Barbarea, R. Br. (Winter Cress.)

B. vulgaris, R. Br. Too common ; a troublesome weea.

B. prcecox, R. Br. (Early Winter Cress.) (Scurvy Grass,) escaped from cultivation-- Riverdale, (Bicknell.)

Sysymbrium, L. (Hedge Mustard.)

S. officinale, Scop. About dwellings. (Nat. Eu.)

S. Thaliana, Gaud. About dwellings. (Nat. Eu.)

S. Alliaria, Brown. Kings Bridge. (Bicknell -- Adv. Eu.)

Hesperis, L.

H. matronalis, L. Introduced from the west. (Bicknell.)

Brassica, Toum. (Mustard,)

B. Sinapistrum. Boissier. Cultivated grounds. (Adv. Eu.)

B. alba, Gray. In cultivated grounds. (Adv. Eu.)

B. nigra. Gray. Cultivated grounds. (Adv. Eu.)

B. campestris, L. Escaped from cultivation. (Bicknell.)

B. oleracea, L. Escaped from cultivation. (Bicknell.)

Draba, L. (Whitlow Grass.)

D. Caroliniana, Walt. Not rare.

D. verna, L. Mott Haven, along the railroad.

Camelina, Crantz. (False Flax.)

C. sativa, Crantz. Cultivated grounds. (Adv. Eu.)

Capsella, Vent. (Shepherd's Purse.)

C. Bursa-pastoris, Mcench. About dwellings. (Nat. Eu.)

Lepidium, L. (Pepper Grass.)

L. Virginicum, L. About dwellings ; used sometimes for salad. Li. campestre, L. Bicknell. (Nat. Eu.)

Bapbanus, L. (Radish.)

R. Raphanistrum, L. Common, and troublesome weed. (Adv. Eu.) B.. sativus. L. Escaped from cultivation. (Bicknell.)

Order 11. -CAPP ARIL ACES. (Caper Family.)

Polanisia, Raf.

P. graveolens, Raf. Peekskill, (Mead.)

OF WESTCHESTER COUNTY.

Order 12.-- RESIDACEJE. (Mignonette Family)

Reseda, L.

R. Luteola, L. Roadsides. (Adv. Eu.)

Order 11-VI0LACE(E. (Violet Family.) Solea. DC. (Green Violet.)

S. concolor, Ging. Near Tarrytown, not common. (Hall.)

Viola, L. (Violet.)

V. rotundifolia, Mx. Near Spuyten-Duyvil, and White Plains, sparingly throughout.

V. lanceolata, L. Near Peekskill. (Le Roy.)

V. primulxfolia, L, Wet grounds throughout the County.