252 ERICACEAE. [Andromeda. 



A. polifo'lia, L. ; leaves elliptic-lanceolate glabrous shining. 

 Peat bogs, Wales, N. Somerset, "W. Norfolk, and from Hunts and Salop to 

 Perth ; local in Ireland ; fl. May-Aug. — Stems long, ascending, rootiug at 

 the base ; branches 6-12 in., suberect, twiggy ; bark smooth, brown. Leaves 

 shortly petioled, f-l§ iu., acute, thickly coriaceous, glaucous beneath, 

 margins strongly recurved. Racemes short. Flowers drooping ; pedicels 

 \-\ in., slender, red. Sepals small, obtuse. Corolla J in., purplish ; lobes 

 5, revolute. Filaments bearded; anthers short. Capsule erect, 5-lobed. 

 Seeds turned in all directions, ovoid. 



5. ERICA, L. Heath. 



Rigid, much-branched, evergreen shrubs. Leaves whorled, rarely alter- 

 nate or scattered, narrow, rigid. Flowers usually nodding ; pedicels 2-3- 

 bracteate. Sepals 4. Corolla hypogynous, ovoid globose campanulate or 

 tubular, 4-lobed, persistent, honeyed. Stamens 8, inserted on the disk ; 

 anther-cells awned or not, opening by pores or slits. Ovary 4-celled ; 

 styles filiform, stigma capitate dilated 4-lobed ; ovules many. Capsule 4- 

 celled, loculicidally 4-valved, many-seeded. Seeds attached to a central 

 column, ovoid or compressed, testa smooth or reticulate. — Distrib. 

 Europe, N. Asia, N. Africa, abundant in S. Africa ; species about 400. — 

 Etym. Classical. 



1. E. Tetralix, L. ; pubescent and sometimes glandular, leaves 4 in a 

 whorl ciliate, flowers subumbellate, corolla regular ovoid, anthers included 

 with subulate awns. Cross-leaved Heath. 



Heaths, abundant, N. to Shetland ; ascends to 2,400 ft. in the Highlands ; 

 Ireland; Channel Islands; fl. July-Sept. — Sometimes almost woolly; 

 glandular hairs stiff or slender or 0. Stems 12-18 in., wiry; branches 

 slender. Leaves £-£ in., in close or distant whorls, spreading, linear, 

 obtuse, rarely glabrous ; margins revolute to the midrib. Flowers drooping, 

 homogamous ; pedicels short, bracteolate in the middle. Sepals oblong- 

 lanceolate. Corolla § in., mouth scarcely oblique, rose-red, upper side 

 darkest. Ovary usually woolly and witli gland-tipped hairs. — Distrib. N. 

 and W. Europe to Russia. 



E. Tet'ralix proper ; pubescent and usually glandular, irregularly branched, 

 leaves linear-oblong pubescent above, ovary pubescent. 



Sub-sp. E. Mackati, Hook. (E. Mackaiana, Bab.) ; nearly glabrous, more 

 corymbosely branched, leaves ovate-oblong glabrate, flowers laxly umbelled, 

 ovary glabrous. — Galway. (Spain.) 



2. E. cine'rea, L. ; glabrous, leaves 3 in a whorl, flowers whorled, 

 corolla ovoid mouth regular, anthers included with toothed appendages at 

 the base. ". 



Heaths and commons, N". to Shetland ; ascends to 2,200 ft. in the Highlands ; 

 Ireland ; Channel Islands ; fl. July-Sept. — Stems 1-2 ft., much-branched ; 

 branches slender, ultimate pubescent. Leaves £-J in., irregularly whorled, 

 with short leafy branches in the axils, linear, acute, margins revolute. 

 Mowers drooping or horizontal, homogamous ; pedicels short, puberulous ; 

 bracteoles under the calyx. Sepals ovate-lanceolate. Corolla |-j in., 



