EKICACEJE. (HEATH FAMILY.) 261 



digk-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 gel/id, winter, and <t\f'o>, to love, in allusion to one of the 

 popular names, viz. Wintergreen.) 



1. C. umbcllata, Nutt. (PRINCE'S PINE. PIPSISSEWA.) Leaves 

 uoedge-lanceolate, acute at the base, sharply serrate, not spotted; peduncles 4-7- 

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

 flesh-color: anthers violet. (Eu.) 



2. C. iiiaculata, Pursh. (SPOTTED WINTERGREEN.) 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. MONOTROPEJE. THE INDIAN-PIPE FAMILY. 



25. PTEROSPORA, Nutt. PINE-DROPS. 



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 

 than the body of the seed. A stout and simple purplish-browi) clammy-pubes- 

 cent herb (l-2high); 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 Trrepov, a wing, and (nropd, seed, alluding to the singular wing borne by 

 the seeds.) 



1. P. Andromeclea, 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. SCHWEINITZIA, Ell. 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. 

 Stamens 10 : anthers much shorter than the filaments, fixed near the summit 

 awnless ; the 2 sac-shaped cells 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, 

 Bcaly-bracted, the flowers several in a terminal spike, at first nodding, flesh-color, 

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



1. S. oclo r:\ta, Ell. Woods, parasitic on the ro-Hs of herbs, Maryland 

 and southward : rare. April. 



