EEICACE^, (heath FAMILY.) 245 



1. S. perfoU^ta, A. DC. Somewhat hairy; leaves roundish or ovate, 

 clasping by the heart-shaped base, toothed ; flowers sessile, solitary or 2-3 to- 

 gether in the axils ; the upper and later ones only with a conspicuous expanding 

 (purple-blue) corolla ; pod oblong, opening rather below the middle. — Dry hills 

 or open fields; common. May -Aug. 



Okdee 62. ERICACE-«3. (Heath Family.) 



Shrubs, sometimes herbs, with the flowers regular or nearly so : the stamens 

 as many or twice as many as the i-5-lobed or i-S-petaUed corolla, Jree 

 from but inserted with U: anAers 2-celled, commonly appendaged or open- 

 ing by terminal chinks or pores: style 1 : ovary S-Vi-ceUed. Seeds small, 

 anatropous. Embryo small, or sometimes minute, in fleshy albumen. — A 

 large family, very various in many of the characters, comprising four well- 

 marked suborders, as follows : — 



Suborder I. VACCINIE.a;. The 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. Pollen 

 confound (of 4 united grains). — Shrubs or somewhat woody plants, with 

 scaly buds. 



1. GAYLUSSACIA. OTary 8-10-celled, with a Bingle OTule in each cell. Fruit a berried 



drupe with 8-10 small nutlets. 



2. TAOOINIUM. Berry 4 - 5-celled (or imperfectly 8-10-ceUed by false partitions), many- 



seeded. Anther-cells tapering upward into a tube. 

 8. CHIOOENES. Berry 4-eelled, many-seeded, ita sununit free. Anther-ceils not prolonged 

 into a tube, but each 2-pointed. 



Suborder II. EEICINE^ai. The proper Heath Family. 



Calyx free from the ovary. Corolla monopetalous, or rarely nearly or 

 quite polypetalous, hypogynous. Pollen pf 4 united grains, — Shrubs or 

 small trees. 



TiUBE I. ARBIJTSi.^. Frait indeliiscent, a beny or drupe. Corolla deciduous. 



4. ARCTOSTAPHYLOS. Corolla urn-shaped. Prupe beny.like, 5 - lO-seeded. 



TBmB n. ANDROMKDSj.^. Fruit a pod opening loculioidaliy. Corolla deciduous. 

 * Anthers upright in the bud, tiie cells opening lengthwise. Corolla salTcr-shaped. 



5. EPIG.ffiA. Calyx of 5 separate dry and pointed sepals. Anthers not appendaged. 



* * Anthers upright in the bud, opening only at the top. CoroUa monopetalous, either glob- 

 ular, um-sliaped, beU-shaped, or cylindrical. 

 ■I- Calyx enlarged and berry-lifee in fruit. 



6. QAULTHERIA. Calyx 5-cleft, in fruit enclosing the small many-seeded pod. Anthers 4- 



awned at the top. 



■t- -^ Calyx dry, not becoming fleshy after flowering. 



7. LEUCOTHOB. Calyx imbricated in the bud. Corolla cylindraceous, 5-toothed. Pod de- 



pressed, B-lobed, the yalTcs entire. 



8. CASSANDRA Calyx imbricated. Corolla cylindraceous, 6-toothed, Pod splitting when 



ripe into an outer and inner iajar, the inner of 10 TOlTes. 

 21* 



