Pruate LXII. 
(A, B) ORIGANUM voteans, Linn., 8. prismaticum, Gaud. ; 
(C, D) CALAMINTHA Nepera, Link ct Hoffm. 
Natural Order Lastata. 
(A, B.) Gey. Coar.—Flowers gathered into cylindrical or oblong - 
spikelets. Bracts imbricate, coloured, covering the calyces. Calyx 
tubular (ovato-tubulosus), 10-13-nerved, striate, the 5 teeth equal or 
the upper ones scarcely longer; throat hairy within. Corolla-tube 
equalling or scarcely exceeding the calyx, limb subbilabiate, upper lip 
suberect, emarginate, lower lip spreading, trifid, lobes nearly equal. 
Stamens exsert, separated, the lower pair longer. <Achenes dry, nearly 
smooth. Leaves quite entire or slightly lobed. Benth. Lab. p. 334. 
(A, B.) Spec. Coar.— Flowers in elongated spikelets, forming a loose, 
terminal corymb; the large hermaphrodite and the small pistillate 
flowers on separate plants; the pistillate flowers contain abortive and 
useless stamens. Calyx-teeth nearly equal, semiovate. Corolla-tube 
longer than calyx in hermaphrodite, subequal in pistillate form, covered 
with glands. Stamens abortive in pistillate form (Fig. A 2); the two 
longer ones in the hermaphrodite forms exserted and divergent, the 
shorter pair included. Stigmas short, subequal. -Achene ovate-oblong, 
compressed, pointed at’base. Leaves entire, ovate, whitish or purple 
beneath, pubescent. 
Origanum vulgare, Linn., B. prismaticum, Gaud. Fl. Helv. iv. p. 78; 
Gren. et Godr. Fl. de Fr. ii. 656. 
(C, D.) Guy. Cuar.— Flowers in axillary cymes. Calyx tubercular 
during flowering (ventricose in C. alpina, Lam., and C. Acinos, Clairv.), 
2-lipped, 13-nerved, throat hairy. Corolla 2-lipped, the upper lip some- 
what concave, the lower of 3 broad lobes. Stamens (when perfect) con- 
vergent under the upper lip, the lower (outer) pair longest; anther- 
cells separated, divergent at base. 
(C, D.) Srzc. Cuar.—Flowers in dichotomous cymes; those of the 
large-flowered hermaphrodite form (C) and those of the small-flowered 
pistillate form (D) on separate plants; the cymes of flowers being 
much more crowded in the latter than in the former case. Calyx smaller 
in the pistillate form. Corolla smaller and less brightly coloured in the 
pistillate form. -Achene subglobose, punctate, in the pistillate, ovoid- 
oblong in the hermaphrodite form. Leaves pubescent. 
Calamintha Nepeta, Link et Hoffm. Fl. Port. p. 141; Gren. et Godr. 
‘Fl. de Fr. p. 664; Woods, Tour. Fl. p. 289. 
Haxsrrats.—All gathered by me at Mentone in November, 1867. 
