540 Order 89.— T.ABIATA 



(rarely regular), upper lip 2-cleft or entire, arched or almost wanting, overlapping 

 in bud the lower 3-cleft, usually larger lip. Stamens 4, didynamous, or only 2. 

 Anthers 2-C6lled, cells often separated. Ovary free, deeply 4-lobed, the single style 

 arising from the base of the lobes. Fruit composed of 4, or by abortion fewer, sep- 

 arable, 1-seeded nuts or achenia. 



Illustrations in Figs. 75, 86, 117, 825, 278, 851. 



Gefiera 125, species 2350, chiefly natives of temperate regions, being most abundant between 

 latitudes 40"* and 50° of th& nortliern hemisphere. 



Properties.— This well known family is universally pervaded by an aromatic, volatile oil, and 

 a bitter principle ; the former rendering them eminently tonic, cordial, and Btomaehic; the latr 

 ter, where it prevails, febrifugal. The Pennyroyal^ Lavender^ Sage, JSoarhaimd^ Thyme, 

 Spearmint^ Peppermint, Ilorsemint, Rosemary, Sc, <&g., plants whoso qualities are too well 

 known to require particular mention here, are all members of this useful family. Not one spe- 

 cies is poisonous or even suspicious. 



TRIBES AND GENERA, 

 § Stamens 2, perfect, — ascending beneath the galea ; anthers 1-celled. (Tribo IT.) 



— exserted, distant ; anthers 2-celled (d). 

 S Stamens 4, perfect,— all declined towards the lower lip. (Tribe I.) 

 -^erect, or ascending towards the upper lip (2). 

 2 Stamens of equal length, corolla almost regular, 4 to 6-lobed (*c). 



2 Stamens, the upper pair longer than tho lower (outer) and calyx IS to l5-voined. (Trib« V.) 

 2 Stamens, the lower pair longer than the upper (interior) pair (3). 

 3 Stamens divergent, apart, mostly straight and exserted (e). 

 3 Stamens parallel, ascending and long-exserted from the upper side (b). 

 3 Stamens parallel, ascending in pairs beneath the upper lip (4). 

 4 Calyx 13-veined, 5-toothed, and somewhat 2-lipped (f). 

 4 Calyx 5 to 10-veined, or irregularly netted (5). 



5 Calyx strongly 2-lipped, upper lip truncate, closed in fruit (h). 

 5 Calyx not 2-lippe(l, S or 4-lobed, open In ft-uit (k). 

 5 Calyx subequally 5-toothed, teeth not spinescent (m). 

 5 Calyx subequally 5-toothed, teeth spinescent (n). 

 5 Calyx unequally S to 10-toothed (o). 



I. OCIMOIDE-<E.— Corolla upper lip 4-lobed, lower entire, fiattish Ocimdu, 1 



— Corolla upper lip 4-lobed, lower saccate, deflexed Hyptis. 2 



— Corolla upper lip 2-lobed, lower S-lobed Lavandula. S 



II. AJUGOIDE^. — b Stamens exserted through a fissure in the tube Tedcrium. 4 



b Stamens very long, involute, arching the corolla., .. .Trichobtkmma. 6 

 *C Corolla limb equally 5-lobed. Stamensshort Isanthus. 6 



III. SATUEEJE.<E.—(S tarn ens diverging or ascending, 2-celled. Cor. lobes flattish, spreading.) 



*G Corolla limb 4-lobed, upper lobe broadest Mentha. 7 



d Corolla nearly regular, 4-lobed, Calyx naked in the throat LtcopuA, 8 



d Corolla bilabiate, — cyanic, throat naked- Stamens straight Cunila. 9 



— cyanic, throat naked. Stamens ascending Hedboma. 10 



—yellow, throat with a Raiiy ring inside Collinsonia. 11 



e Calyx 15-velned. Stamens exserted, divergent Htssopds. 13 



e Calyx 10-veined, the veins obscured by hairs. Cor. yellow, fringed Collinsonia. U 



e Calyx 10 to 18-veined,— throat naked. — Stamens straight, divergent. . Pycnantuemum, 18 



—Stamens ascending, anth. 8purle.ss..SATDBiMA. 14 

 — Stamens ascending, anth. spurred.DiCERANDRA. 15 



—throat hairy— Bracts roundish, large Origanum. 16 



—Bracts narrow, minute Thymus. 17 



f Tube of the corolla straight. Leaves small, subcrenate or entire Calamintiia. 18 



f Tube of the corolla curved upwards. Leaves large, coarse-crenate MELiseA. 19 



IV. MONARDE.^.— Conncctile long, transverse, distancing the anther cells Salvia. 20 



— Conncctile continuous with fli. toothed at the juncture Eosmaiuncs. 21 



— Connectilo inconspicuous.— Calyx subequally toothed Monabda. 23 



—Calyx bilabiate, aristate Blepiitllia. 23 



"V. NEPETEjE. — Stamens distant, exserted. Flowers in terminal spikes Lopuanthub, 24 



-Stamens all ascending.— 'Anther cells divergent, much NErsTA., 25 



—Anther cells divergent, little. . .BRACOCEpnAi.cM. 26 



—Anther cells parallel. Fls. large... Cedronp,li.a. 27 



VL BTACUTDE^.--(Stamen8 parallel, oscending. Cor. upper lip galeate. Cal. 5 to 10-veined.) 



h Calyx lips toothed, upper 3 teeth minuto, lower 2 largo. Brunella. SB 



