ERICACEJE. (heath FAMILY.) 261 



disk-shaped, the border 5-crenate. Pod, &c. as in Pyrola, but splitting from the 

 apex downwards, the edges of the valves not woolly. — Low, nearly herbaceous 

 plants, with long running underground shoots, and evergreen thick and shining 

 leaves somewhat whorled or scattered along the short ascending stems : the 

 fragrant (white or purplish) flowers corymbed or umbelled on a terminal pe- 

 duncle. (Name from x"/*") winter, and 0(Xea>, to htie, iu allusion to one of the 

 popular names, viz. Wintergreen.) 



1. C niiibellih.ta, Nutt. (Pbinoe's Pine. Pipsissewa.) Leaves 

 wedger-lanceolate, acute at the base, sharply serrate, not spatted; peduncles 4-7t 

 flowered. — Dry woods; common. June. — Plant 4'-10' high, leafy: petals 

 flesh-color : anthers violet. (Eu.) 



2. C« macnlata, Fursh. (Spotted Wintebobeen.) Leaves ovate- 

 lanceolate, obtuse at the base, remotely toothed, the upper surface variegated with 

 white ; peduncles 1 - 5-flowered. — Dry woods, most common in the Middle 

 States. June, July. — Plant 3' - 6' high. 



Suborder IV. MONOTROPEJS. The Indian-Pipe Family. 



25. PTEROSPORA, Nutt. Pine-dkops. 



Calyx 5-parted. Corolla ovate, urn-shaped, 5-toothed, persistent. Stamens 

 10 : anthers 2-celled, awned on the back, opening lengthwise. Style short : 

 stigma 5-lobed. Pod globose, depressed, 5-lobed, 5-celled, loculicidal, but the 

 valves cohering with the columella. Seeds very numerous, ovoid, tapering to 

 each end, the apex expanded into a broad reticulated wing many times larger 

 tlian the body of the seed. — A stout and simple purplish-brown clammy-pubes- 

 cent herb (l°-2°high); the wand-like stem furnished towards the base with 

 scattered lanceolate scales in place of leaves, above bearing many nodding 

 (white) flowers, like those of Andromeda, in a long bracted raceme. (Name 

 from wrepov, a wing, and airopa, seed, alluding to the singular wing borne by 

 the seeds.) 



1. p. Aodroinedea, Nutt. — Hard clay soil, parasitic on the roots 

 apparently of pines, from Vermont, Peekskill and Albany, N. Y., and N. Penn- 

 sylvania northward and westward : rare. 



26. SCH"WEINiTZIA, BU. Sweet Pine-sap. 



Calyx of 5 oblong-lanceolate acute scale-like sepals, erect, persistent. Corolla 

 persistent, bell-shaped, rather fleshy, 5-lobed, slightly 5-gibbous at the base. 

 SttimenslO: anthers much shorter than the filaments, fixed near the summit, 

 awnless ; the 2 sac-shaped colls opening at the top. Pod ovoid, 5-celled, with 

 a short and thick style, and a large 5-angular stigma. Seeds innumerable. — A 

 low 'and smooth brownish plant, 3' - 4' high, with the aspect of Monotropa, 

 scaly-bracted, the flowers several in a terminal spike, at first nodding, flcsh-color, 

 exhaling the fragrance of violets. (Named for the late L. D. von Schweinitz.) 



1. S. odorata, Ell. — Woods, parasitic on the roots of herbs, Maryland 

 and southward : rare. April. 



