ERICACE^ 719 



Flowers in terminal clusters ; corolla 5-clet ; inflorescence-buds conical, covered 

 with closely imbricated scales ; leaves revolute on the margins. 



2. Rhododendron. 

 Flowers in axillary clusters ; corolla saucer-shaped, with a short narrow tube and 

 10 pouches below the short limb, the anthers in the pouches in the bud ; inflo- 

 rescence-buds elongated, covered with loosely imbricated scales ; leaves flat. 



3. Kalmia. 

 Capsule loculicidal, the valves in opening bearing the partitions and separating from 

 the persistent placentiferous axis ; calyx-lobes valvate in the bud. 



Capsule ovoid-pyramidal; flowers in terminal panicles of secund racemes ;, anther- 

 cells opening longitudinally from the apex to the middle ; leaves deciduous. 



4. Oxydendrum. 

 Capsule oblong ; flowers in axillary fascicles ; anthers opening below the apex by 

 2 oblong pores ; leaves persistent. 5. Xylosma. 



Fruit drupaceous ; flowers in terminal panicles ; anthers bearing a pair of reflexed awns 

 on the back, each cell opening at the apex anteriorally by a terminal pore ; leaves per- 

 sistent. 6. Arbutus. 

 Ovary inferior ; fruit baccate ; flowers axillary, racemose or solitary ; anther-cells termi- 

 nating in tubular appendages and opening by terminal pores. 7. Vaccinium. 



1. ELLIOTTIA, Ell. 



A glabrous tree or shrub, with slender terete branchlets, scaly buds, and fibrous 

 roots. Leaves petiolate, oblong or obloug-obovate, acute at the ends or occasionally 

 rounded at the apex, entire, membranaceous, dark green and glabrous above, pale 

 and villose below, particularly on the thin yellow midribs and obscure forked veins, 

 deciduous; their petioles slender and flattened, with an abruptly enlarged base nearly 

 covering the small axillary buds. Flowers perfect, on slender elongated pedicels, 

 in erect terminal elongated racemose panicles, with minute acute scarious caducous 

 bracts and bractlets; calyx short, tubular, puberulous, dark red-brown, 4-toothed, 

 the broad apiculate teeth erose on the margins and imbricated in the bud; petals 4, 

 imbricated in the bud, spatulate-linear, sessile; stamens 8, hypogynous, shorter than 

 the petals; filaments broad, flattened; anthers oblong-ovate, the cells callous-mu- 

 cronate, free at the apex of the spreading lobes, opening from above downward; 

 disk much thickened, fleshy; ovary sessile, subglobose, 4-lobed, 4-celled, concave at 

 the apex; style elongated, slender, gradually enlarged and club-shaped above and 

 incurved at the apex; stigma 3-o-lobed, smaller than the thickened end of the style; 

 ovules numerous in each cell, attached on the inner angle of a tunaid placenta, 

 ascending, anatropous. Fruit unknown. 



Elliottia with a single species is confined to the southern United States. 



The genus is named in honor of Stephen Elliott (1771-1830), the distinguished 

 botanist of South Carolina. 



1. Elliottia racemosa, Ell. 



Leaves 3'-4' long, I'-l^ wide; their petioles y-^' in length. Flovrers about 

 i' long, opening from the middle to the end of June, in clusters 7'-10' in length. 



A tree, 15-20 high, with a trunk 4'-5' in diameter, short ascending branches 

 forming a pyramidal head, and erect branchlets light red-brown and pilose when 

 they first appear, bright orange-brown, lustrous, and nearly glabrous during their 

 first winter, and roughened by slightly raised oblong-obovate leaf-scars with con- 

 spicuous central fibro-vascular bundle-scars, becoming light brown slightly tinged 



