292 LABIATE. [L.utirM. 



. I. amplexicau'le, L. ; leaves petioled orbicular deeply civnatf, 

 whorls distant, c-alyx densely pubescent, teeth converging in t'ruit about 

 equalling the tube, corolla-tube long slender. Henbit Dcadncttle. 

 Waste sandy places; rather rare in Ireland; fl. May-Aug. Hairy or almost 

 glabrous. Stem 4-10 in., branched from the base. Leaves small, -J in., 

 lower long-petioled, almost lobulate, base rounded or cordate. /.'/</.- 

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

 times imperfect, often f in. , very slender, rosy, pubescent. DISTIUB. Europe, 

 N. Africa, Siberia, W. Asia to 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. 

 Xuth As- without scales. 



4. L. al bum, 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. 



Field sand waste places, from Moray southwards, rare and local in Scotland and 

 Ireland; fl. May-Dec. More or less hairy, liootstock 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-pi-tided, 

 subacute or acuminate, rarely deeply incised. 1 1 '//;/. C-10-ttowered. upper 

 crowded, lower remote ; bracts shortly petioled. Calyx glabrous or hairy ; 

 teeth triangular-subulate, with long slender points. Corolla -1 in., throat 

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

 DISTIUB. Europe, N. Africa, N. Asia ; introd. in N. America. 

 L. MACULA'TUM, L. ; leaves all petioled cordate crenate or serrate, ralyx- 



teeth broad strongly recurved as long as the oblique tube, corolla usually 



purple equal at the base below, ring of hairs trans vcr>e. 



Waste places, copses, &c., in England and Scotland, not indigenous; fl. 

 June-Sept. Very closely allied to L. album, but the calyx and corolla 

 are different ; flowers fewer, rarely white ; leaves more wrinkled, and almost 

 always with a median white stripe, and the corolla-throat is suddenly dilated. 

 DISTRIB. Europe, N. Africa, Siberia, W. Asia. 



SECTION 3. Galeob dolon, Huds. (gen.). Perennial. Corolla-tube 

 curved, ascending, with a ring of hairs inside, constricted below the ring ; 

 upper lip stipitate. Anthers glabrous. Nutlets without scales. 



5. L. Galeob'dolon, Crantz ; leaves petioled ovate acuminate douhly- 

 c]-' -mite or -serrate, calyx-teeth shorter than the oblique tube, corolla 

 yellow, ring of hairs oblique. Gnleobdolon luteum, Huds. Yellow Archangel. 

 Hedges and copses, chiefly on chalk and limestone, from Yorkshire southwards, 



local ; E. of Ireland, rare and local ; tt. May-June. Hispid or subglabrous, 

 hairs often reflexed. Ro'ttstock short, stolomferous. Stem* 6-18 in., flowering 

 erect; barren elongate, prostrate. Leaves l=-2 in., petioles variable. Whorlt 

 remote, 6-10-flowered ; upper bracts sometimes lanceolate. <',,l,i.,--t,.-th. 

 mucronate. Corolla f-1 in., tube short, gibbous at the base below ; iip.s long, 

 lower spotted red-brown. DISTRIB. Europe, W. Siberia. 



15. BALLO'TA, L. BLACK HoKEHOVND. 



Perennial, hairy or woolly herbs or undershnibs. Whorls axillary, 

 di'iise-ttowered ; bracteoles subulate ; flowers small. Calyx tubular or funnel- 



