Pipsissewa

Chimaphila occidentalis Rydberg, sp. nov
CUmaphila umbellata Alef. Linnaea 28: 78, in part. 1856.
Suffruticose perennial; stem branched, 1-2 dm. high, often greenish, terete; leaves in verticils of 3-8, usually broadly oblanceolate, 2-7 cm. long, sharply serrate, except towards the base, acute, dark-green and very glossy above, yellowishgreen beneath, the lateral veins almost obsolete; peduncles about 1 cm. long; inflorescence corymbose or racemose; bracts linearsubulate, deciduous; pedicels in flower ascending, rarely if at all recurved, in fruit erect; sepals broadly ovate, broader than long, obtuse, erose; petals oval, 5-6 mm. long, concave, ciliolate; dilated portion of the filaments ovate, ciliolate; anthers about 2.5 mm. long, attached slightly nearer the pore-bearing ends; stigma about half as broad as the ovary; capsule subglobose, 6-7 mm. in diameter.
Type collected in the valley of Pine Creek, near Farmington, Latah County, Idaho, June 28,
1892 Sandberg, MacDougal b' Heller 519 (herb. N. Y. Bot. Card.).
Distribution: Woods, from British Columbia to California, Colorado, and Montana.

Chimaphila mexicana (DC.) Rydberg, sp. nov
Chimaphila umbellata mexicana DC. Prodr. 7: 775. 1839.
Suffruticose perennial; stem angled, 2 dm. or more high; leaves in verticils of 4-7, oblanceolate, 3-10 cm. long, very sharply serrate, acute, dark-green above, paler and with prominent lateral veins beneath; peduncles about 1 dm. long; bracts linear-subulate, almost filiform; pedicels in anthesis more or less spreading and recurved; sepals broadly ovate, as broad as long, erose; petals rose-colored, oval, about 7 mm. long; dilated portion of the filaments obovate, ciliolate on the margins; anthers about 3 mm. long, attached at the middle; capsule glob ose-obo void, nearly 1 cm. in diameter; stigma less than half as broad as the ovary.
Type locality: Near City of Mexico. Distribution: Southern Mexico.

Chimaphila corymbosa Pursh, Fl. Am. Sept. 300. 1814
ChimaphilaumbellataW. Barton, Yeg. Mat. Med. X: 17,inpart. 1817. Not PyrolaumbeUatal,. 1753. Pyrola corymbosa Bertol. Novi Comm. Acad. Bonon. 6: 428. 1844.
Suffruticose perennial; stems 5-15 cm. high, often branched, brown or grayish, more or less angled, especially under the nodes ; leaves in verticils of 3-7 ; petioles very short ; blades narrowly oblanceolate or the earlier broader, 2.5-7 cm. long, dark-green and shining above, pale and with rather strong lateral veins beneath, entire towards the base, sharply serrate above, decidedly acute with a large terminal tooth ; pedicels in flower divergent, and somewhat recurved, in fruit becoming nearly erect; sepals broadly ovate, as broad as long, erose; petals elliptic, ciUolate, greenish-white, tinged with rose; dilated portion of the filaments obovate, ciliolate on the margins; anthers about 2 mm. long, attached at the middle; stigma two thirds as broad as the ovary; capsule obovoid-subglobose, about 6 mm. in diameter.
Type I.OCALITY: Canada.
Distribution: Woods, from Nova Scotia to Georgia and Wisconsin; Santo Domingo. I1.1.USTRATIONS : Novi Comm. Acad. Bonon. 6: pi. 20; Bot. Mag. pi. 778; Bigel. Med. Bot. pi. 21; W. Barton, Veg. Mat. Med. pi. 1; Meehan's Mo. 7: pi. 9; Mathers, Field Book 320. /. 1.