540 ORDBR 89. LABIATE. 



(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-celled, cells often separated. Ooary 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. T5, 86, 117, 825, 2T3, 351. 



. Genera 1-25, xpecies 2350, chiefly natives of temperate regions, being most abundant between 

 latitudes 40 an J 5(1 of the northern hemisphere. 



Propertif*. This well known family is universally pervaded by an aromatic, volatile oil, nmt 

 ix bitter principle. ; the former rendering them eminently tonic, cordial, and stomachic ; the lat- 

 ter, where it prevails, febrifugal. The Pennyroyal, IM vender, Sge, ffoar/ioimd. Thyme, 

 Spearmint, Peppermint, [Jorxemint, Rosemary, &c., &c., plants whose qualities are too well 

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

 oies is poisonous or even suspicious. 



TRIBES AND GENERA. 

 Stamens 2, perfect, ascending beneath the galea ; anthers 1-celled. (Tribe IV.) 



cxsertcd, distant ; anthers 2-cellcd (d). 



{ 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 5-lobed (*c). 



2 Stamens, the upper pair longer than the lower (outer) and calyx 13 to 15-veined. (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-lipped, 3 or 4-lobed, open in fruit (k). 

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

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

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



I. OCIMOIDE-*:. Corolla upper lip 4-lobcd, lower entire, flattish OCIML-M. 1 



Corolla upper lip 4-lobed, lower saccate, deflexed II YPTIS. 



Corolla upper lip 2-Iohed, lower 3-lobed LAVANDULA. 



II. AJUGOIDE^E. b Stamens exserted through a fissure in the tube TEUCIIIUM. 



b Stamens very long, involute, arching the corolla.. .. .TKICUOSTEMMA. 

 *C Corolla limb equally 5-lobed. Stamens short ISANTUUS. 



III. SATUEEJEuE. (Stamens diverging or ascending, 2-celled. Cor. lobes flattish, spreading. 



*C Corolla limb 4-lobed, upper lobe broadest MENTHA. 



d Corolla nearly regular, 4-lobed. Calyx naked in the throat LVCOPUS. 



d Corolla bilabiate, cyanic, throat naked. Stamens straight CUNILA. 



cyanic, throat naked. Stamens ascending HKDEOMA. 1(1 



yellow, throat with a hairy ring inside COLLINSONIA. 11 



e Calyx 15-veincd. Stamens exserted, divergent HYSSOPITS. 13 



O Calyx 10-veined, the veins obscured by hairs. Cor. yellow, fringed COLLINSONIA. 11 



e Calyx 10 to 13-veincd, throat naked. Stamens straight, divergent. . PYCNASTHK.MITM. 13 



Stamens ascending, anth. spurless.-SATfREjA. 14 

 Stamensasccnding, anth. spurred. DICER AN DRA. 15 



throat hairy Bracts roundish, large OKIGANUM. 10 



Bracts narrow, minute THYMUS. IT 



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



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



IV. MONARDE^E. Connectile long, transverse, distancing the anther cells SALTIA. 20 



Connectile continuous with fll. toothed at the juncture.. . .KOSMAKINUS. 21 



Connectile inconspicuous. Calyx subequally toothed MOXAHDA. 22 



Calyx bilabiate, aristate BLEPHYI.LI A. 2.1 



V. NEPETE.E. Stamens distant, exserted. Flowers in terminal spikes LCPIIANTIICS. 24 



Stamens all ascending. Anther cells divergent, much . NEPETA. 25 



Anther cells divergent, little.. .DRAroCR^iiAi CM. 26 

 Anther cells parallel. FIs. large.. .CF.DKONFM.A. 2T 



VI. STACIIYDE JE. (Stamens parallel, ascending. Cor. upper lip galeate. C.il. 5 to 10- veined.) 

 h Calyx lips toothed, upper 3 teeth minute, lower 2 large FBtrNr-LLA. "i> 



