ERICACEAE. (iIEATII FAMILY.) 2G7 



vorv minute, numerous. — Smooth perennial herbs, with creeping roots, and 

 evergreen radical leave-. Flowers commonly white, nodding, in a simple raceme 

 at the summit of the nearly naked scape. 



I. P. rotundifolia, L. Leaves orbicular, thick, nearly entire, shorter 

 than the petioles ; racemes many-flowered ; stigma 5-erenate. — Dry woods in 

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



16. 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 hy terminal pores, 

 inverted in the hud. Stigma hroad, 5-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 long peduncles. 



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'- 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 vil- 

 lous below. — Dry open woods in the middle and upper districts, Mississippi, 

 and northward. June. — Smaller than the preceding. 



17. SHORTIA, Gray. 



Calyx 5-scpalou-. scale-like, imbricated in the bud. Capsule shorter than the 

 calyx, nearly L'lobose, 3-celled, loculicidally 3-valvcd. Placenta large, central. 

 Seeds small, numerous. Embryo terete, straight, shorter than the albumen. 

 Style filiform, somewhat persistent. Corolla and stamens unknown. — A 

 smooth perennial nearly stemless herb. Leaves roundish, subcordate, eremite. 

 serrate, long-petioled. Scape scaly-bracted towards the summit, 1 -flowered. 



1. S. galacifolia, Gray. — High mountains of Carolina, Michauz. 



Suborder IV. ITIO.\OTROPE^E. Tiik Indian-Pipe Family. 



18. SCHWEINITZIA, Ell. 



Calyx of 5 sepals, persistent. Corolla persistent, bell-shaped, 5-lobcd. Sta- 

 in «s 10: anthers shorter than the filaments, fixed near the apex, awnlcss ; the 

 cells opening at the apex. Style short and thick : stigma large, 5-angled. 

 Capsule ovoid, 5-celled. Seeds very numerous. — Stem low (3'- 4'), smooth, 

 brownish, scaly. Spike several-flowered. Flowers flesh-colored, odorous. 



I. S. odorata, EH. — Shady wood-, North Carolina, and northward, 

 rare. April. — Parasitic on the roots of herbs. Flowers nodding. 



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