428 PATAGONIAN EXPEDITIONS I BOTANY. 



Species 12, subtropical in Old World and Austral.; in N. Amer.; and 

 the following: 



i. CORONOPUS AUSTRALIS (Hook. f. sub Senebiera.] 



With sparse spreading hairs. Stems diffuse, ascending, branching. 

 Leaves subpinnatifid with incised lobes. Silicles on long pedicels, rather 

 large, slightly reticulate. 



Patagon., by Lago Argentine ; Isla Pavon in R. Sta. Cruz.; Chonos 

 Archip.; (also in Jamaica and S. United States.) 



Allied to C. pinnatifidus of Eur. and of N. and S. Amer. 



2. C. CORONOPUS (L.) Karst. C. coadunatus Stokes, C. didymits L. 

 (non Smith), Senebiera pinnatifida (DC.). 



Leaves pinnatifid, the lobes entire or toothed or pinnatifid. Sepals 

 roundish, their margins whitish, membranaceous. Pedicels stout. 5/7- 

 icles acutish, their valves crested and wrinkled ; 4 mm. broad by 3 mm. 

 high. 



(Eur., nat. in N. Amer.) Fuegia, at Ushuaia, rare, in dry meadows. 

 N. Patagon., plains near Carmen. 



3. C. DIDYMUS Smith. 



Silicle-valves not crested, only 2 by i mm. Pedicels slender. (Fig. 

 in Eng. and Prantl, iii, 2, p. 161. 



S. Amer. and northwards in N. Amer., Old World, and N. Austral. 



\ 



4. C. RHYTIDOCARPUS (Hook, sub Senebiera]. 



Slender procumbent, branching. Leaves entire or pinnatifid, with few 

 segments, acute. Corymbs small, of few minute flowers. Sepals concave. 

 Petals at least sometimes none. Stamens 2 ? Silicle orbicular, rugose. 



Patagon. 



6. THLASPI Linn. 



Erect, glabrous herbs, with basal, rosulate leaves, and upper cauline 

 leaves auriculate and clasping. Flowers white or purplish. Silicles 

 mostly emarginate, flat, with narrow septum. Seeds 2 or more in each 

 cell. Cotyledons accumbent. 



Species 60, Eurasian ; most in Mediterr. region, with outliers in Aus- 

 tral., N. Amer. and Chili. 



