62 



PHANEROGAMIA. 



oblong or ovate-lanceolate, and clasping by a very deep and narrow 

 cordate sinus, entire, veinless, probably of a fleshy texture when living. 

 Racemes loose; the pedicels 2 or 3 lines long, not bracteate. Sepals 

 smooth, membranaceous, greenish, oval-oblong, rather lax. Petals 

 obovate-spatulate, conspicuously unguiculate (the claws about the 

 length of the calyx), apparently white or rose-colour, 3 lines long. 

 Anthers linear, sagittate. Siliques very slender, filiform, an inch or 

 more in length, terete, glabrous, not stipitate, widely spreading, tipped 

 with a depressed-capitate, nearly sessile stigma; the valves nerveless 

 or nearly so. Seeds numerous in a single series in each cell, oblong, 

 surrounded by a hyaline pellicle. None of them are sufficiently 

 matured to show the nature of the embryo; but, from the narrow 

 shape of the seed, the cotyledons are doubtless incumbent. (Sisym- 

 brium amplexicaule, Desf. = Sinapis amplexicaulis, DC) 



13. LEPIDIUM, Linn., R. Br. 

 1. Lepidium Bonariense, Linn. 



L. Bonariense, Linn.; DC Syst. 2, p. 543; Gay, Fl. Chil. 1, p. 164. 

 Thlaspi Bonariense, etc. Dill. Hort. Elth. p. 281, t. 286, f. 370. 

 T. Bonariense & T. muUifidum, Poir. Diet. 7, p. 543, 545. 



Hab. Rio Negro, North Patagonia ; on sand-hills. 



2. Lepidium bipinnatifidum, Desv. 



Lepidium bipinnatifidum, Desv. Jour. Bot. 3, p. 177; DC. Syst. 2, p. 544; Gay, Fl. 

 Chil. 1, p. 165. 



Hab. Obrajillo, Peru. (Also, Quito, Antisana, &c, Jameson.) 



3. Lepidium euderale, Linn. 



Hab. Puen Buen, New South Wales. Introduced from Europe. 

 But it was long ago gathered in New Holland by Labillardiere. 



