456 LXXXII. ERICACEAE. (C. B. Clarke.) [Gaultlieria. 



ORDER LXXXII. ERICACEIE. (By C. B. Clarke.) 



Shrubs, trees or perennial herbs. Leaves alternate or apparently whorled, 

 entire or serrate ; stipules 0. Floivers racemed, clustered or solitary ; pedicels 

 bracteate and often 2-bracteolate. Flowers regular, or in Rhododendron some- 

 times irregular, sometimes dimorphic. Calyx free (or in Diplycosia sometimes 

 much adnate to the ovary), 5- (rarely 4-6-)tid or 5-partite. Corolla hypogynous, 

 often campanulate or urceolate, sometimes deeply lobed or (in Pyrola} petals 

 free ; lobes 5-20. Stamens 10, vary 5, 8 or 20, hypogynous or slightly attached 

 to the base of the corolla (in Diplycosia sometimes epigynous) ; filaments free ; 

 anthers oblong, opening by pores or slits at the apex (in Diplarche by longi- 

 tudinal slits), the cells often produced upwards into tubes, sometimes dorsally 

 spurred. Ovary 6- (or 4-16-)eelled ; style cylindric ; stigma simple or shortly 

 lobed; ovules many in the inner angles of the cells, or placenta often pen- 

 dulous from the upper angle. Fruit capsular, loculicidally or septicidally 

 5-valved ; in Gaultheria and Diplycosia enclosed by the enlarged succulent 

 calyx, appearing baccate. Seeds many (rarely few) in each cell, albuminous; 

 testa close or loose or produced. Species 1000, in all parts of the globe. 



TRIBE I. Andromedeac. Corolla gamopetalous. Capsule loculicidally 

 5-valved. 



* Calyx in fruit succulent, surrounding the capsule. 



Anthers with 2 horns on their back 1. GAULTHERIA. 



Anthers without horns on their back 2. DIPLYCOSIA. 



* Calyx in fruit unaltered. 



f Flowers fascicled or solitary. 



Leaves very small, densely imbricated, adpressed to the stem . 3. CASSIOPE. 

 Leaves petioled, clustered at the ends of the branches .... 6. ENKIANTHUS. 



t Flowers racemed. 



Seeds linear-oblong, not margined 5. PIBRIS. 



Seeds orbicular-compressed margined 4. LEUCOTHOE. 



TRIBE II. Rhodoreae. Corolla gamopetalous. Capsule septicidal. 



Anthers opening by longitudinal slits 7. DIPLARCHE. 



Anthers opening by terminal pores 8. RHODODENDRON. 



TRIBE III. Fyroleae. Corolla polypetalous. Herbs. 

 Flowers racemose. Capsule loculicidal, dehiscing from the base . 9. PYROLA. 



1. GAULTHEHIA, Linn. 



Shrubs, erect or procumbent. Leaves persistent, alternate, serrulate. 

 Floivers small, sometimes dimorphic ; racemose or axillary and solitary ; brac- 

 teate and 2-bracteolate. Calyx ovoid, 5-fid, in fruit enlarged coloured succulent 

 and enclosing the capsule. Corolla ovoid-tubular, greenish-white or reddish ; 

 teeth small, recurved. Stamens 10; filaments more or less dilated, pilose; 

 anther-cells more or less produced upwards, dorsally 1-2-horned ; in the di- 

 morphic flowers the stamens are small with simple anthers. Ovary 5-celled ; 

 style cylindric, stigma simple ; ovules many in each cell. Capsule 5-celled, 

 loculicidally 5-valved from the apex. Seeds many, minute, subglobose, obtusely 

 angled. Species 90, mostly American, a few in New Zealand, Australia, 

 Malaya and Eastern Asia. 



