9. GLYCE.

Silicula nearly ovate; valves flattish; cells one-seeded; the umbilical

cords adhering by the base to the septum.

Seeds usually bordered.

On cliffs and other places near the sea. Annual. July, August.

I am unwillingly obliged to reject Mr. Brown's name of Koniga, on account of its too close resemblance in sound and meaning to Königia. The meaning of the word now proposed is obvious.

10. DRABA Linn. WHITLOW-GRASS.

Silicula sessile, oval or oblong; valves flat or convex. Seeds numerous, not margined. Calyx equal. Petals entire. All the stamens without teeth. Dec.

1. D. aizoides Linn.

E. B. 18. 1271.

Stalks solitary, naked. Petals slightly notched, twice the length of the calyx. Leaves lanceolate, rigid, keeled, fringed. Smith. On walls and rocks in South Wales. - Perennial. March, April.

2. D. rupestris R. Br. Stalk nearly leafless.

Petals undivided.

E. B. 19. 1338. Silicula elliptic-oblong.

Leaves lanceolate, slightly toothed, fringed with simple hairs.
Smith.

D. hirta Linn.

On rocks in the Highlands of Scotland. - Perennial. May, June. 3. D. incana Linn.

E. B. 6. 388.

Stem-leaves numerous, hoary, like the stem, with close starry pubescence. Silicula elliptic-oblong, oblique or twisted, longer than the hairy partial stalks. Smith.

D. contorta Dec.

On alpine limestone rocks in the north. - Biennial. May, June.

4. D. muralis Linn.

E. B. 13. 912. Stem branched. Leaves heart-shaped, toothed, hairy. Silicula elliptical, obtuse, flat, shorter than the partial stalks. Smith.

On the shady sides of limestone mountains, or on walls, rare. — Annual. April, May.

11. EROPHILA Dec.

Silicula oval or oblong; valves flat.

Seeds numerous, not bordered.

Calyx equal. Petals divided in two. Stamens not toothed. Annuals, with naked scapes and white flowers. Dec.

12. COCHLEARIA Linn.

SCURVY-GRASS.

Seeds

Silicula sessile, ovate, globose, or oblong; valves ventricose. numerous, not bordered. Calyx equal, spreading. Petals entire. Stamens not toothed. Flowers white. Leaves usually fleshy. Dec.

1. C. officinalis Linn.

E. B. 8. 551. Radical leaves roundish; those on the stem oblong and somewhat sinuated. Silicula globose. Smith.

On the sea coast, in stony or muddy situations, abundantly. Annual. May. 2. C. grænlandica Linn. E. B. 34. 2403. Leaves kidney-shaped, fleshy, entire; uppermost oblong. Silicula globose. Smith.

On the mountains of Clova, Angus-shire, and at Loch-ne-gare. Mr. G. Don. Annual. August.

3. C. anglica Linn.

E. B. 8. 552. Radical leaves ovate, entire; those on the stem sessile, lanceolate, and toothed. Silicula elliptical, strongly reticulated with veins.

Smith.

On the muddy sea shore, and about the mouths of large rivers, in many places. - Annual. May.

4. C. danica Linn.

E. B. 10. 696. Leaves all triangular and stalked. Silicula elliptical, reticulated with veins. Smith.

B. integrifolia; cauline leaves very few; radical reniform : all entire.

Dec.

On the sea coast, in a muddy soil, but rare. B. At the Giants' Causeway in Ireland. Annual. May, June.

5. C. Armoracia Linn. Horse-radish.

E. B. 33. 2323.

Radical leaves oblong, crenate; those of the stem lanceolate, either cut or entire. Smith.

In waste places; generally an outcast from gardens. Perennial. May.

Tribe iii. Thlaspideæ Dec.

Silicula dehiscing; septum very narrow; valves keeled, navicular. Seeds oval, sometimes bordered. Cotyledons flat, accumbent, at right angles with the septum.

13. THLASPI Linn.

Silicula emarginate; valves navicular, winged at the back; cells two or many-seeded. Petals equal. Calyx equal at base. Dec.

1. T. arvense Linn. Mithridate Mustard, or Penny Cress.

Silicula orbicular, nearly flat, shorter than its stalk. oblong, toothed. Stem erect. Smith.

E. B. 24. 1659.
Leaves smooth,

In cultivated or waste ground, but not common. Annual. June, July.

2. T. perfoliatum Linn.

E. B. 33. 2354.

Silicula inversely heart-shaped. Stem-leaves heart-shaped, rather sharp at the base, clasping the branched stem. Style very short. Smith.

Among the stone-pits about Burford in Oxfordshire. - Annual. April, May.

3. T. alpestre Linn.

E. B. 2. 81.

Stem-leaves arrow-shaped. Stems simple. Style prominent beyond the margin of the obovate abrupt silicula. Smith.

In mountainous pastures in the north of England, among limestone rocks and lead mines. Smith. - Perennial. June, July.

14. HUTCHINSIA R. Brown.

Silicula elliptical; valves navicular, not winged; cells 2-seeded, seldom many-seeded. Calyx equal. Petals equal. Dec.

1. H. petræa R. Brown.

E. B. 2. 111.

Leaves pinnate, entire. Petals scarcely equal to the calyx. Stigma sessile. Seeds two in each cell. Smith.

Lepidium petræum Linn.

On limestone rocks and walls, especially in the south of Britain. — Annual March, April.

15. TEESDALIA R. Brown.

Silicula oval, emarginate; valves navicular; cells two-seeded. Stamens

with a scale at the base.

1. T. Iberis Dec.

Petals unequal.

Iberis nudicaulis Linn.
T. nudicaulis R. Br.

E. B. 5. 327.

In dry barren gravelly fields.

Annual. May.

16. IBERIS Linn. CANDY-TUFT.

Two exterior petals larger than the others. Silicula much compressed, truncate-emarginate. Seeds ovate, pendulous. Dec.

1. I. amara Linn.

E. B. 1. 52.

Stem herbaceous. Leaves lanceolate, acute, partly notched. Flowers in oblong clusters. Smith.

In chalky fields, but rare. — Annual. July.

Tribe iv. Cakilinea Dec.

Siliqua or silicula separating transversely into joints, with 1 or 2 cells, and 1 or 2 seeds. Seeds not bordered. Cotyledons flat, accumbent, parallel with the septum when there is one.

17. CAKILE Tournefort.

Silicula with two joints, compressed; the upper joint ensiform or ovate. Seeds solitary in each joint; that of the upper erect, of the lower pendulous. Dec.

1. C. maritima Willd. Sea Rocket.

E. B. 4. 231.

Joints of the silicula two-edged; the upper one arrow-shaped. Leaves fleshy, pinnatifid, obtuse. Smith.

Bunias Cakile Linn.

On the sandy sea coast frequent, — Annual. June-September.

Suborder NOTORHIZEE Dec. 011

Cotyledons flat, incumbent. Radicle lying upon the back of the cotyledons. Seeds ovate, not bordered.

Tribe v. Sisymbrieæ Dec.

Siliqua 2-celled, dehiscing lengthwise; valves concave or keeled. Seeds ovate or oblong, not bordered. Cotyledons flat, incumbent, at right angles with the septum.

18. HESPERIS Linn.

Siliqua nearly taper, or somewhat 4-cornered.
verging. Calyx with 2 sacs at the base.
3-cornered. Stamens without teeth. Dec.

Stigmas 2, erect, conSeeds oblong, somewha

E. B. 11. 731.

Leaves ovate

1. H. matronalis Linn. Dame's Violet.
Partial flower-stalks the length of the calyx.
lanceolate, toothed. Stem upright, slightly branched.
smooth, irregularly tumid, equilateral, nearly erect. Smith.
H. inodora Linn.

Pods

In hilly pastures, especially near rivulets, but rare.-Perennial. May, June.

19. SISYMBRIUM Linn.

Siliqua nearly taper, sessile on a torus. Stigmas 2, nearly distinct, or combined in a head. Calyx equal at base. Seeds ovate or oblong. Cotyledons flat, incumbent, sometimes oblique. Stamens without teeth. Dec.

1. S. officinale Scopoli. Hedge-mustard.

E. B. 11. 735. Pods pressed close to the main stalk, awl-shaped, downy. Leaves runcinate, hairy. Stem rough, with reflexed bristles. Smith.

In waste ground, by road sides, and on banks, common. - Annual. June, July. 2. S. Irio Linn. London Rocket. E. B. 23. 1631.

Leaves runcinate, toothed, smooth as well as the stem.

Smith.

Pods erect.

In waste ground, or on banks and heaps of rubbish, chiefly about London. Annual. July, August.

3. S. Sophia Linn.

Flixweed.

E. B. 14. 963.

Leaves doubly pinnatifid, a little hairy. Petals smaller than the calyx. Smith.

About waste ground, frequent. Annual. July-September.

20. ALLIARIA Adanson.

Siliqua nearly taper, somewhat 4-cornered, in consequence of its projecting ribs. Calyx lax. Seeds rather cylindrical. Cotyledons linearoblong, flat. Dec.

1. A. officinalis Dec. Jack by the Hedge, or Sauce Alone.

E. B. 12. 796.

Leaves cordate. Pods prismatical, much longer than the pedicels.

Dec.

May.

21. ERYSIMUM Linn.

Siliqua 4-cornered. Calyx closed. Cotyledons flat, oblong. Dec.

1. E. cheiranthoides Linn.

E. B. 14. 942.

Leaves lanceolate, obscurely toothed, roughish with close forked bristles. Pods erect, on horizontal stalks. Stigma almost sessile.

Smith.

Cheiranthus erysimoides Huds.

In turnip-fields, gardens, osier-holts, and hedges, not uncommon.

July.

2. E. orientale R. Brown.

Annual.

E. B. 26. 1804.

Leaves elliptic-heart-shaped, obtuse, clasping the stem; radical ones obovate; all smooth, glaucous, undivided, entire. Smith.

Brassica orientalis Linn.

Erysimum perfoliatum Dec.

In fields and on cliffs near the sea.

Annual. June.

Tribe vi. Camelineæ Dec.

Silicula with concave valves; septum elliptical in its chief diameter. Seeds ovate. Cotyledons flat, incumbent, at right angles with the septum.

22. CAMELINA Crantz.

Silicula obovate or roundish; valves ventricose, dehiscing along with part of the style; cells many-seeded. Style filiform. Seeds oblong, not

bordered. Dec.

E. B. 18. 1254. Silicula obovate, bordered, twice as long as the style. Leaves lanceolate-arrow-shaped. Smith.

Myagrum sativum Linn.

Alyssum sativum Smith.

In cultivated fields, chiefly among flax, with whose seeds it is often introduced from abroad, but does not long propagate itself with us spontaneously. Smith.

-Annual. June.

Tribe vii.

Lepidineæ Dec.

Seeds solitary

Silicula with a very narrow septum; valves keeled, or very concave. or very few, ovate, not bordered. Cotyledons flat, incumbent, parallel with the

septum.

23. CORONOPUS Gartn.

Silicula double; valves ventricose or slightly carinate, scarcely dehiscing, one-seeded. Seeds roundish, three-cornered. Cotyledons incumbent,

Silicula undivided, crested with little sharp points. Style prominent,

Leaves pinnatifid, subdivided. Smith.

Common in waste ground, and by waysides. — Annual. June-September.