Order IV. 
POLYANDRTA POLYGYNIA. 
491 
8088 Stem creeping, Leaves triangular cordate serrate crenate 
8089 Stem erect, Leaves cordate roundish crenate with round auricles 
8090 An aquatic floating plant, covered all over with viscid slime. Roots fibrous 
8091 The only species. A small plant with simple stems and a few 3-5-parted leaves 
8092 tfcffe, 8093 8094 
8095 
atid Miscellaneous Particulars. 
1240. Hydropeltis. From vlu^, water, and -jiXr'/i, a buckler ; that is to say, a water-plant, with a leaf like a 
round shield. A curious little floater, with the aspect of Hydrocharis. 
1241. Hydrastis. From v^m^, water, in reference to the humid places wherein it grows. The root of this 
plant is yellow, bitter, pungent, and tonical. 
1247. Th'ymbra. Cal. subcylindricai, 2-lipped, with a villous furrowed line on each side. Segm. of cor. flat. 
Style half bifid. 
1248. Hyssopus. Lower lip of cor. 3-parted, with the intermediate segm. subcrenate. Stamens straight, 
distant. 
1249. Nepeta. Cal. dry, striated. Cor. with a longish tube ; the middle segments of lower lip crenate. 
Orifice reflexed at edge. Stamens approximating. 
1250. Elsholtzia. Cal. tubular, 5-toothed. Upper lip of corolla 4-toothed ; lower longer, undivided, some- 
what crenulate. Stamens distant. 
1251. Lavandula. Cal. ovate, somewhat toothed, supported by a bractea. Corolla resupinate. Stamens 
within the tube, 
1252. Sideritis. Cal. 5- fid. Cor. ringent or subregular : the upper lip bifid, lower 3-parted. Stamens within 
the tube. The short stigma wrapping over the other. 
1253. Bystropogon. Cal. with 5 subulate teeth, closed at the orifice with hairs. Upper lip of cor. bifid ; 
lower trifid. Stamens distant. 
1254. Mentha. Cor. nearly equal, 4-fid, with the broadest segment emarginate. Stamens erect, distant. 
1255. Terilla. Cal. with the upper segment very short. Stamens distant. Styles 2, united. 
1256. Hyptis. Cal. 5-toothed, increasing in size. Corolla ringent : the upper lip bifid ; the lower 3-parted, 
with the intermediate segment shaped like a little bag. Stamens inserted in the swollen part of the tube, and 
declinate. 
1257. Horminum. Cal, 2-lipped, awned, smooth in the orifice ; when past flower, having its upper teeth 
crossing each other. Upper lip of corolla 2-1 obed; lower 3-lobed, with nearly equal segments. Leaves radical. 
Scape nearly naked. 
1258. Glechoma. Cal. 5-fid. Each pair of anthers forming by their union the figure of a cross. 
1259. Lamium. Upper lip of corolla entire, vaulted ; lower 2-lobed ; the orifice toothed at the edge on both 
sides. 
1260. Galeopsis. Upper lip of corolla somewhat crenate, vaulted ; lower 2-toothed above. 
1261. Galeobdolon. Cal. 5-fid, unequal, awned. Upper lip of corolla vaulted, entire; lower trifid, with 
acute segments. Anthers smooth. 
1262. Betonica. Calyx awned. Upper lip of cor. ascending, flattish. Tube cylindrical. 
1263. Stachys. Upper lip of cor. vaulted ; lower reflexed at edges, intermediate larger and emarginate. 
Stamens after flowering reflexed towards the sides. 
1264. Zietenia. Cal. 5-parted, with subulate very long equal segments. Segments of lower lip of cor. re- 
flexed ; intermediate folded together and emarginate. Stamens after flowering reflexed towards the sides. 
Grain one. 
1265. Ballota. Cal. hypocrateriform, 5-toothed, 10-lined. Upper lip of cor. crenate concave. Grains ovate 
3-cornered. 
1266. Marrubium. Cal. hypocrateriform, rigid, 10 lined. Upper lip of cor. bifid, linear, straight. 
1267. Leonurus. Cal. 5-angled, 5-toothed. Upper lip of cor. villous, flat, entire ; lower 3-parted, with the 
middle segment undivided. Anthers covered, with shining spots. 
1268. Phlomis. Calyx 5-angled, 5-toothed. Helmet compressed, keeled, emarginate. Seeds bearded at end. 
1269. Leucas. Cal. tubular, 10-striated, 8-10-toothed, with an orifice, either equal or oblique. Corolla ringent. 
Helmet concave, entire, bearded : lower lip 3-fid, with the middle segment largest. Anthers twin, beardless, 
with divaricating lobes. Stigma 2-lipped, with the upper segment very short. 
1270. Leonotis. Differs from the last in having an elongated helmet, and the lower lip small and withering : 
the middle segment scarcely larger than the others. 
1271. Moluccella. Cal. campanulate, enlarged, wider than corolla, spiny. 
1272. Clinopodiutn. Invol. of many bristles beneath the whorl. Corolla 2-lipped. Upper lip of corolla flat, 
obcordate, straight. 
