16S TETRADYNAMIA— SILICULOSA. Hutchinsia. 



moreover entirely destitute of the minute concave scales, so cha- 

 racteristic of L. campestre. The shjle is full twice as long as 

 the lobes of the border. Seeds solitary. Cotyledons incumbent, 

 as I have found them on examination, and as there is no room 

 to doubt their being in L. campestre, so that the more obvious 

 character of the solitary seeds is thus confirmed, and the true 

 genus of these plants perfectly established. Ray well knew this 

 species, and the old figures, of which those of the two Bauhins 

 only are original, answer perfectly to our plant, though Hudson's 

 Thlospi hirtum is but a variety of campestre. 



322. HUTCHINSIA. Hutchinsia. 



Br. in Ait. H. Kew.v. 4. 82. Comp. ed. 4. 107. DeCand. Syst. v. 2. 

 384. 



Cal. equal at the base, with spreading, elliptical, concave, 

 equal leaves, deciduous. Pet. obovate, undivided. Filam. 

 simple. Anth. roundish. Germ, oval, compressed. Style 

 various. Stigma obtuse. Pouch elliptic-oblong, trans- 

 versely compressed, nearly entire, of 2 cells ; valves keel- 

 shaped, not bordered; partition narrow, crossing the 

 greater diameter of the pouch. Seeds 2, or more, in each 

 cell, pendulous, ovate; cotyledons accumbent. 



Herbs various in habit, perennial, or annual. Leaves undi- 

 vided, pinnatifid, or pinnate, smooth, a little succulent. 

 Fl. white or reddish, never yellow. 



1. H. pelro'a. Rock Hutchinsia. 



Leaves pinnate, entire. Petals scarcely equal to the calyx. 

 Stigma sessile. Seeds two in each cell. 



H, petraea. Br. in Ait. H. Kew. v. 4. 82. Comp. ed. 4. 110. De- 

 Cand. Syst. V. 2. 389. Hook. Lond. i. 31. 



Lepidium petraeum. Lin7i. Sp. PI. 899. Willd. v. 3. 434. Fl. Br. 

 681 . Engl. Bot. v. 2. 111. Jacq. Austr. t. 131. 



L. Linnaei. Crantz Austr. fasc. \.7. t. 2./. 4, 5. 



Nasturtium n. 515. Hall. Hist. v. 1. 222. 



N. petrseumannuum nostras. Pluk.Almag.262. Phyt. t.206.f.4. 



N. pumilum vernum. Bauh. Pin. 105. Moris, v. 2. 301. sect, 3. 

 t. 19./. G. 



Nasturtiolum montanum annuum tenuissime divisum. Rail Syn. 

 304. 



Cardamine pusilla saxatilis montana discoides. Column. Ecphr. v. I . 

 274. t. 273. 



Fine Cress. Petiv. H. Brit. t. 50. f. 4. 



On limestone rocks, and walls, in the south of Britain. 



On the rocks about Goram's chair, near Bristol, Richard Koyle, and 



