120 TETRADYNAMIA SILIQUOSA. SitiapiS, 



dice/s expanding. Calyx linear, expanding". Petals obovate, 

 bright yellow. Stamens longer than the claws of the petals. 

 Siliques linear, straight, expanding, Irom one to two inches 

 long, turgid at the seeds, otherwise smooth, somewhat verti- 

 cally compressed ; beak very short, one-sixth the length of 

 the silique, tapering to a point. Seed in each cell, one row, 

 and rather remote, round, dark brown, beautifully rugose. 



4. S. brassicata. TVilkl. iii. 555. 



Annual. Radical leaves long-petioled, obovate, almost en- 

 tire ; the superior ones stem-clasping. Calyx longer than the 

 claws of the petals ; the two shorter stamens nearly hid. 



Chin. Pak-tsoi. 



Is a native of China, from thence the seeds were procured, 

 sent to the Botanic garden by Mr. John Miller. 



Boot in Bengal annual. Stetn scarcely any, till in blossom, 

 and then the whole plant is uncommonly ramons, and from 

 four to six feet high in our rich soil of Bengal. Leaves, the 

 radical ones obovate and oval, generally entire, recurved, 

 pretty long, erect, somewhat incurved, smooth, shining, Avith 

 white petioles, margins waved, sometimes a litile lobate, or 

 even lyrate toward the base, smooth on both sides ; nerve 

 and veins white like the petioles; stem and floral leaves 

 stem-clasping, linguiform or lanceolate, obtuse, generally en- 

 tire. Inflorescence as in the common cabbage, /^lowers nu- 

 merous, large, of a bright yellow. Calyx ; leaflets linear, ob- 

 tuse, concave, rather longer than the claws of the petals. Sta- 

 mens the shorter pair nearly hid within the tube formed by 

 the claws of the petals, with the apices of their anthers recurv- 

 ed, while the apices of the superior four are incurved over 

 the stigma. Style rather shorter than the four long stamens. 

 Siliques expanding, on pedicels half their length, sub-cylin- 

 dric, smooth ; beak one-third their length, tapering. Seed 

 round, dark brown, somewhat rugose. 



