286 LABI AT sE. [Xi-:i'KT,\. 



A in., dotted with purple, tube curved. Nutlets minutely granulate. 



DISTRIB. Europe, Siberia, W. Asia to the Himalaya ; introd. in N. America. 



SUB-GEN. 2. Glecho'ma, L. (gen.). WJwrh axillary ; bracts all large 

 and leaf-like. Corolla-tube long ; mid-lobe of lower lip obcordate, flat. 

 Anthers conniving, and forming a cross ; cells each with a slit. 



2. N. Glecho'ma, Benth. ; procumbent, leaves ovate- or orbieular- 

 renifoi-m deeply crenate green, flowers blue-purple. Glechoma hederacca, L. 

 Ground Ivy, 

 Hedgebanks and copses ; ascends to near 1,300 ft. in Northumberland ; 



fl. March-June. Perennial, more or less pubescent. Stems 6-18 in., rooting 



at the base, slender, branched. Leaves ij-1^ in. diam., petioles l,--2 in. 



Whorls 3-6-flowered ; bracteoles subulate, equalling the short pc'dicels. 



Calyx-teeth short, recurved. Corolla i-1 in. Nutlets minutely granulate. 



DISTRIB. Europe (Arctic), N. Asia, Japan, W. Asia ; introd. in the N. U. 



ates. Bitter and aromatic, formerly used for beer, occasionally for tea. 

 VAR. 1, Glecho'ma, proper ; subglabrous, corolla-tube twice as long as the 

 calyx. VAR. 2, paniflo'ra, Benth. ; subglabrous, corolla-tube equalling the 

 calyx. VAR. 3, hirsu'ta, Waldst. and Kit. (sp.); hispidly pubescent, corolla- 

 tube twice as long as the calyx. 



8. PRUNEL'LA, L. SELF-HEAL. 



Small, hairy, perennial herbs. Whorls about 6-flowered, in dense 

 terminal heads, surrounded by orbicular leaf-like bracts ; flowers purplish, 

 rarely white. Calyx subcampanulate, reticulate, 2-lipped, closed in fruit ; 

 upper lip flat, 3-toothed ; lower 2-lobed ; throat naked. Corolla-tube 

 broad, ascending, with a short hairy basal ring inside ; upper lip erect, 

 concave ; lower spreading, lateral lobes deflexed, middle concave. Stamens 

 4, exserted, filaments glabrous 2-toothed at the tip, lower tooth anther - 

 iferous ; anthers conniving in pairs under the upper lip, cells diverging. 

 Disk erect, equal. Ktyh-lobes subulate. Nutlets oblong, smooth. DISTIUB. 

 N. and S. temp, regions ; species 3. ETYM. Doubtful. 



1 . P. vulga'ris, L. ; leaves ovate-oblong, corolla not twice as long as 

 the purplish calyx. Bnmella, Tournef. 



Pastures and waste places ; ascends to 2,400 ft. in Yorkshire ; fl. July-Sept. 

 More or less hairy. Rootstock creeping. Stems 4-12 in., erect or ascending, 

 branches often abbreviated. Leaves 1-2 in., petioled, uppermost sessile, 

 ovate-oblong or oblong-lanceolate, entire toothed or subpinnatifid. M'/i ;/. 

 in cylindric spikes, 1-3 in.; bracts broadly ovate-cordate, ciliate, green with 

 purple edges ; bracteoles ; pedicels very short. Calyx-teeth minute, 

 mucronate. Corolla j-f in., purple, rarely white. DISTRIB. Europe (Arctic), 

 N. Africa, temp. Asia, America, Australia. 



9. SCUTELLA'RIA, L. SKULL-CAP. 



Slender herbs, rarely shrubs. Flowers solitary or in pairs, axillary or in 

 terminal spikes or racemes. Calyx campanulate, 2-lipped ; lips entire, 

 closing after flowering, upper surmounted by a broad concave deciduous 

 scale (the posterior lobe of the calyx), lower persistent. Corolla-tube long, 

 naked inside, throat dilated ; upper lip entire or notched ; lower dilated, 

 lateral lobes free spreading, usually connate with the upper lip, rarely with 



