( 351 .) 
IBE'RIS* 
Linncan Class and Order . Tetradyna'mia f, Siliculo'sa J. 
Natural Order . Cruci'ferae§, Juss. Gen. PI. p. 237. — Sin. 
Gram, of Bot. p. 138. ; Engl. FI. v. iii. p. 153. — Rich, by Macgilliv. 
p. 498. — Crucifers ; subord. Pleurorhize.f:|| ; tribe, Thlas- 
pide^e ; Lindl. Syn. pp. 20, 22, & 27. ; Introd to Nat. Syst. of Bot. 
pp. 14 to 18. — Loud. Hort. Brit. pp. 498 & 499. ; Mag. Nat. Hist, 
v. i. pp. 143 & 240. — Don’s Gen. Syst. of Gard. and Bot. v. i. 
pp. 146 & 148. — Mack. FI. Hibern. pt. i. pp. 16. — Hook. Brit. FI. 
(4th ed.) p.397. — Rosales; subord. Rhceados.-e ; sect. Rhaja- 
diNjE ; type, Brassicaceae ; subtype, Arabidje; Burn. Outl. of 
Bot. pp. 614,784, 847, 854, & 856. — Siuquosa:, Linn . 
Gen. Char. Calyx (see fig. 1.) inferior, equal at the base, of 4, 
egg-shaped, concave, equal, spreading, deciduous sepals. Corolla 
(see fig. 1.) of 4, inversely egg-shaped, undivided, spreading, un- 
equal petals, with short claws (see fig. 3.) ; the two outermost (see 
fig. 1.) largest, equal to each other. Filaments (fig. 2.) 6, tetra- 
dynamous, about the length of the calyx, awl-shaped, distinct, 
simple. Anthers roundish. Germen (fig. 4.) almost circular, 
notched at the summit, compressed. Style (see fig. 4.) very short. 
Stigma blunt. Pouch fsilicula) (fig. 5.) egg-shaped, transversely 
compressed, bordered, of 2 cells, cloven at the top into 2 acute 
lobes, between which stands the permanent, somewhat elongated, 
style ; valves 2, distinct, boat-shaped, each with a dilated pointed 
keel (see fig. 6, c ) ; partition (fig. 6, b.) elliptical, membranous, as 
wide as the valves. Seeds (fig. 6, a.) one in each cell, egg-shaped, 
pendulous. Cotyledons (see figs. 8 & 9.) egg-shaped, flat, accum- 
bent (o=). 
Distinguished from other genera, with accumbent cotyledons, in 
the same class and order, by the unequal petals ; and the much 
compressed, egg-shaped, notched pouch, of 2, 1-seeded cells. 
One species British. 
IBE'RIS AMA'RA. Bitter Candy-tuft. White Candy-tuft. 
Clown’s Mustard. 
Spec. Char. Herbaceous. Leaves spear-shaped, pointed, some- 
what toothed, smooth. Flowers corymbose, finally racemose. 
Engl. Bol. t. 52. — Linn. Sp. PI. p. 906. — Huds. FI. Angl. (2nd eel.) p.285. — 
VVilld. Sp. PI. v.iii. pt. i. p. 456. — Sm. FI: Brit. v. ii. p.692.; Engl. FI. v. iii. 
p. 181. — With. (7ih edit.) v. iii. p. 765.— (Jray's Nat. Arr. v. ii. p. 693. — Lindl. 
Syn. p. 28. — Hook. Brit. FI. p. 296. — Macr. Man. Biit. Bot. p. 18. — Lightf. FI. 
Scot. v. ii. p. 1136. — Sibth. FI. Oxon. p. 201. — Davies’ Welsh Bot. p. 63. — 
Fig. 1. Calyx and Corolla. — Fig. 2. Stamens. — Fig. 3. A separate Petal. — 
Fig, 4. Germen, Style, and Stigma. — Fig. 5. Pouch.— Fig. 6. The same, with one 
of the valves removed ; a. one of the seeds ; b. the partition ; c. one of the valves. — 
Fig. 7. The Partition, with the valves and seeds removed. — Fig. 8. A Seed with the 
testa or skin removed, showing the two cotyledons, with the radical meeting their 
edges, (cotyledons incumbent). Fig. 9. Transverse section of the same . — All 
more or less magnified. 
* F’rom Iberia, the ancient name of Spain, where some of the species grow, 
t See f. 38, n. +. { See f. 107, n. 1. i See f. 38, a. j| See f. ill, n. ||. 
