ERICACEAE. (heath FAMILY.) 289 



slender, 3-cleft. Capsule S-celled, S-valved, many-seeded. — Shrubs or small 

 trees. Leaves alternate, oblong or obovate, serrate, deciduous. Flowers 

 white, in terminal racemes. Stamens and style exserted. 



1. C. alnifolia, L. Shrubby; branches and racemes tomentose ; leaves 

 short-petioled, obovate or wedge-oblong, acute, smooth on both sides ; racemes 

 simple or panicled; style and filaments smooth; bracts partly persistent. (C. 

 pauiculata, Pursh.) — Varies, with the leaves hoary beneath, rough above 

 (C. tomentosa. Lam.), or on both sides (C. scabra, Pers.) ; style hairy. — 

 Swamps. July. — Shrub 4° - 8° high. Leaves 2' - 3' long. Flowers 

 fragrant. 



2. C. acuminata, Michx. Arborescent ; branches and racemes white- 

 tomentose ; leaves thin, smooth, ovate or ovate-lanceolate, acuminate, on 

 slender petioles ; racemes solitary ; style smootli ; filaments hairy. — Moun- 

 tains of North Carolina. July - August. Leaves 3' - 4' long. 



17. PYROLA, L. 



Calyx 5-parted. Petals 5, concave, deciduous. Stamens 10: anthers some- 

 what 4-celled, opening by terminal pores, inverted in the bud. Style long, 

 mostly declined : stigma 5-lobed or 5-rayed. Capsule globose, 5-celled, .5- 

 valved, opening through the cells from the base upward ; the sutures pubes- 

 cent. Seeds very minute, numerous. — Smooth perennial herbs, with creeping 

 roots, and evergreen radical leaves. Flowers commonly white, nodding, in a 

 simple raceme at the summit of the nearly naked scape. 



1. P. rotundifolia, L. Leaves orbicular, tliick, nearly entire, shorter 

 than the petioles ; racemes many-flowered ; stigma 5-crenate. — Drv w-oods 

 in the mountains, Georgia, and northward. June -July. — Scape 1° high. 



2. P. elliptica, Nutt. Leaves oblong-oval, thin, denticulate, longer than 

 their petiole ; racemes few - many-flowered ; cdlyx. lobes ovate, acute. — Moun- 

 tains of Tennessee. July. 



18. CHIMAPHILA, Pursh. Prince's Pine. 



Calyx 5 cleft. Petals 5, spreading, deciduous. Stamens 10, the filaments 

 dilated in the middle : anthers somewhat 4-celled, opening by terminal pores, 

 inverted in the bud. Stigma broad, ."i-crenate, nearly sessile. Capsule globose, 

 opening from the apex downward ; the sutures naked. — Low creeping ever- 

 greens, with erect branches, lanceolate serrate whorled leaves, and whitish 

 umbellate nodding flowers on a long peduncle. 



1. C. umbellata, Xutt. Leaves wedge-lanceolate, narrowed at the base, 

 serrate above the middle, not spotted ; umbels 4 - 7-flowered ; filaments smooth. 

 — Open woods. North Carolina, and northward. June. — Branches 6' - 1 

 high. Leaves glossy. 



2. C. maculata, Pursh. Leaves lanceolate, broad at the base, toothed- 

 serrate throughuut, blotched with white; umbels 2 - .5-flowered ; filaments 

 villous below. — Dry open woods in the middle and upper districts. June. — 

 Smaller than the preceding. 



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