MACLOSKIE I CRUCIFER^E. 427 



6. LEPIDIUM SPICATUM Desv. 



Leaves linear, entire, or the lower pinnatifid, glabrous. Flowers small. 

 Silicle orbiculate, emarginate, rather exceeding the pedicel ; its valves 

 carinate, wingless. Style short. 



(Chili ; Brazil) ; Patagon., by R. Sta. Cruz; Magellan ; Fuegia, Ushuaia. 



4. DELPINOELLA Speg. (Nova Addenda ad Floram Patagonicam, 



p. 227.) 



(Cruciferacea lepidinea.} Sepals equal at the base, not saccate. Petals 

 linear, entire. Stamens 6, free, not toothed. Silicles didymous, laterally 

 compressed, slightly retuse at apex, the valves turgid, coriaceous, i-locular, 

 ventrally gaping by a chink, dorsally callus-marginate, externally rugose, 

 \-seeded. Style persistent, longish, thickish ; stigma capitellate subentire. 

 Seeds -solitary and pendulous in the locules, obovate, rostrate, immarginate 

 (rimless) ; testa membranaceous with a thin muciparous tunic ; endosperm 

 mucous, sparse ; embryo largish, green ; cotyledons incumbent; radicle 

 very long, scarcely curving, superior. 



A woody glabrous undershrub, with very short branchlets at the tops 

 of the branches densely botryose-cespitose ; leaves minute, ovate, densely 

 imbricate ; flowers small solitary, subsessile on acrogenous branchlets ; 

 fruit largish, glabrous. 



(Allied to Coronopus by the structure of the silicle.) 



D. PATAGONICA Speg. 



Densely cespitose, green ; branches subdichotomous. Leaves narrow, 

 somewhat acutish, and somewhat subcarinate. Flowers white. Silicles 

 surrounded by the persistent sepals which are scarcely accrescent. 



Patagonia, in the dry, rocky, high plane between San Julian and Rio 

 Deseado. Resembling in habit Bray a Pycnophylloides Speg. and Bentha- 

 miel la Pycnophylloides Speg., and having a long vertical root. 



5. CORONOPUS Gaertn. (Senebiera Poir.) 



Leaves mostly pinnatifid. Flowers small, whitish. Stamens often 2 

 or 4. Silicle small, didymous, flattened with a narrow septum ; its cells 

 i-seeded, indehiscent, falling away as mericarps. Cotyledons incumbent 

 or conduplicate. 



