ERICACE^. (heath FAMILY.j , 257 



1. S. perfoliata, A DC. Pubescent; stem angled, simple or branched; 

 leaves round-cordate, crenate, clasping ; the lowest narrowed at the base ; flowei-s 

 single or clustered, sessile, the lower ones apetalous. (Campanula, L.) — Fields, 

 Florida to IMississippi, and northward. May - Aug. — Stem 1° high. 



Order 76. ERICACE^. (Heath Family.) 



Shrubs or small trees, rarely herbs, with undivided alternate ex- 

 stipulate leaves, and regular flowers. — • Calyx 4 - 5-parted. Corolla 

 4-5-parted or toothed, or 4 - 5-petalous, imbricated in the bud. Sta- 

 mens free from the corolla, and as many or twice as many as its divisions : 

 anthers 2-celled, often variously awned, opening commonly by terminal 

 pores. Style 1 : stigma entire or 3-lobed. Fruit 3 - 10-celled. Seeds 

 anatropous, attached to a central placenta. Embryo small, in fleshy 

 albumen. 



Synopsis. 



Suborder I. VACCES^IEJ^. Calyx-tube adherent to the ovary. 

 Corolla superior. Anther-cells prolonged into a slender tube. Fruit a 

 berry. — Shrubs. Corolla monopetalous. 



1. GATLUSSACIA. Berry 8 - 10-ceIled ; the cells 1-seeded. Anthers awnless. 



2. VACCINIUM. Berry 4 - 5-celled, or partially 8 - 10-ceUed by false partitions, many- 



seeded. 



Suborder II. ERICINEJi^. Calyx free from the ovary. Corolla 

 hypogynous. Fruit a capsule. — Shrubs or small trees. 



Tribe I. AKDROMEDEJE. — Capsule loculicidally dehiscent. 

 « Anther-cells opening lengthwise. Corolla monopetalous. 



3. EPIGiEA. Corolla salver-shaped. Leaves cordate. 



» # Anther-cells opening at the apex. Corolla monopetalous 



4. G.A.ULTHERIA. Calyx becoming berry -like in fruit. Anthers 4-awned at the apex. 



5. LEUCOTHOE. Calyx imbricated in the bud. Valves of the capsule entire. 



6. CASS.\NDRA. Calyx imbricated in the bud. Pericarp separating into two layers ; the 



outer one 5-valved, the inner 10-valved. 



7. ANDROMEDA. Calyx valvate in the early bud. Capsule globular. Seeds pendulous. 



8. OXYDENDRDM. Calyx valvate in the bud. Capsule pyramidal. Seeds ascending. 



« * * Anthers inverted in the bud, opening by terminal pores. Corolla 5-petalou3. 



9. CLETHKA. Stamens 10. Style 3-cleft. Capsule S-celled, 3-valved. 



Tribe IL RHODORE.1C — Capsule septicidally dehiscent. 

 * Corolla monopetalous. 



10. KALMIA. Corolla wheel-shaped, with 10 cavities in which the anthers are lodged. 



11. MENZIESIA. Corolla (small) ovoid, 4 toothed Stamens 8, included. 



12. RHODODENDRON. Corolla (large) funnel or bell-sbaped, 5-lobed. Stamens 5 or 10, 



exserted. 



* * Corolla of 5 or 7 separate petals. 



13. LEIOPHYLLUM. Corolla 5petalous. Anthers opening lengthwise. 



14. BEJARIA. Corolla 7-petalous. Anthers opening at the apex. 



22* 



