234 ERICACEAE. [CALLUXA. 



7. CALLU'NA, Salisbury. LINO. 



A small, much-branched, gregarious shrub. Leaves minute, opposite, 

 imbricate (whence the branches appear tetragonal). Flowers on axillary 

 peduncles with 2 pairs of opposite bracts under the calyx. Sepals 4, sca- 

 rious, coloured. Corolla shorter than the sepals, hypogvnous, 4-partitr. 

 Stamens 8, inserted on the disk ; anthers awned, cells opening by short 

 lateral slits. Ovary 4-celled ; style exserted, stigma dilated obscurely 

 4-lobed ; ovules 2, pendulous from the top of each cell. Capsule 4-celled, 

 septicidally 4-valved, septa attached to the axis. Seeds 1-2 in each cell, 

 attached to the central column. DISTRIB. Europe (Arctic), "VV. Siberia, 

 Azores, Greenland, Newfoundland, and N. U. States (very rare). ETYM. 

 Ka\\vvw, the twigs being used for sweeping. 



1. C. vulga'ris, Salisb. ; leaves 3-gonous, gibbous at the base. Erica, L. 

 Heaths and moors, ascending to 3,300 ft. in the Highlands ; fl. July-Sept. 

 Stem 1-2 ft., woody, inclined ; branches elongate. Leaves A in., linear- 

 oblong, glabrous (vara. glaltrata and attantica, Teem, sp.) or ciliate or 

 pubescent or hoary (var. incana). flowers very many ; pedicels very short ; 

 outer bracts leaf -like, inner scarious. Sepals iV in., concave, obtuse, rose- 

 purple or white, shining. Corolla much shorter, lobes triangular. Anthen 

 ' short, dorsally fixed, 2-fid. Style exserted. Oearif pubescent. 

 8. DABEOCIA, Zo. ST. DABEOC'S HEATH. 



A small shrub ; buds scaly. Leaves alternate, evergreen. /'A//'v/-.s- ter- 

 minal, racemose. Sepals 4. Corolla hypogynous, urceolate ; lobes 4, re- 

 flexed. Staniois 8, hypogynous, included ; anthers obtuse, cells opening 

 by pores, awnless. Ovary 4-celled ; style simple, stigma dilated ; ovules 

 many. Capsule 4-celled, septicidally 4-valved, axis persistent. Seeds 

 small, testa smooth or pitted. DISTRIB. Ireland, \V. France, Spain. 

 ETYM. St. Dabeoc. 



1. D. polifo lia, Don; leaves elliptic-ovate obtuse ciliate. 

 Boggy heaths, Connemara and Mayo ; fl. Aug. Stem 1-2 ft., woody, decum- 

 bent ; bark flaking ; branches slender, erect, pilose and glandular, /.i <.-. 

 J in., shortly petioled, margins recurved, bright green, glossy above, 

 white and woolly below. Raceme terminal, lax, 5-10-flowered, glandular ; 

 flowers drooping ; pedicels stout, curved ; bracts leafy. Sepals ovate-lanceo- 

 late, ciliate. Corolla $ in. , crimson purple or white, lobes short. Filaments flat ; 

 anthers sagittate, 2-fid, purple. Ovary villous and glandular ; stigma truncate. 



9. PHYLLODOCE, Salisbury. 



Small shrubs ; buds scaly. Leaves evergreen, scattered. Flon;-,-* soli- 

 tary or umbelled. Sepals 5. Corolla urceolate or campanulate, . r -lid. 

 Stamens 10, hypogynous, filaments slender; anthers truncate, opening l>y 

 pores, awnless. Ovary 5-celled; style slender, stigma capitate. Capsule 

 5-celled, septicidally 5-valved, many-seeded. Seeds shining. DISTKIU. 

 Arctic regions ; species 3 or 4. ETYM. Mythological. 



1. P. caeru'lea, Sab. ; leaves shortly petioled crowded spreading linear 

 obtuse glabrous. P. taxifolia, Salisb. ; Menziesia, Swartz. 

 Heathy moors, Sow of Atholl, alt. 2,700 ft., extremely rare ; fl. May. Short, 



depressed, much branched, woody; branches 5-10 in., tubercled. /,'*..< 



