LABIAT. 
12 PvcnuwósTAcHYs. 
spinose. —Whorls of flowers spicate. 
§ 3. Lower segment of corolla somewhat stipitate, transversely 
subcallous at the base, and at length saccate, but bent down 
abrupily at the time of florescence. 
13 Pr'tropon. Teeth of calyx subulate, peltate at apex.— 
Habit of Hyptis capitata. 
14 MamsvrrA'NTHUs. Achenia concave, boat-shaped, with 
membranous, involute, fringed margins.—Habit of Hyptis 
capitata. 
15 Hy’rtis. Calyxes not peltate, fructiferous ones not bila- 
biate. Achenia not cymbiform. 
16 Erre.  Floriferous calyx equal, fructiferous one in- 
creasing and bilabiate: upper lip tridentate : lower lip bidentate. 
§ 4. Corolla bilabiate : upper lip 2-lobed : lower lip 3-lobed. 
Stamens inclosed in the tube. 
17 Lava'wpUra. Character the same as that of the section. 
Trise Il. 
Mentuorpex. Corolla subcampanulate, or funnel-shaped ; 
tube shorter than the calyx, or hardly longer; limb 4-5-cleft, 
with the lobes nearly equal, rarely sub-bilabiate. Stamens dis- 
tant, straight, or diverging, not approximating by pairs, nearly 
equal; the lower ones are a little longer; the superior ones 
sometimes abortive. 
8 1. Anthers terminal, also the younger ones are confluently 
l-celled. Stamens somewhat declinate. 
18 PocosrEMow. The 3 superior segments of corolla ap- 
proximate : lower one declinate. 
19 DxsorHv'LLA. Corolla almost regular. 
§ 2. Anthers versatile; cells divaricate, at length confluent. 
Stamens sometimes somemhat ascending. 
20 EzrsnuórTzia. Corolla tubular; limb short, bilabiate. 
Lobes of gynóphore shorter than the ovarium. 
21 TrrRApE NIA. Corolla regular. Lobes of gynophore 
longer than the ovarium. 
§ 3. Anthers 2-celled ; cells parallel. 
in the mhole tribe. 
Corolla normal, as 
22 COLEBROÒKIA, 
the achenia. 
23 PrníLLA. Upper tooth of fructiferous calyx small. Style 
deeply bifid. 
24 IsA'NTHUS. 
Fructiferous calyx pappose, adhering to 
Achenia rather large, wrinkled reticulately. 
25 Prr’stea. Calyx 4-toothed. 
26 Mz' wrua. Calyx 5-toothed, not pappose. 
smooth. Fertile stamens 4. e 
Achenia 
Teeth of fructiferous calyx subulately 
667 
27 Lyco'rus. Superior stamens abortive. 
§ 4. Cells of anthers disjoined, mith a filiform connective. 
28 Meria’npra. Character the same as that of the section. 
Trise III. 
Mona’rvex. Corolla bilabiate. Superior stamens abortive, 
or if fertile bearing linear, connate anthers : lower stamens 
fertile, ascending ; anthers linear, sometimes confluently 1-celled, 
connate, sometimes dimidiate, free, or connate behind, with a 
linear connective, which is articulated to the filament, and bear- 
ing the fertile cell at top, truncate behind, but generally drawn 
out, filiform, elevated, bearing the other cell, which is sometimes 
difformed and empty, and sometimes fertile. 
§ 1. Connective filiform, articulated to the filament. 
29 Sa’tvra. Connective drawn out under the insertion, naked 
or bearing a cell behind. 
80  AunIBE/nTIA. 
insertion. 
Connective not drawn out under the 
§ 2. Connective small. Fertile stamens 2. 
31 Rosmarinus. Calyx bilabiate: upper lip entire : lower 
lip bifid. Filaments toothed at the base. 
32 Mona’rpa. Calyx 5-toothed. Lower lip of corolla 
linear, shortly trifid at apex. : 
33 Brrrurria. Calyx 5-toothed, sub-bilabiate ; throat naked 
inside. Lower lip of corolla broad, trifid. 
34 ZizrPHoRA. Throat of calyx villous inside. Corolla of 
Blephilia. 
§ 3. Connective small. Fertile stamens 4. 
35 Hormi'num. Character the same as that of the section. 
Trise IV. 
SaturernEx, Calyx 5-toothed, equal, or bilabiate, 3. Tube 
of corolla exannulate, shorter than the calyx, and imbricating 
bracteas, or hardly longer; limb sub-bilabiate: upper lip flat, 
entire, or emarginately bifid ; lobes of lower lip flat. Stamens 
straight, diverging, or hardly ascending, equal, or the superior 
ones are shortest, or abortive. Anthers not dimidiate. 
$ 1. Fertile stamens 4. Calyx 10-13-nerved. 
36 Bystropocon. Calyx equal; throat villous inside.— 
Inflorescence cymose, or spicate. 
37 PycuwA' NTHEMUM. Calyx equal, or sub-bilabiate, naked 
inside. Upper lip of corolla oblong, entire, or emarginate.— 
Whorls many-flowered, bracteate. 
4Q2 
