ERICACEAE. (HEATH FAMILY.) 289 



sleiuler, 3-cleft. Capsule 3-celled, 3-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; brandies and racemes tomeutose ; leaves 

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

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

 panicuhita, I'ura/i.) Varies, with the leaves hoary beneath, rough above 

 (C. tomentosa, Lam.}, or ou 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 smooth ; 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, 

 mostlv 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 verv minute, numerous. Smooth perennial herbs, with creeping 

 routs, 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, thick, nearly entire, shorter 

 than the petioles; racemes many-flowered; stigma 5-crenate. Dry woods 

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



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

 their petiole ; racemes few - many-Howered ; calyx lobes ovate, acute. Moun- 

 tains of Tennessee. July. 



18. CHIMAPHILA, Pnrsh. 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, 5-crenate, nearly sessile. Capsule globose, 

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

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

 umbellate nodding flowers on a long peduncle. 



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

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

 Open woods, North Carolina, and northward. June. Branches 6' -10 

 high. Leaves glossy. 



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

 serrate throughout, 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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