partly united with the stipe of the ovary. 



* * Calyx 4-parted. Shrubs. 



4. CAPPARIS. Stamens numerous, free. Leaves entire. 



1. POLANISIA, Raf. 



Petals clawed. Stamens 8-32: filaments free, unequal, filiform. Recep- 

 tacle short, bearing a truncated or emarginate gland on the upper side. Ovary 

 sessile or short-stipitate. Style filiform. Capsule silique-like, many-seeded. 

 Annual clammy herbs, with palmately trifoliolate petioled leaves, and race- 

 mose flowers. 



1. P. tenuifolia, Torr. & Gray. Stem slender, erect, branching ; leaf- 

 lets filiform, longer than the petiole ; petals oval, entire, short clawed, unequal ; 

 stamens 12-15; capsule linear, smooth, short-stipitate, pointed with the per- 

 sistent style; seeds minute, circular. Georgia (Le Conte) and Sorith Florida 

 (Blodfjett).-^tem 1 -2 high. Flowers white. 



2. P. graveolens, Raf. Glandular- pubescent, branching, 6' -18' high; 

 leaflets oblong or lanceolate; petals cuneate, notched. 4" Jong, yellowish 



