90 DIDYNAMIA— GYMNOSPERMIA. Lamium. 



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 Reess Cycl. v. 20. 

 Tour7i. 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. Antli. incumbent, oblong, bivalve, hairy. Germ. 

 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 Cyclojxjedia. Leaves heart-shaped, 

 mostly serrated and downy. Tl. scentless, numerous, 

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



1. L. albmii. 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.S. 88. FL Br. 626. En^l. 



Bat. v.W.t. 768. Curt. Lond.fasc. 2. t. 45. Mart. Rust. t.26. 



Hook. Scot. 181. Ehrh. PL Of. ] 95. Fl. Dan. t. 594. Bull. Fr. 



t.2\3. Rail Syn. 240. Ger. Em. 702. f. 

 L. n. 271. Hall. Hist. t>. 1. 118. 

 L. Plinii. Malth. Valgr. c. 2. 473./. 

 L. sive Archangelica, Hore albo. Lob. Ic. 520./. 



