630 ERICACEAE (HEATH FAMILY) 



stigma naked. Dark and rich woods, nearly throughout the continent. June- 

 Aug. (Mex., Asia.) 



2. HYPOPITYS [Dill.] Gray. Plant commonly fragrant; flowers several 

 in a scaly raceme, the terminal one usually b-merous, the rest 3-4-merous 

 bract-like sepals mostly as many as the petals ; anthers opening by a con- 

 tinuous line into 2 very unequal valves; style longer than the ovary, 

 hollow. 



2. M. Hyp6pitys L. (PINESAP, FALSE BEECH DROPS.) Somewhat pubes- 

 cent or downy, tawny, whitish, or red, 1-4 dm. high ; pod globular or ovoid ; 

 stigma ciliate. (Hypopitys Small ; H. lanuginosa Nutt. ; H. americana Small.) 

 Rich woods. June-Oct. (Mex., Eurasia.) 



6. PTER6SPORA Nutt. PINE DROPS 



Calyx 5-parted. Corolla ovate, urn-shaped, persistent. Stamens 10. Style 

 short ; stigma 5-lobed. Capsule globose, depressed, 5-lobed, 5-celled, loculici- 

 dal, 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-brown 

 clammy-pubescent root-parasitic herb, 3-9 dm. high ; the wand-like stem fur- 

 nished towards the base with scattered lanceolate scales in place of leaves, 

 above bearing many nodding white flowers, in a long bracted raceme. (Name 

 from irrepbv, a wing, and ffiropd, seed, alluding to the singular wing borne by 

 the seeds.) 



1. P. andromedda Nutt. Hard clay soil, parasitic apparently on the roots 

 of pines, P. E. I. to B. C., s. to Pa., Mich., and in the mts. to Mex.; rare. 

 June-Aug. 



7. MONOTR6PSIS Schwein. SWEET PINESAP 



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

 persistent, rather fleshy, slightly 5-gibbous at the base. Stamens 10 ; anthers 

 much shorter than the filaments, fixed near the summit, awnless, with two sac- 

 shaped cells. Capsule ovoid, 5-celled, with a short and thick style, and a large 

 5-angular stigma. Seeds innumerable. A low and smooth brownish plant, 

 0.5-1 dm. high, with the aspect of Monotropa, scaly-brae ted, the flowers several 

 in a terminal spike, at first nodding, flesh-color, with the fragrance of violets. 

 (Name from Monotropa and 6\j/is, appearance, from resemblance to that genus.) 



SCHWEINITZIA Ell. 



1. M. odorata Ell. In woods, Md. to N. C. Apr.,' May. 



8. LEDUM L. LABRADOR TEA 



Calyx 5-toothed, very small. Corolla of 5 obovate and spreading petals. 

 Capsule 5-celled, splitting from the base upward, many-seeded ; placentae borne 

 on the summit of the columella. Low shrubs, with the alternate entire leaves 

 clothed with rusty wool underneath, persistent, the margins revolute ; herbage 

 fragrant when bruised. Flowers white, small, in terminal umbel-like clusters. 

 (Arjdov, the ancient Greek name of the Cistus.} 



1. L. groenlandicum Oeder. Erect, 1 m. or less high ; leaves oblong or 

 linear-oblong, 2-5 cm. long, very obtuse ; stamens 5-7 ; capsule slender, sub- 

 cylindric, acutish. (L. latifolium Ait.) Bogs, damp thickets, and mountain- 

 slopes, common northw., s. to Ct., N. J., Pa., Mich., Wise., Minn., etc. May, 

 June, rarely to Aug. (Greenl.) 



2. L. palustre L. Lower, at most 6 dm. high ; leaves narrowly linear, 1-3 

 cm. long; stamens mostly 7-11; capsule ellipsoid-ovoid. Arctic regions, s. 

 to Nfd. 



