556 



ORCHIDACEAE. 



VOL. I. 



2. Lysias Hookeriana (A. Gray) Rydb. 



Hooker's Orchis. Fig. 1371. 

 Habenaria Hookeriana A. Gray, Ann. Lye. N. Y. 3 : 229. 



1836. 

 Habenaria orbiculata Goldie, Edinb. Phil. Journ. 6: 331. 



1822. Not Orchis orbiculata Pursh, 1814. 

 Habenaria Hookeri var. oblongifolia Paine, Cat. PI. 



Oneida, 83. 1865. 

 L. Hookeriana Rydb. in Britton, Man. 295. 1891. 



Scape S'-is' high, not bracted. Leaves 2, basal, 

 fleshy, shining, spreading or ascending, oval, orbic- 

 ular or obovate, 3 '-54' long; raceme rather loosely 

 many-flowered, 4-8' long; bracts acute, about as long 

 as the yellowish green flowers ; lateral sepals green- 

 ish, lanceolate, acute, spreading, about 4" long; petals 

 narrowly linear or awl-shaped ; lip linear-lanceolate, 

 acute, 4"-s" long; anther-sacs widely diverging 

 below; glands small, their faces turned inward; spur 

 slender, acute, 8" long or more, as long as the ovary 

 or considerably longer. 



In woods, Nova Scotia to Minnesota, New Jersey, 

 Pennsylvania and Iowa. Small two-leaved orchis. 

 Solomon's-seal. June-Sept. 



ii. LYSIELLA Rydb. in Britton, Man. 295. 1901. 



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. 



i. 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'-io' high, 4-angled. Leaf 

 solitary, basal obovate, 2'-$' long, 5"-i2" wide; spike 

 i'-2i' 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. 



12. BLEPHARIGLOTTIS Raf. Fl. Tell. 2 : 38. 1836. 

 Plants with tall and leafy stems and fleshy or tuberous roots. Flowers several or 

 numerous in an open spike with f oliaceous bracts ; corolla white, yellow or purple ; sepals 

 broad and spreading or reflexed ; lip variously fringed or 3-parted and cut-toothed ; spur 

 longer than the lip. Anther-sacs widely separated and usually diverging, their narrow beak- 

 like bases supported by the arms of 'the stigma, strongly projecting forward and upward; 

 gland naked ; pollinia granular. [Greek, fringed throat.] 



About 10 species of North America. Type species: Blephariglottis albiflora Raf. 

 Lip not 3-parted, pectinately fringed. 



Spur half as long as the ovary ; flowers yellow. i. B. cristata. 



Spur longer than the ovary. 



Flowers bright yellow. 2. B. ciliaris. 



Flowers white. 3. B. blephariglottis. 



Lip 3-parted. 



Segments of the lip deeply fringed. 



Segments narrow ; fringe of a few threads. 4. B. lacera. 



Segments broadly fan-shaped ; fringe copious. 



Segments fringed to the middle or deeper ; flowers white. 5. B. leucophaea. 



