ERICACEAE. (heath FAMILY,) 287 



Stjboktjer I. VACCIIVIE^E. Whortleberry Family. 



Calyx-tube adherent to the ovary, which forms an edible berry or berry- 

 like fruit, crowned with the short calyx-teeth. Anthers 2-parted. — Shrubs 

 or somewhat woody plants, with scaly buds. 



1. Gayluggacla. Ovary S-lO-celled, with a single ovule in each cell, rruit a berried 



drupe with 8 of 10 small seed-like nutlets. 



2. Vacclnium. Berry 4 - 6-celled (or imperfectly 8- 10-celled by false partitions), many- 



seeded. Auther-cells tapering upward into a tube. 



3. Chlogeneg. Berry 4-oelled, many-seeded, its summit free. Anther'cells not prolonged 



into a tube, but each 2-pointed. 



Suborder II. £KICIN£.S:. Proper Heath Family. 



Calyx free from the ovary. Corolla monopetalous, or sometimes poly- 

 petalous, hypogynous. — Shrubs or small trees. 



Tribe I. ARB17TEl.Xi. Fruit Indehiscent, a berry or drupe. Corolla deciduous. 



4. Arctoslapliylog. Corolla urn-shaped. Drupe berry-like, 6 - 10-seeded. 



Tribe II. ANDROMKDE^. Fruit a loculiddal pod. Corolla deciduous. 



« Anthers upright in the bud. Corolla monopetalous. 



'•*- Anther-cells opening through their whole length ; not appendaged. 



6.. Eplgcea* Corolla salver-shaped. Calyx of 6 separate dry and pointed sepals. 



•t- -t- Anther-cells opening only at the top. Corolla not salver-shaped. 



■M- Calyx becomihg enlarged and berry-like in fruit. 



6. Gaultberla. Calyx 6-clett, in fruit enclosing the small pod. Anthers 4-awned at the top. 



++ ++ €alyx dry, not becoming fleshy after flowering. 



7. Lencotho^. Calyx imbricated in the bud. Corolla cylindraceons, 6-tootbed. Pod 



depressed, 6-lobed, the valves entire. 



8. Casaandra. Calyx Imbricated hi the bud. Corolla cylindraceons, 6-toothed. Pod 



splitting when ripe into an outer and loner layer, the inner of 10 valves. 

 8. Casaiope. Calyx Imbricated. Corolla broadly campanulate, deeply 4-6-cleft. Pod 



globular-ovold, 4- 5-valved, the valves 2-clefu 

 10. Aiidromrda. Calyx valvate and very-early -open in the bud. Pod globular. Seeds 



mostly hanging on the central placenta. 

 .11. Oxydeiidrum. Calyx valvate and opening early in the bud. Pod oblong-pyramidal. 

 Seeds all ascending. 



« * Anthers turned over outwardly in the bud. Corolla of 5 separate petals. 



12. Clethra. Sepals B. Stamens 10: anther-cells opening by a terminal hole or chmk. 



Style 3-oleft at the apex. Pod 3-valved. 

 Tribe III. ERICBiE. Corolla persistent, becoming scarlous after flowering. 



13. Calluna. Corolla bell-shaped, 4-parted Pod opening septloidally. 



Tribe IV. RHODORE.*;. Fruit a septicidal pod. Corolla deciduous. 

 » Anther-cells opening by a hole or chink at the top. 

 ..- Flowers not from scaly bu'ls i the bracts leaf-like or coriaceous. 

 ■14. Phyllrtdoce. Corolla ovate or urn-shaped. Leaves narrow and heath-like. 



16. Kalmla. Corolla broadly bell-shaped or wheel-shaped, with 10 pouches receiving as 



many anthers. Leaves oblong or linear. 



..- ..- Flowers developed from large scaly buds, the scales or bracts caducous. 

 16 nienzlesla. Corolla globular-bell-shaped, 4-toothea. Stamens 8. Leaves deciduous, 



17. Azalea. CoroUa open fmmel-form, 6-lobed. Stamens 6. Leaves deciduous. 



