ERICACEAE 991 
FAMiL.y 4. ERICACEAE — HEgaATH FAMILY 
Shrubs, trees, or undershrubs. Leaves often persistent: blades com- 
monly leathery. Flowers typically perfect. Calyx of 4-7 distinet or 
ore 
Gynoecium of 2-7 united earpels. Fruit a capsule, or sometimes baccate 
or drupaceous.—About 60 genera and 1,100 species, widely distributed. 
Calyx not accrescent: capsule exposed. 
Capsule septicidal. Tribe I. RHODODENDREAE. 
Capsule loculicidal or marginicidal. 
nther-sacs opening by apical pores or chinks 
Se capsule loeulicidal: erect shrubs, Dos 
vil II, ANDROMEDEAE. 
Amer pe opening lengthwise: capsule margini- 
cidal: prostrate shrub with creeping branches. III. EPIGAEAE. 
Calyx accrescent, enclosing the capsule and becoming fleshy. IV. GAULTHERIEAE. 
I. RHODODENDREAE 
Corolla of distinct petals. 
Anther-sacs opening by apical pores: petals 6 or 7. 1. BEFARIA. 
Anther-sacs opening lengthwise, 
An Me sagittate: tall shrub r M membranous 
leaf-blades : petals long and narr 2. ELLIOTTIA. 
Anthers globular-didymous: low Gre aepressed shrubs 
with leathery leaf-blades: petals short and broad. 3. LEIOPHYLLUM. 
Corolla of anny united petals. 
Corolla decidedly 2-lipped, funnelfor 4. AZALEA. 
C ron ot 2-lipped, campanulate or  Totate-campanulate, 
eolate or saucer-shaped. 
Blower body. and usually leaf-buds, oe nome: 
Corolla campanulate or rotate-campan 
per ee interior: calyx- ras small, 
n prominent: leaves persistent; blades 
[2b 
c n 5. RHODODENDRON. 
Upper corolla-lobe exterior: calyx- e nute 
leaves deciduous ; blades membran 6. BILTIA. 
Corolla urceolate. 1. MENZIESIA. 
fone buds, and leaf-buds, not scaly-strobilaceous. 
persistent : corolla-lobes rounded: capsule 
ac ress : 8. KALMIA. 
eros deciduous : corolla-lobes acute: capsule 
oid. 9. KALMIELLA. 
II. sar Sr aia 
IC imbricate, at least in the 
le depressed: a anther-sacs evening by apical pores 
Capsule: wall double, the outer layer 5-valved. 10. CHAMAEDAPHNE, 
Capsule-wall single, 5-valved. 
Anthers awned: panicles terminal. 11. EuBoTRYs. 
Anthers awrless: panicles axillary. 12. LEUCOTHOE. 
Capsule elongate: anther-sacs opening by chinks above 
the middle 13. OXYDENDRON. 
bine R valve or separated in the bud. 
e awned: capsule-sutures not thicken 
ns of the anther-sacs ascending: acca: smooth. 14. ZENOBIA. 
Aw Sue wit na m ae sacs deflexed : seeds reticulate or 
00 
Flow in eat compound Dees filaments 
e straight or nearly s 15. PIERIS. 
Flowers in axillary simple r aee panicles : 
filaments much. flattened, Semi -curved. 16. AMPELOTHAMNUS. 
en Es awnless: capsule-sutures thiekened. 
crt RE corolla about twice as long 
t ca 
Style fusiform: corolla of an urceolate a leaf- 
blades with intramarginal veins: sepals per- 
sistent. 17. DESMOTHAMNUS. 
Style columnar: corolla of a cylindraceous- 
campanulate type: leaf-blades BE intra- 
marginal veins: sepals deciduou 18. NEOPIERIS. 
