AJUGA.] LABIATE. 295 



obovate, obtuse ; those on the stolons small, obovate-spathulate ; cauline 

 few, sessile, oblong, obtuse. Spike 3-8 in. ; bracts subentire, obtuse, much 

 shorter than the upper flowers, upper often purplish ; whorls 6-10- 

 flowered ; pedicels very short. Calyx small, teeth triangular acute 

 ciliate. Corolla -f in., rarely white or rosy, mid-lobe of lower lip broadly 

 obcordate. DISTHIB. Europe. A form without stolons (var. psewlo-alpina) 

 has been mistaken for A. alpina. The A. alpina of Smith is the exotic 

 A. genevensis, L. 



2. A. pyramid alls, L. ; pilose with soft jointed hairs, leaves obscurely 

 crenate, whorls in a compact pyramidal spike, upper bracts appressed, 

 flowers blue. A. genevensis, var. Benth. 



Mountain woods and banks of streams in the N. of Scotland, from Argyle to 

 Orkney and the Hebrides ; W. of Ireland, Arran Isles and Burren ; fl. 

 May- July. Similar to A. reptans, but stolons produced late only ; radical 

 leaves very shortly petioled ; calyx woolly with longer teeth ; lower corolla 

 lip smaller, its mid-lobe less cordate. DISTRIB. Europe. 



3. A. Chamsepitys, Schrcber ; annual, villous, cauline -leaves 3-partite, 

 flowers solitary in the axils of leaf-like bracts yellow. Ground Pine. 

 Chalky fields, local, from Bedford and Cambridge to Kent and Wilts ; a 



colonist, Watson ; fl. May-Sept. Hairs long scattered. Stem 3-6 in. ; 

 branches ascending from the root, densely leafy. Leaves, radical early 

 withering, petioled, ovate-lanceolate, entire or toothed ; cauline 1-1 i in., 

 spreading, lobes narrow-linear. W/im-ls many, 2-flowered ; bracts many 

 times longer than the flowers. Calyx hispid ; teeth narrowly triangular. 

 Corolla J in. ; lower lip spotted with red. Nutlets large, oblong, deeply 

 pitted. DISTRIB. Europe from Belgium southwards, N. Africa, W. Asia. 



ORDER LVI. VERBENA CE^:. 



Herbs, shrubs, or trees. Leaves opposite or whorled, exstipulate. Flowers 

 2-sexual, cymose, irregular, bracteate. Calyx inferior, tubular, cleft or 

 toothed, persistent, imbricate in bud. Corolla hypogynous, tubular, 

 usually 2-lipped, imbricate in bud. Stamens usually 4, didynamous, in- 

 serted on the corolla-tube ; anthers 2-celled. Ovary 2-4-celled ; style 

 simple, terminal, stigma simple or 2-fid ; ovules solitary or 2 collateral in 

 each cell, erect and anatropous or ascending and 4-anatropous. Fruit a 2- 

 or 4-celled berry, or a drupe with 2-4 1-2-celled stones, or of 4 nutlets. 

 Seeds ascending, exalbuminous ; cotyledons foliaceous, radicle inferior. 

 DISTRIB. Chiefly tropical ; genera 40 ; species 550. AFFINITIES. With 

 Borraginece and Labiatoe. PROPERTIES. Chiefly bitter and astringent. 



1. VERBE'NA, L. VERVAIN. 



Herbs or undershrubs. Stem 4-gonous. Leaves opposite or 3-nate, 

 simple pinnatilid or 3-partite. Flowers bracteate, in terminal spikes or 

 racemes. Calyx, tubular, 5-ribbed, unequally 5-toothed. Corolla salver- 

 shaped ; tube straight or curved, villous within ; limb oblique, 2-lipped, 

 5-fid. Stamens 4, 2 or all perfect, included. Disk annular. Ovary 4- 

 celled ; style slender, 2-lobed, one lobe only stigmatiferous ; ovules solitary 



