DIDYNAMIA— GYMNOSPERMIA. Lamium. 89 



Perennial. April, May. 



Herb downy, with an agreeable fragrance. Roots creeping, with 

 long leafy runners. Stems leafy, more or less ascending, un- 

 branched, their hairs bent downwards. Leaves stalked, about 

 an inch wide, bluntly crenate, veiny ; paler beneath, with abun- 

 dance of small resinous dots, yielding an aromatic oil. Fl. blue, 

 with a white palate, about 6 in each whorl. 



Few perennial herbs vary so much in size ; and hence authors 

 have formerly made several species. The extremes may be seen 

 in the plates of Rivinus and Vaillant. 



289. LAMIUM. Dead-nettle. 



Linn. Gen. 292. Juss. 113. FL Br. 626. Sm. in Rees's Cycl.v. 20. 

 Tourn.t. 85. Lam. t. 506. 



Cal. tubular, dilated upwards, with 5 nearly equal, awned 

 teeth, permanent. Cor. ringent; tube cylindrical, short ; 

 limb gaping ; throat inflated, compressed, gibbous, bor- 

 dered at each side with one or more little reflexed teeth ; 

 upper lip vaulted, roundish, obtuse, undivided or cloven ; 

 lower shorter, inversely heart-shaped, notched, more or 

 less reflexed. Filam. awl-shaped, covered by the upper 

 lip. Anth. incumbent, oblong, bivalve, hairy. Gervi. 

 superior, four-cleft. Style thread-shaped, of the length 

 and situation of the stamens. Stigma in 2 acute spread- 

 ing segments. Seeds 4, level-topped, short, triangular, 

 convex at one side, abrupt at each end, in the bottom of 

 the open-mouthed calyx. 



Perennial, or annual, European herbs, of which 20 species 

 are described in the Cijclopcedia. Leaves heart-shaped, 

 mostly serrated and downy. Fl. scentless, numerous, 

 large, whorled, red, purplish, or white ; never yellow. 



1. L. album. White Dead-nettle, or Archangel. 



Leaves heart-shaped, pointed, strongly serrated, hairy. 

 Flowers about twenty in a whorl. Tube of the calyx 

 shorter than its teeth. Upper lip of the corolla notched; 

 lateral teeth solitary, lanceolate. 



L. album. Linn. Sp. PL 809. Willd. v. 3. 88. FLBr.626. Engl 

 Bot. V. II. t. 768. Curt. Lond.fasc. 2. t. 4.5. Mart. Rust. t. 26. 

 Hook. Scot. 181 . Ehrh. PL Off. 1 95. FL Dan. t. 594. BulL Fr. 

 «.213. RaiiSyn.240. Ger.Em.702.f. 



L. n. 271. HaU.Hist.v.\.\\8. 



L. Plinii. Matth. Falgr. v. 2. 473./ 



L. sive Archangelica, flore albo. Loh. Ic.520.f. 



