CLASS XV. ORDER I. 267 



Syn. Thlaspi Virginianum. Poir. 



Frequent by road sides, flowering during most of the sum- 

 mer and autumn. Stem woody and branching, round, smooth. 

 Branches numerous, alternate. Leaves of the root pinnatifid, of 

 the stem lanceolate, glabrous, furnished with a remote tooth or 

 two. Racemes terminal, long, naked. Pedicels capillary. Flow- 

 ers very small, diandrous, white. Silicles flat, orbicular, with a 

 deep notch in the end. Taste like common Garden cress or 

 peppergrass. 



2S6. THLASPI. 

 Thlaspi Bursa pastoris. L. Common Shepherd's Purse. 

 Hairy, silicle inversely heart shaped, somewhat tri- 

 angular; radical leaves pinnatifid. iSm. 



Equally common with the last, in pastures and road sides con- 

 tinuing to flower during most of the vegetating season. Stem 

 branching, round. Root leaves numerous, spreading, pinnatifid, 

 toothed, somewhat hairy. Stem leaves oblong, toothed, arrow 

 shaped at base, closely sessile. Flowers small, white. Silicle 

 smooth, inversely heart shaped, crowned with the short style. — 

 Annual. 



287. BUNIAS. 

 * BuNiAS EDENTULA. Flor. Bost. Ist Edit. Atnerican Sea 



RocJcet: 



Bimias foliis obovatis, sinnatis ; siliculis glabris, 

 articidis binis, mo7iospermis, edentuUs. 



Leaves obovate, sinuate; silicles with two smooth, 

 one-seeded, toothless joints. 

 Syn, Cakile Americana. Nutt. 



A fleshy, maritime plant, found on various parts of the sea 

 coast. Stem glabrous, flexuous, deeply and irregularly furrowed, 

 very much branched. Leaves fleshy, smooth, obovate, toothed 

 and sinuated, caducous. Branches axillary, leafy. Spikes or 

 racemes terminal. Flowers on short, fleshy peduncles. Calyx 

 of four erect, fleshy segments. Petals spreading, rounded at the 



