VI. CRUCIFERvE. 
21 
merits elliptical entire, petioles ending in tendrils, pedicels very 
short scarcely so long as the minute bracteas, root fibrous, style 
persistent. Fuinaria L. : E. B. t. 103. 
Bushy and shady places, in gravelly or stony soil. In Scotland, 
most abundant on walls and roofs of houses, especially in the High- 
lands. y.. 6,7. — Stems long, very slender. Whole plant extremely 
delicate. Flowers small, pale yellow almost white; seeds with a con- 
cave crest, in germination with two oblong lanceolate cotyledons. 
Calyx of 4 sepals. Petals 4. Stamens usually 6 and tetra- 
dynamous ; 2 solitary, alternate with the petals ; 4 opposite to 
them in 2 pairs ; rarely only 4 and equal. Ovary and Style 
1 ; hypogynous glands at the base of the solitary stamens. Peri- 
carp usually a pouch or pod , 2- rarely 1 -celled, 2-valved the 
valves opposite the shorter stamens ; sometimes valveless. Seeds 
on marginal placentas (between the longer stamens) without 
albumen. Radicle curved. Cotyledons plane, parallel to the 
dissepiment and with their edges applied to the radicle ( accum - 
bent o—) 1 ; or plane, with their back turned to the radicle (in- 
cumbent o||) ; or folded and embracing the radicle ( conduplicatc 
o>>). — Herbs. Leaves alternate. Flowers generally in 
corymbs which at length become racemes. — A most important 
Natural Order , many of the plants which it contains being culti- 
vated as esculents; as th cCabbage, Turnip , Mustard , and Cresses 
of various kinds, Horse-radish, &c. They contain an essential 
oil which renders them stimulating, while their seeds yield a 
fine and mild oleaginous fluid, as Rape ; and they are antiscor- 
butic. The mustard-seed is used lor sinapisms. Most kinds 
contain sulphur and nitrogen, and give out in decaying a smell 
resembling that of animal matter. 
I. SiLicuLOsai. Fruit short, scarcely more than a half longer than broad. 
17. Cakile. Fruit of 2 joints placed end to end, upper angular deci- 
duous 1 -seeded, lower sometimes sterile. Cot. o=. 
32. Craiibe. Fruit of 2 joints placed end to end, upper globose deci- 
duous 1-seeded, lower stalk-like. Cot. o». 
26. Senebiera. Fruit with 2 cells placed side by side, each 1-seeded. 
Cot. oil. 
27. Isatis. Fruit 1-celled, 1-seeded, with keeled valves. Cot. o||. 
1 The radicle points to or is next the placenta, and, unless accidentally twisted, 
must be parallel to the dissepiment. When, therefore, the cotyledons are flat, with 
their edges turned to the placenta, they are truly accumbent, although apparently 
incumbent. But when they are linear, or the seed is nearly terete, their position 
and that of the seed itself may be altered by a twist of the seed-stalk, in which 
case it is preferable to be guided solely by the apparent relative position of the 
radicle and cotyledons in the detached seed. 
Ord. VI. CRUCIFERfE Juss. 
A. Fruit without valves; or 1-celled, 1-seeded. 
