628 ORCHIDACE HABENARIA 
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 bigh: 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; sepals, 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 along 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 saitaleatee 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 R. 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 slightly 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, 
