A small plant with a short rootstock and thick root-fibers. Stem scapose, naked, with a single obovate leaf at the base; flowers greenish yellow. Upper sepal round-ovate, erect, surrounding the broad column; lateral sepals reflexed, spreading; petals lanceolate, smaller; lip entire, linear-lanceolate, deflexed; spur slightly curved, shorter than the ovary. Beak of stigma not appendaged. Anther-sacs widely diverging, wholly adnate, arcuate; glands small, their faces turned inward. Pod obovoid. [Name diminutive of Lysias.] • A monotypic genus of North America and northern Norway.

1. Lysiella Obtusata (Pursh) Richards. Small Northern Bog Orchis

Fig. 1372

Orchis obtusata Pursh, Fl. Am. Sept. 588. 1814.

H. obtusata Richards, App. Frank. Journ. 750. 1823.

Lysiella obtusata Rydb. in Britton, Man. 295. 1901.

Scape slender, naked, 4'-10' high, 4-angled. Leaf solitary, basal obovate, 2.'-5' long, 5"-12" wide; spike 1'-2 1/2' long, loose flowers greenish yellow, about 3" long; upper sepal erect, round-ovate, green with whitish margins; lateral sepals spreading, oblong, obtuse; petals shorter, dilated or obtusely 2-lobed at the base, connate with the base of the column; lip entire, lanceolate, obtuse, deflexed, about 3" long; spur about as long as the lip, slender, nearly straight, blunt; anther-sacs widely divergent below, glands small, rather thick.

In bogs, New Brunswick to British Columbia, Maine, New York and Colorado. Arctic Norway. Dwarf or one-leaved orchis. July-Sept.

1 Lysiella Obtusata Pursh Richards Small Northern  1372