570 LABIATA. 
South Mexico, Zacuapan (Linden, 209), Cordillera of Vera Cruz, at 3000 feet 
(Galeotti, 907), Misantla (Hahn). Hb. Kew. | 
23. PERILOMIA. 
Perilomia, H. B. K. Nov. Gen. et Sp. ii. p. 326, t. 159; Benth. et Hook. Gen. Plant. 1. p. 1202. — 
About eight shrubby species, inhabiting America from Mexico to Bolivia and Chili. 
1. Perilomia tomentosa, Benth. Lab. p. 446; DC. Prodr. xii. p. 432. 
SoutH Mexico (Mogino & Sessé).—PrErv. 
24, BRUNELLA. 
Brunella, Linn. Gen. Plant. ed. 1, p. 77 (Prunella, Linn. Gen. Plant. n. 735); Benth. et Hook. 
Gen. Plant. ii. p. 1203. 
Two or three herbaceous species, very widely diffused. in temperate regions, including 
the mountains within the tropics. 
1. Brunella vulgaris, Linn. Sp. Pl. p. 837; DC. Prodr. xii. p. 410; A. Gr. 
Synop. Fl. N. Am. ii. p. 382. 
This species is spread over the whole range of the genus, in Evrops, Asia, AMERICA, 
and AustRALIA. Hb. Kew. 
25. PHYSOSTEGIA. 
Physostegia, Benth. in Bot. Reg. sub t. 1289; Benth. et Hook. Gen. Plant. ii. p. 1204. 
Three herbaceous species, inhabiting North America. 
1. Physostegia virginiana, Benth. Lab. p- 504; DC. Prodr. xii. p. 433; A. Gr. ° 
Synop. Fl. N. Am. ii. p. 383 (varietates). 
Dracocephalum virginianum, Linn. ; Bot. Mag. t. 467. 
Dracocephalum variegatum, Vent. Hort. Cels. t. 44. 
Dracocephalum speciosum, Sweet’s Brit. Fl. Gard. t. 98. 
Physostegia imbricata, Hook. Bot. Mag. t. 3386, non Benth. 
CanabDa and SAasKATCHEWAN to Ftoripa and Texas.—NortH Mexico, Saltillo, Coahuila 
(Palmer, 2043). Hb. Kew. 
26. MARRUBIUM. 
Marrubium, Linn. Gen. Plant. n. 721 ; Benth. et Hook. Gen. Plant. ii. p. 1206. 
Herbs. About thirty species, inhabiting Europe, North Africa, and especially extra- 
tropical Asia, one of which is now common in America, both North and South. 
1. Marrubium vulgare, Linn. Sp. Pl. p. 816; DC. Prodr. xii. p. 453; A, Gr. 
Synop. Fl. N. Am. ii. p. 384; Hayne, Arzn. Gew. xi. t. 40. 
