456 Lxxxii. EEiCACEJ!. (C. B. Clarke.) [GauUheria. 



Okdek lxxxii. ERXCACES:. (By 0. B. Clarke.) 



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

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

 bracteate and often S-bracteolate. Flowers regular, or in Rhododeridron some- 

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

 much adnate to the ovary), 5- (rarely 4-6-)fid 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 JDiptycosia sometimes epigynous) ; filaments free ; 

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

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

 spurred. Ovary 5- (or 4-16-)celled ; 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 GauUheria 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, Andromedeee. Corolla gamopetalous. Capsule loculicidally 

 5-valved. 



* Calyx in fruit sueculent, gwrreunding the capsule. 



Anthers with 2 horns on their back I . Gaultheria. 



Anthers without horns on their back 2. Diplicosia. 



* Calyx in fruit unaltered, 



t 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. Enkiamthus. 



t Flowers racemed. 



linear-oblong, not margined 5. Pieris. 



orbicular-compressed margined 4. Leucothoe. 



Tribe II. Bliodorese. Corolla gamopetalous. Capsule septicidal. 



Anthers opening by longitudinal slits 7. Diplarche. 



Anthers opening by terminal pores 8. Ehododendron. 



Tribe III. Fyroleee. Co/roUa polypetalous. Herbs. 

 Flowers racemose. Capsule loeulicidal, dehiscing from the base . 9. Ptboia. 



1. GAUI.TKERZA, Linn. 



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

 Flowers 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-homed; in the di- 

 morphic flowers the stamens are small with simple anthers. Ovary 5-ceIled • 

 style cyhndric, stigma simple ; o.vules 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. 



