LAMIUM.] LABIATES. 329 



purple, rarely white ; lateral lobes generally 1-2-toothed at the base. 



DISTRIB. Europe, Canaries, N. and W. Asia; introd. in N. America. 

 L. PURPU'REUM proper ; corolla-tube longer than the calyx-teeth, with a ring 



of hairs within. VAR. decip'iens, Sonder ; has leaves and bracts deeply 



crenate. 

 Sub-sp. L. HY'BRIDUM, Vill, ; leaves more deeply crenate, floral with cuneate 



bases, calyx-teeth erect ; corolla-tube shorter, ring of hairs within obscure. 



L. dissec'tum, With. ; L. inci'sum, Willd. 



2. Ii. interme dium, Fries ; leaves petioled orbicular-cordate deeply 

 crenate, whorls crowded, calyx slightly hairy, teeth spreading in fruit 

 much longer than the tube. 



Cultivated ground, Scotland, N. England ; Ireland, rare ; fl. June-Sept. 

 Intermediate between purpureum and L. amplexicaule, of which it has the 

 habit, overlapping upper bracts, and foliage ; stouter and more succulent 

 than either ; the long calyx-teeth distinguish it from both. The tube of 

 the corolla slightly exceeds the calyx and has a very obscure ring of hairs ; 

 lateral lobes toothed. DISTRIB. N.W. Europe. 



3. Ii. amplexicau'le, L. ; leaves petioled orbicular inciso-crenate, 

 whorls distant, calyx small densely pubescent, teeth converging in fruit 

 about equalling the tube, corolla-tube long slender. Henbit Deadnettle. 

 "Waste sandy places, N. to Orkney ; Ireland ; Channel Islands ; fl. May-Aug. 



Hairy or almost glabrous. Stem 4-10 in., branched from the base. Leaves 

 small, |-| in., lower long-petioled, almost lobulate, base rounded or cordate. 

 Bracts sessile, broader than long, many-lobed, bases overlapping. Corolla 

 sometimes imperfect, often 5 in., very slender, rosy, pubescent. DISTRIB. 

 Europe, N. Africa, N. and W. Asia, N.W. India; introd. in N. America. 



SECTION 2. Lamioty'pus. Perennial. Corolla-tube curved, ascending, 

 with a ring of hairs inside, constricted below the ring. Anthers hairy. 

 Nutlets without scales. 



4. Ii, al'buxn, L. ; leaves all petioled cordate crenate or serrate, calyx- 

 teeth narrow straight longer than the straight tube, corolla white, tube 

 gibbous at the base below, ring of hairs oblique. 



Fields and waste places, N. to Orkney ; rare and local in Scotland and Ireland ; 

 Channel Islands ; fl. May-Dec. More or less hairy. Rootstock creeping, 

 branched, stoloniferous. Stem 6-18 in., rooting and branched from the 

 base, then erect. Leaves 1-3 in., sometimes blotched with white, lower 

 long-petioled, subacute or acuminate, rarely deeply incised. Whorls 6-10- 

 fld., upper crowded, lower remote ; bracts shortly petioled. Calyx glabrous 

 or hairy ; teeth triangular-subulate, points long slender. Corolla f-1 in,, 

 throat gradually dilated ; upper lip vaulted, villous ; lateral lobes variable. 

 . Stamens, sometimes outer, at others inner pair longest. DISTRIB. Europe, 

 N. Africa, N. Asia ; introd. in IS". America. 



L. MACTJLA'TUM, L. ; leaves all petioled cordate crenate or serrate, calyx- 

 teeth broad recurved as 'long as the oblique tube, corolla usually purple, 

 tube equal at the base -below, ring of hairs transverse. L. Iceviga'twni, 

 Engl. Bot. 



