120 CAPPARIDACEiE. Cleomella. 



1. R. Raphanistrum (Linn.) : silique terete (joints 1-seeded), moniliform 

 and 1-celled when mature, longer than the style ; leaves simply lyrate.— J9C. 

 prodr. 1. p. 229 ; Bigel. fl. Bost. p. 252. 



Road-sides and in fields, New-England. June-July. Introduced, but 

 hardly naturalized.— (l) Corolla veiny, yellow, white in decaying. Silique 

 3-8-seeded. — Wild Radish. 



Discovium Ohioense, Raf. in jour. phys. 89, (1819) p. 96, and DC. prodr. 1. p. 

 236, is so imperfectly described that it cannot be identified. It is probably a 

 Thlaspi or a Lepidium. 



Order XV. CAPPARIDACE.^. Juss. 



Sepals 4, deciduous or marcescent, distinct or somewhat united and 

 imbricated in ajstivation, or cohering in a tube with a valvate estiva- 

 tion. Petals 4, hypogynous, cruciate or irregular, usually unguic- 

 ulate and more or less unequal, sometimes wanting. Stamens 6-12 

 (rarely 4), or numerous, but usually some multiple of 4, inserted on 

 the short or sometimes elongated torus : filaments equal or unequal : 

 anthers innate or introrse, mostly revolute when dry. Ovary often 

 stipitate, composed of 2 (very rarely of several) united carpels, with 

 2 parietal placentae : styles united into one, often filiform, sometimes 

 short or almost none : stigma often discoid or subcapitate. Fruit 1- 

 celled, either a pod-shaped (siliqueform) 2-valved capsule, with the 

 valves often separating from the persistent filiform placenta (rarely 

 coriaceous and nearly or quite indehiscent), or baccate, very rarely 

 1-2-, usually many-seeded. Seeds campulitropous, reniform, with no 

 albumen, but the lining of the testa often thickened. Embryo curved : 

 cotyledons foliaceous, somewhat incumbent. — Herbs, shrubs, or rarely 

 small trees, with a watery acrid juice which sometimes has the pun- 

 gent taste of the Crucifera?. Leaves alternate, petioled, simple or 

 palmately compound : leaflets mostly, entire. Stipules none, or with 

 spines in their place. 



Teiee L CLEOME^. DC. 



Capsule membranaceous, dehiscent, (rarely subcoriaceous and inde- 

 hiscent). — Leaves mostly compound. 



1. CLEOMELLA. DC. prodr. 1. p. 237. 



Sepals very small, distinct, spreading. Petals 4, subspatulate, subsessile. 

 Torus short, oblong. Stamens 6 : filaments incurved in aestivation. Pod 



