#* 



153 



Cotyledons Jlat, incumbent. 



334.. SISYMBRIUM. Pod nearly cylindrical. Stigma 

 capitate, notched. 



339. HESPERIS. Pod/ inaccurately quadrangular. Stig- 

 ma nearly sessile, of 2 converging lobes. Col. closed; 

 with 2 protuberances at the base. Seeds not bor- 

 dered. 



336. ERYSIMUM. Pod quadrangular. Stigma capi- 

 tate, notched. 



*** Cotyledons foldedy incumbent. 



342. BRASSICA. Pod nearly cylindrical, beaked, with 



2 valves. Seeds neai'ly globular. Cal. closed. 



343. SINAPIS. Pod nearly cylindrical, somewhat beak- 



ed, with 2 valves. Seeds nearly globular. Cal. 

 spreading. 



344. RAPHANUS. Pod tumid, imperfectly jointed, 



without valves. Seeds globular. 



This whole class, except the exotic genus Cleome, which 

 has been forced into it, constitutes an entirely natural 

 order, the Cniciferce of recent authors ; which is indeed 

 so natural and distinct, that we can hardly trace the least 

 affinity between it and any other tribe. The artificial sy- 

 stem leaves it undisturbed ; not requiring the separation of 

 any genus from the rest, nor properly introducing any that 

 tloes not belong to them ; for whatever may become of 

 Cleome, it ought not to encumber this class, to which it 

 has no natural affinity, nor has it even the artificial cha- 

 racter, except in a very few species. 



Cruciferce. Juss. 63. DeCand. Syst. v. 2. 139. SiliquoscB. 

 Linn. 39. 



Flowers all complete and pei-fect, having a calyx and corolla, 

 with stamens and pistil, in every individual. 



Calyx inferior, of 4 ovate-oblong, concave, obtuse, usually 

 converging leaves, opposite in pairs; prominent at the 

 base ; very sleek within ; deciduous. 



Corolla what is termed cruciform, Introd.f. 156, 157, con- 

 sisting of 4 petals, alternate with the calyx, almost inva- 

 riably regular and equal; their claims erect, tapering 



