CRUCIPER^. 57 



T. virens, Jord. — This form is distinguislied by its lively green 

 colour and by bearing larger flowers than either of the preceding. 

 The pouch is narrowly winged, and the style is exserted (consi- 

 derably longer than the lobes) . Matlock Bath. Perennial ; May. 



HuTCHiNSTA, Br. — Annual or perennial plants, with pinnate, 

 pinnatifid or undivided leaves and white flowers. Sepals equal 

 at the base. ' Filaments not enlarged at the base (without a basal 

 appendage) . Pouch elliptical, dorsally compressed, entire at the 

 apex; valves keeled at the back (keeled dorsally), not winged. 

 Seeds ovate, pendulous, two or more in each cell. 



H. petrsea, Br. Rock Hutchinsia. — e.b. 111. l.b.s. 64. 

 A. 6. CIO. Lat. 51-55°. Alt. OP-450 yds. Tern. 49-44°. 



Roots fibrous, slender, annual. Stems several, 2-4 inches 

 high, erect or ascending, round, wiry, pubescent, leafy. Leaves 

 pinnate, with numerous, elliptic-oblong, entire leaflets. FloAvers 

 white, small, corymbose. Pouches in clusters, oblong, obtuse, 

 slightly notched, spreading, not half so long as their pedicels. 



Limestone rocks, Yorkshire and Derbyshire. Annual ; March- 

 May. — Has long been known to grow on the churchyard wall at 

 Eltham, Kent. The writer observed it on this locality about 

 twenty-five years ago; it was noticed also in 1853. 



Iberis, Lin. — Herbaceous or somewhat shrubby plants, with 

 entire or pinnatifid leaves, and white or purple irregular flowers. 

 Sepals equal. Petals very unequal, the outer pair much larger 

 than the inner pair. Pouch ovate, dorsally compressed, notched 

 or two-lobed at the apex ; valves keeled, and often winged. Seeds 

 ovate, pendulous, one in each cell. 



I. amara, L. Bitter Candytuft. — e.b. 52. l.b.s. QQ. 



A. 2. C. 6. Lat. 51-53°. Alt. 0-100 yds. Tern. 49-48°. East 

 part of England. 



Stems erect, branching from the summit or from the base, 

 angled, furrowed. Leaves scattered, usually toothed, oblong, 

 obtuse, tapering below. Flowers white, in short corymbose clus- 

 ters. Sepals beautifully coloured at the tips and margins, ovate 

 and spreading. Petals very unequal, oblong or obovate, with a 

 very narrow, slender claw. Pouches winged from the base, with 

 pointed lobes, which are shorter than the persistent style. 



Fields in Berkshire (Pangbourne and Streatly), and Kent 

 (Greenhithe). Annual; June-October. 



8 i 



