( 31 .) 
LA'MIUM* *. 
Linnean Class and Order. DiDYNA ; MiAf, Gymnosper'mia J. 
Natural Order. LABiA'TiE. Juss. — Lind. Syn. p. 196. — Introd. 
to Nat. Syst. of Bot. p. 239. — Rich, by Macgillv. p. 439. 
Gen. Char. Calyx of one leaf, tubular, dilated towards the 
mouth, with five nearly equal, awned teeth, spreading at the point, 
permanent. Corolla ringent, longer than the calyx ; tube cylindri- 
cal, short; limb open; throat inflated, compressed, bulging, bor- 
dered at each side with one or more little reflexed teeth ; upper lip 
vaulted, roundish, blunt, undivided or cloven ; lower shorter, in- 
versely-heart-shaped, notched, more or less reflexed. Filaments 
four, awl-shaped, covered by the upper lip. Anthers incumbent, 
oblong, hairy, 2-valved. Gcrmen superior, 4-cleft. Style thread- 
shaped, the length of the stamens. Stigma in two pointed spreading 
segments. Seeds four, level-topped, short, three-cornered, convex 
on one side, blunt at each end, in the bottom of the open-mouthed 
calyx. — The bristle-shaped tooth on each side the mouth of the 
corolla will distinguish this from other genera in the same class 
and order. 
Perennial, or annual herbs, with opposite heart-shaped, mostly 
serrated, downy leaves, and numerous, large, whorled, scentless 
flowers, which are either red, purplish, or white ; never yellow. 
Five species British. 
LA'MIUM A'LBUM. White Dead-nettle, or Archangel. 
Spec. Char. 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, spear-shaped. 
Eng. Bot. t.768. — Curt FI. Lond. 1. 115. — Martyn’s Flora Rustica, t. 26. — 
Sm. FI. Br. v. ii. p. 626.— Eng. FI. v.iii. p. 89. — With. (7th ed.) v. iii. p. 708. — 
Lind. Syn. p. 203. — Hook. Br. FI. p. 276. — Sibth. FI. Oxon. p. 183. — Abbot’s 
FI. Bedf. p. 128. — Relh. FI. Cant. (3rd edit. ) p.238. — Purt. Midi. FI. v. i. p. 
269.— Hook. FI. Scot. p. 181.— Grev. FI. Edin. p. 130.— Walk. FI. Oxf. p. 165. 
— Ray’s Syn. p. 240. — Johnson’s Gerarde, 702. 
Localities. — Borders of fields, waste places, and road-sides. Common. 
Fig. 1. Calyx. — Fig. 2. The same with the 4 Seeds. — Fig. 3. Corolla. — 
Fig. 4. The upper lip of the Corolla, and part of the Tube, showing the 4 Sta- 
mens. — Fig. 5. Germen, Style, and Stigma. — Fig. 6. Seeds. 
* From laimos, Gr. the throat, on account of the shape of the flower, 
t From dis, Gr. twice, and dunamis, Gr. power. The 14th class in the 
Artificial System of Linnieus, comprehending those plants which have perfect 
flowers, with 4 Stamens in each, the two outer of which are longer than the two 
inner. These flowers have only one pistil, and the corolla is irregular, either 
gaping (ringent), that is, having the lips open ; or masked (personate), having 
the lips closed by a palate. See Linaria Cymbalaria, t. 23. The class is di- 
vided into two orders, viz. Gymnospermia, in which the seeds are 4, naked, 
and situated within the base of the calyx ; and Angiospermia, in which the 
seeds are numerous, and all inclosed in a superior, 2-celled capsule. 
t From gumnos, Gr. naked, and sperma, Gr. a seed. The seeds in this 
order being (apparently) naked, and lodged in the bottom of the permanent 
calyx, which serves instead of a seed-vessel. It contains most of the Labiatce 
(lipped plants) of Jussieu, and the Verticillatee (plants that flower at the 
joints) of Ray and Linna.us. 
