( 430 .) 
TURRI'TIS*. 
Linnean Class and Order. Tetradyna'mia f, Siliquo'sa*. 
Natural Order. Cruci'fera:§, Juss. Gen. PI. p.237. — Sm. 
Gram, of Bot. p. 138. ; Engl. FI. v. iii. p. 153. — Rich, by Macgilliv. 
p. 498. — Cruci'fer^e; subord. Pleurorhi'zea; ; tribe, Arabi'- 
deie ; Lindl. Syn. pp. 20 & 22. ; Introd. to Nat. Syst. of Bot. pp. 
14 to 18. — Loud. Hort. Brit, pp.498 & 499.; Mag. Nat. Hist. v. i. 
pp. 143 & 239. — Don’s Gen. Syst. of Gard. and Bot. v.i. pp. 146 
and 147. — Mack. FI. Hibern. pp. 16. — Rosales; subord. Rhcea- 
dos.-e ; sect. Rh/eadinas ; type, Brassicacea: ; subty. Arabid/E ; 
Burn. Outl. of Bot. pp. 614, 784, 847, 854, & 856. — Siliquos^e, 
Linn. 
Gen. Char. Calyx (fig. 1.) inferior, of 4 oblong, upright, con- 
verging, deciduous sepals ; the two opposite ones slightly protu- 
berent at the base. Corolla (see fig. 2.) of 4 inversely egg-shaped, 
entire, upright petals, not twice the length of the calyx. Filaments 
(see figs. 3 & 5.) 6, thread-shaped, simple, upright, unconnected. 
Anthers (see fig. 5.) oblong, incumbent. Germen (see fig. 4.) 
strap-shaped, as long as the petals. Style very short. Stigma blunt. 
Pod (silique) (see fig. 6.) strap-shaped, compressed, very long and 
slender ; valves straight, flat, each with a prominent nerve or keel, 
and quite as long as the strap- shaped membranous partition. Seeds 
very numerous, arranged in two rows in each cell (see fig. 6.), 
crowded, egg-shaped, compressed, slightly bordered. Cotyledons 
flat, accumbent (o=). 
The strap-shaped pod, with flat, nerved or keeled, valves ; and 
the seeds in a double row, with flat, accumbent cotyledons ; will 
distinguish this from other genera in the same class and order. — 
It differs from Arabis (see t. 159.) in the seeds being arranged in 
a double row. 
One species British. 
TURRI'TIS GLABRA. Smooth Tower-mustard. Long-podded 
Tower-mustard. Towers Treacle. 
Spec. Char. Plant upright. Root-leaves toothed, hairy ; 
stem-leaves entire, amplexicaul, smooth, glaucous. 
Engl. Bot. t. 777. — Curt. FI. Lond. t. 253. — FI. Dan. t. 809 — Linn. Sp. PI. p. 
930. — Huds. FI. Angl. (2nd ed. ) p. 291. — Willd. Sp. PI. v. iii. pt. i. p. 542. — Sm. 
FI. Brit. v. ii. p. 715. ; Engl. FI. v. iii. p. 215. — With. (7th ed.) v. iii. p. 781. 
Gray’s Nat. Arr. v. ii. p. 677. — Hook. Brit. FI. p. 303. — Lindl. Syn. p. 24. — Don’s 
Gen. Syst. of Gard. and Bot. v. i. p. 160. — Macr. Man. Brit. Bot. p. 15. — Sibth. 
FI. Oxon. p. 204. — Purt. Midi. FI. v. i. p. 313. ; v. iii. p. 369. — Hook. FI. Scot, 
p. 200. — Winch’s FI. of Nortliumberl. and Durh. p. 45. — Walker’s FI. of Oxf. p. 
194. — Perry’s PI. Varvic. Sel. p. 57. — Bab. FI. Bath. p. 4. ; Suppl. p. 70. — Irv. 
Lond. FI. p. 164. — Baines’ FI. of Yorksli. p. 13. — Leight. FI. of Shropsh. p. 317. 
Turritis, Ray’s Syn. p. 293. — Johnson’s Gerarde, p. 272. 
Fig. 1. Calyx. — Fig. 2. Ditto, and Corolla. — Fig. 3. Stamens. — Fig. 4. Pistil. — 
Fig. 5. A single Stamen. — Fig. 6. A ripe Pod. — Fig. 7. Transverse section of ditto. — 
Fig. 8. A Seed.— Fig. 9. Accumbent Cotyledons. — All, except figs. 6 and 8, 
a little magnified. 
’ From turris, a tower ; from the pyramidal growth of the plant, 
t See fol. 3S, n. +. J See fol. 62, n. f. ? See fol. 38, a. 
