LABIATE. LXXXVI. MARRUBIUM. 



841 



top ; lobes short, obtuse, stigmatiferous at apex. Achenia dry, 

 obtuse, not truncate at apex. Perennial, usually tomentose or 

 woolly herbs. Leaves wrinkled, rarely cordate at the base, 

 usually cut ; floral leaves similar, exceeding the flowers. Whorls 

 axillary, usually many rarely few-flowered. Bracteas subulate, 

 exceeding the calyxes, rarely very short, and almost wanting. 



SECT. I. LAGOPSIS (from Xctyor, logos, a hare ; and oyir, 

 opsis, resemblance ; application not evident.) Benth. lab. p. 

 586. Lagopsis, Bunge, mon. gen. molucc. Teeth of calyx 5. 

 Tube of corolla exannulate ; upper lip quite entire. Leaves 

 roundish, palmatifid. 



1 M. IXCI'SUM (Benth. lab. p. 586.) leaves roundish, subpal- 

 mately-lobed, cut, greenish on both surfaces; bracteas setaceous; 

 calyx glabrous or scarcely tomentose, with 5 setaceous teeth ; 

 upper lip of corolla oblong, entire. If. . H. Native of Siberia, 

 Dauria, and China, near Pekin. Leonurus supinus, Willd. spec. 

 3. p. 116. Plant ascending, pubescent. Whorls 6- 10 -flowered. 

 Corollas whitish, villous outside. 



C/-leaved Horehound. PI. j to i foot. 



2 M. ERIOSTACHVUM (Benth. lab. p. 586.) leaves roundish, 

 palmately lobed, cut, green on both surfaces ; bracteas stiff, subu- 

 late ; calyx densely woolly, with 5 subulate spinescent teeth ; 

 upper lip of corolla short, entire. Tl . H. Native of Siberia. 

 Leonurus eriostachys, Turcz. mss. Lagopsis viridis, Bunge, 

 mon. gen. molucc. ined. Plant ascending, pubescent, but the tops 

 of the stems are woolly. Leaves 5-7-parted ; lobes cut. Whorls 

 about 10-flowered. Corollas like those of M. lanata. 



Jt'oolly-spiked Horehound. PI. J foot. 



3 M. LANA'TCM (Benth. lab. p. 587.) leaves roundish, deeply 

 lobed, clothed with white wool on both surfaces ; bracteas seta- 

 ceous ; calyx densely woolly, with 5 subulate subspinescent 

 teeth ; upper lip of corolla short, entire. If. . H. Native of 

 Altaia, in exposed stony places at the river Tschuja. Molucella 

 marrubiastrum, Steph. in mem. soc. mosc. Z. p. 8. Ledeb. fl. 

 ross. alt. ill. t. 150. Lagopsis incana, Bunge, mon. gen. mo- 

 lucc. ined. Stems numerous, decumbent, rising from a thick 

 base, ascending at top. Whorls approximate into oblong, woolly 

 spikes. Corolla blackish brown, villous outside. 



Woolly horehound. PI. decumbent. 



SECT. II. MARRD'BIUM (see genus for derivation.) Benth. 

 lab. p. 587. Teeth of calyx 5-10. Tube of corolla subannu- 

 late inside ; tipper lip emarginate or bifid. Leaves roundish or 

 ovate, crenated, rarely cut. 



4 M. ALY'SSON (Lin. spec. p. 815.) leaves roundish, cune- 

 ated at the base, deeply crenated or lobed, clothed with soft 

 white villi on both surfaces ; bracteas almost wanting ; calyx 

 woolly, with 5 stiff spreading teeth ; upper lip of corolla short, 

 emarginately bifid. T. H. Native of the region of the Medi- 

 terranean ; as of Spain, Sardinia, Apulia, Egypt, &c. M. plica- 

 tum, Forsk. fl. aegypt. arab. p. 213. Mor. hist. 3. p. 377. sect. 

 11. t. 10. f. 12. Stems thick, ascending, woolly. Whorls dis- 

 tant, 10-15-flowered. Corollas minute, dark purple. 



Alysson or Plaited-leaved Horehound. Fl. July, Au<r. Clt. 

 1597. PI. I to 1 foot. 



5 M. PE'RSICUM (Meyer, verz. pflanz. p. 95.) leaves orbicular, 

 crenated, clothed with white wool on both surfaces ; bracteas 

 almost wanting ; calyx woolly, with 5 stiff spreading teeth ; 

 upper lip of corolla oblong. If. . H. Native of Persia, in dry 

 stony places on theTalusch mountains near Swant. Habit, leaves, 

 and inflorescence nearly of M. culgare, but is clothed with white 

 wool in all parts. Flowers more numerous in the whorls than in 

 M. Alysson. Corolla a little larger. 



Persian Horehound. PI. to 1 foot. 



6 M. C^RCLE'SCENS (Desf. cat. hort. par. ed. 3. p. 395.) stems 



VOL, IV. 



tall, clothed with white wool ; leaves ovate, crenated at apex, 

 scarcely wrinkled, green above, canescent beneath ; outer brac- 

 teas shorter than the calyxes ; calyx clothed with white wool, 

 with 5 subulate straight spreading teeth ; galea of corolla oblong, 

 bifid at apex. If, . H. Native of Persia. Leaves form of those 

 of M. Astracdnicum, clothed with white tomentum or wool be- 

 neath while young, but almost glabrous in the adult state. Co- 

 rollas blue. 



Blueish-fiowered Horehound. PL 2 to 3 feet. 



7 M. CATARLEFOLICM (Desr. in Lam. diet. 3. p. 717.) stems 

 clothed with hoary tomentum ; leaves ovate, crenated, a little 

 wrinkled, pubescent, canescent beneath ; outer bracteas shorter 

 than the calyxes ; calyx clothed with hoary tomentum, with 5 

 short stiff spreading recurved teeth ; galea oblong, bifid at apex. 

 y.. H. Native of Cappadocia. Nearly allied to M. Astracdni- 

 cum, but more erect, more branched, and clothed with hoary to- 

 mentum, never woolly nor villous. Whorls more numerous and 

 smaller, as well as the flowers. Corollas white. 



Cat-mint- leaved Horehound. Fl. July, Aug. Clt. 1819. PI. 

 1 to 2 feet. 



8 M. ASTRACA'NICUM (Jacq. icon. rar. 1. p. 11. t. 109.) stems 

 loosely villous, rather woolly ; leaves ovate, crenated at top, 

 bullately wrinkled, green and villous on both surfaces, or 

 scarcely canescent beneath ; outer bracteas shorter than the ca- 

 lyxes ; calyx pubescent, with 5 short acute straight or subre- 

 curved teeth ; galea of corolla oblong, bifid at apex. 1(.. H. 

 Native of the Levant ; Persia, on the higher Talusch mountains ; 

 and Cashmere, but not about Astracan. Rchb. icon. bot. eur. 3. 

 p. 61. t. 270. Intermediate between M. candidistimum and M. 

 leonuroldes. Lower parts of stems and lower leaves clothed 

 with long soft hairs. Whorls dense, many-flowered. Corolla 

 blue or white. 



Astracan Horehound. Fl. July, Aug. Clt. 1816. PL 1$ 

 to 2 feet. 



9 M. LEONUROI'DES (Desr. in Lam. diet. 3. p. 715.) stems ra- 

 ther woolly ; leaves ovate or roundish, coarsely and deeply cre- 

 nated, clothed with soft pubescence, canescent beneath or on 

 both surfaces ; outer bracteas scarcely shorter than the calyxes ; 

 calyx clothed with white wool, with 5 subulate recurvedly spread- 

 ing teeth ; galea of corolla oblong, bifid at apex. %. H. Na- 

 tive of Caucasus and near Astracan. Rchb. icon. bot. eur. 3. p. 

 84. t. 299. M. Astracanicum, Bieb. fl. taur. 2. p. 52. ? and of 

 many other authors. M. affine, Horn. hort. hafn. p. 556. Lower 

 leaves roundish ; superior ones ovate. Whorls size of those of 

 M. vulgare. Corollas blueish purple. 



Leonurus-like Horehound. Fl. July, Sept. Clt. 1819. PI. 

 1 to 2 feet. 



10 M. PLDMOSUM (Meyer, verz. pflanz. p. 96.) leaves round- 

 ish, deeply lobed, clothed with short villi on both surfaces, rather 

 canescent ; calyx clothed with soft villi, with 5 teeth, which are, 

 as well as the bracteas subulate and plumose ; galea of corolla 

 bifid at apex. If. . H. Native of Caucasus. Whorls distant, 

 many-flowered, nearly an inch in diameter. Corolla scarcely 

 longer than the calycine teeth. 



Feat her y-bractead Horehound. PI. ascending. 



11 M. VELUTI'NUM (Sibth. et Smith, fl. graec. 6. p. 49. t. 561.) 

 branches elongated, tomentose, woolly at the base ; leaves orbi- 

 cular, crenated, subcuneated at the base, clothed with velvety 

 villi on both surfaces ; whorls ample, many-flowered ; calyx 

 clothed with tomentose pubescence, with 5 teeth, which are subu- 

 late, stiff, straight, or at length spreading, as well as the bracteas ; 

 galea of corolla oblong, bifid. If.. H. Native of Mount Par- 

 nassus. Allied to M. candidissimum, but differs in the colour 

 of the whole plant, and in the form of the leaves. Corollas 

 white. ? 



Velvety Horehound. PI. li foot. 

 5 P 



