. 56 CLASS XIV. ORDER IL | 
CLASS XIV. TETRADYNAMIA. f 
ORDER I. SILICULOSA. 
Thlas'^pi. Calyx spreading-, equal at the base; filaments distinct, withoui 
teeth; silicle compressed, emarginate, obcordate, many-seeded; valves resem- 
ble two boats with the keels outward, (shepherd's purse.) 
Lepid^'ium. Calyx spreading ; corolla regular ; silicle emarginate, cordate or 
oval ; cells 1-seeded ; valves carinate, dehiscent ; partition contrary ; cotyle- i 
dons incumbent, (peppers-grass.) 
Cochlea'ria. Silicle thick, rugose, many-seeded, 2-valved; valves gibbous, 
obtuse ; partition nearly parallel to the valves, (horse-radish, water-radish.) 
Caki'le. [Bunias.] Panicle compressed, of 2 single-seeded joints ; the upper 
joint with an erect single seed, inferior with a pendulous seed, (sea-rocket.) 
Dra'ba. Silicle entire, oval or oblong ; valves flat or convex ; ceils many- 
seeded ; seeds not margined ; filaments without teeth ; style 0; cotyledons accum- 
bent, (whitloe-grass.) 
Alys"sum. Calyx equal at the base ; petals entire ; stamens mostly toothed ; 
silicle orbicular, or elliptical ; valves flat, or convex in the centre; seeds 2 to 4 
in each cell, compressed, sometimes merabranously winged ; cotyledons accum- 
bent. (gold-of-pleasure.) 
Cameli'na. Silicle subovate, many-seeded; valves thick; cotyledons incum- , 
bent. 
Subula'ria. Silicle entire, ovate, concave, (convex without;) stigma sub ses* 
sile ; seed linear, 2-plaited; cotyledons incumbent. 
Cram^'be. Silicle globose, stalked, coriaceous, 1-celled, without valves, decid- 
uous ; seed solitary, (sea-kale.) Ex. 
Luna'ria, Silicle entire, oval, flat compressed, pedicelled ; valves equalling 
the partition, parallel, flat ; calyx consists of coloured, sack-like leafets. (hon- 
esty, or satin-flower.) Ex, 
Isa'tis. Silicle compressed, oblong ligulate, without valves, 1-seeded; parti- 
tion like lattice-work, (woad.) Ex. 
Ibe'ris. Corolla irregular, the two outer petals longest ; silicle many-seeded 
emarginate. (candy-tuft.) Ex. 
Turri'tis. Calyx converging, erect ; silique very long, striate, 2-euged ; 
valves keeled or nerved ; seeds arranged in a double series ; cotyledons accum- 
bent, (tower mustard.) 
ORDER II. SILiaUOSA. 
Denta'ria. Silique lanceolate ; valves flat, nerveless, often opening elastical- 
\y ; receptacles not winged ; funicle dilated ; seeds in a single series,, ovate, not 
margined ; cotyledons accumbent. (tooth-root.) 
Cardam'^ine. Calyx leaves spreading but little-; stigma entire ; a single gland 
between each of the short stamens and the calyx; silique with truncate mar- 
gins, linear, long, bursting elastically with revolute valves, narrower, but equal- 
ling the length of the partitions; seed with a slender funicle, not margined. 
(American water-cress.) 
Ar'^abis. Glands 4, one within each leafet of the erect calyx, of the size of 
the reflexed scale ; silique compressed, torulose, sub-divaricate; valves flat, 1 
nerved ; seeds arranged in a single series ; cotyledons accumbent. (wall-cress.) 
Cheiran'^thus. Calyx closed, two of the leafets gibbous at the base ; petals 
dilated; silique, when young, with a glandular tooth each side; stigma 2-lobed; 
seed flat, sometimes margined, (stock-july flower, wall-flower.) 
Sina'pis. Calyx spreading ; corolla with straight claws; glands between the 
short stamens and the pistil, and between the long stamens and the calyx ; par- 
tition extending beyond the valves of the silique, ensiform ; seeds in a single 
series, (mustard.) 
Rapha^nus. Calyx closed, setose ; silique torose, terete, not opening by valves, 
1 or 2-celled ; glands between the short stamens and pistil, and between the long 
stamens and the calyx, (radish.) 
Bras'^sica. Calyx erect, converging ; partition extending beyond the valves 
of the silique; seed globose; glands between the short stamens and pistil, and 
between the long stamens and calyx, (cabbage, turnip.) Ex. 
Barbare'a. Silique 4-edged ; cotyledons accumbent ; seeds in a single row ; 
calyx equal at the base, erect; shorter filaments with intermediate glands j 
cotyledons accumbent, (water-radish.) 
