6^8 ORCHIDACE^: HABENARU 



little shorter than the flowers : sepals and petals equal, about 2 lines long : 

 sepals oblong, obtuse : petals ligulate and fleshy, obscurely 3-nerved ; the 

 lip similar, with a filiform spur equalling or exceeding the ovary, 3-5 lines 

 long: pollen-masses large, half a line long: beak of the stigma prominent, 

 broad and rounded : capsule oblong, nearly sessile, 3-4 lines long. In dry 

 open forests, California to Brit. Columbia. 



H. Unalaskensis Watson Proc. Am. Acad. xii, 277. Stem usually 

 slender, 10-20 inches high: leaves narrowly lanceolate to linear, thin, 2-6 

 inches long, often attenuate below : bracts ovate, acutish or rarely acumin- 

 ate, not exceeding the ovary : spikes 4-6 inches long, rather loose : flowers 

 unpleasantly fragrant ; sepa'ls, petals aud lip nearly equal, about a line long, 

 at first erect, becoming nodding by the curving of the ovary ; sepals oblong, 

 obtuse: petals thicker, lanceolate, acute: lip oblong, obtuse: spur clavate, 

 shorter than the ovary : capsule oblong, sessile or nearly so, 3 lines long. 

 On dry wooded hills, California to Unalaska. 



* * Stem stouter, from a fusiform tuber, often tall, leafy through- 

 out : sepals 3-nerved, the lateral ones oblique at base, the upper one 

 broader : petals thin : lip fleshy, several-nerved. 



*- Spur elongated, much longer than the sepals. 



H. leucostachys Watson Bot. Cal. ii, 134. Stem stout 1-6 feet high 

 bearing a many-flowered dense or open spike of rather large pure white 

 flowers: leaves lanceolate to linear, 2-18 inches long diminishing upward: 

 bracts linear-subulate, acuminate longer than the ovary : lateral sepals 

 oblong, the upper ovate-oblong, 2-3 lines long: petals lanceolate and sub- 

 falcate, oblique at base, more or less connivent with the base of the sepals : 

 lip 3-4 lines long, rhombic-lanceolate : spur narrow, 4-6 lines long : beak of 

 the stigma very prominent, ovate, more than half the length of the con- 

 nective: glands linear-oblong, vertical: capsule oblong, sessile, 6-9 lines 

 long. In marshes, California to Alaska and Idaho. 



H. dilatata Hook. Exot. Fl. ii, t. 95. Stem rather slender, 1-2 feet 

 high : leaves lanceolate, 3-12 inches long: spikes 2-10 inches long, loosely 

 flowered: bracts lanceolate, acuminate, the lower longer than the flowers, 

 the upper shorter than the ovary: flowers white: sepals ovate, obtuse, 

 nearly 3 lines long: lip entire, dilated or obtusely 3-lobed at base. 4-5 lines 

 long, about equalling the blunt incurved spur : stigma with a trowel-shaped 

 beak between the bases of the anther-cells : capsule sessile or nearly so. 

 In marshes and wet woods, Oregon to Alaska and across the Continent. 



H. aggregata. Stem rather slender, 1-2 feet high, growing in dense 

 tufts : leaves linear to linear-lanceolate, acute or acuminate, 4-10 inches 

 long, reduced to sheaths below: bracts linear-lanceolate, acuminate, 6 

 lines long, about equalling the ovaries : flowers 10-30, in alone loose spike, 

 greenish-white: lateral sepals ovate, acuminate, about 3 lines long, obtuse, 

 the upper broadly ovate, obtuse, equalling the lateral ones: petals lanceo- 

 late subfalcate, obtuse, 4-5 lines long : lip linear, 6 lines long equalling the 

 slender spur and sessile ovary. In springy places along streams in the 

 Coast Mountains of southern Oregon. 



*- *- Spur short, scarcely exceeding the sepals. 



H. hyperborea B. Br. Ait. Hort. Kew. ed. 2, 193. Stem rather 

 stout, 6 inches to 3 feet high : leaves ovate to lanceolate, 1-12 inches long: 

 spike narrow, 3-8 inches long: sepals and petals ovate, obtuse, 2-3 lines 

 long, upper sepal slightl)' crenulate at the apex, lip lanceolate, entire, 

 obtuse, about 3 lines long: spur about equalling the lip, shorter than the 

 ovary, blunt slightly incurved, sometimes clavate: glands small. In bogs 

 and wet woods, Oregon to Alaska and across the Continent. 



H. gracilis Watson Proc. Am. Acad. xii, 276. Stem usually slender, 



