XClll. LABIATE. 413 



2. LIPPIA. 



In honor of Augustus Lippi, a French physician. 



Flowers in dense, pedunculate heads ; calyx 2-parted, compressed 

 ferect, membranaceous, shorter than the tube of the corolla ; cor- 

 funnel-shaped, limb subbilabiate, upper lip entire or emarginatej 

 low«r 3-lobed ; sta. 4, didynamous, included ; drupe dry, thin, en- 

 closed in the calyx, 2-seeded. — Shrtobs or prostrate herbs, with opposite 

 leaves. Heads on axillary peduncles. 



L. NODiFi.oRA, Michx. (Zapania nodiflora. Ph. and authors.') Fog-fruit. 



Glabrous, procumbent; sL 4-angled, geniculate, simple; lis. lanceolate or 

 linear-lanceolate, acute, serrate, cuneate at base, petiolate, shorter than the pe- 

 duncles. — 2|. On river banks, Penn. to la.! 111. and La. Stems If or more long. 

 Leaves with conspicuous veins, 1 — 2' long, | — f as wide, petioles 3 — 6". Pe- 

 duncles 2 — 3'. Heads ovoid or roundish. Flowers small, purplish-white, 

 July, Aug. 



/?. lanceolala. (Lippia lanceolata. Mx.) Lis. linear-lanceolate. 



3, PHRYMA. 

 Calyx cylindric, bilabiate, upper lip longer, 3-cleft, lower lip 2- 

 toothed ; corolla bilabiate, upper lip emarginate, much smaller than 

 the 3-lobed lower one ; seed solitary. — Herbs with opposite Ivs. Fls. 

 opposite, spicate, dcjiexed in fruit. 



P. LEPTosTACHYA. (Priva. Lindl.) Slender-spiked Ph"ijma or Lopseed. 



Lvs. stalked, ovate, serrate ; spikes long and slender ; cal. in fruit reflexed. 

 — % Found in rocky woods. Can. and U. S. Stem 2 — 3f high. Leaves large 

 (3- 6' long), thin and coarsely toothed, on short stalks. Flowers small, oppo- 

 site, light-purple, in very long and slender spikes, of which one is terminal, 

 the rest opposite and axillary, each often with a pair of bracts below. After 

 flowering the calyx closes upon the fruit and becomes reflexed backwards close 

 to the stem. Hence the common name lopsced. The specific name refers to 

 the slender spikes. Seeds solitary, rather large, invested with a thin membra- 

 nous capsule, and enclosed in tlie matured calyx. July. 



Order XCIII. LABIATE.— Labiate. Plants. 



Herbs or undershrubs with 4-comered stems and opposite branches. 

 Lvs. opposite, without stipules, replete with receptacles ot'aromatic oil. 

 Fis. in axillarj', subsessile vcrticillasters, sometimes as if in whorls, spikes or heads 

 Color almost always of tlie cyanic series, blue, purple, red, white, &c. 



Cal. tubular, regularly 5-toothed or cleft, or bilabi.-ite, persislenf . [3 deft one 



Cor. bilabiate (rarely regular, 5-toGthed), the upper lip bitid or entire, overlapping in estivation the lower 

 Sta. i, didynamous, or sometiiries only 2, the upper pair being abortive or wanting, situated on the corolla 

 tube. ^«Z/j. mostly 2-celied. ■■ci^viuna 



Ova. free, deeply 4-Iobed, the single style arising Horn the base of the lobes. 

 Fr. 1 — 4 hard nuts or achenia. 

 Sds. erect, with httle or no uibumen. Embryo erect. Cotyledons flat. 



Genera 125, species 2350, chiefly natives of temperate regions, being most abimdant between latitudes 

 40° and 50" 01 the northern hemisphere. 



Properties.— Jh\% well-known family is universally pervaded by an aromatic, volatile oil, and a bitter 

 pnnciple ; the former rendering them emmenily tonic, cordial and stomachic; the latter where it pro- 

 vails, Jebrifugal. The vennyroyal, lavender, sasce. lioa.rhoun(t,'myme, syfarmint, peppermint hm-se- 

 mint, rosemary. ^c.,4-c., plants whose (jualaies are too well known to renuire particular mention here 

 are ail members ot this useful family. Not one species is poisonous or even sitspicious 



! 



