342 ORCHIDACE^E. (ORCHIS FAMILY.) 



* » Spur none, the lateral sepals and base of the column strongly gibbous over the 



top of the ovary : lip entire : flowers larger, purple and veined, not spotted. 

 3. C. Striata, Lindl. Scape stout, a foot or two high, many-flowered: 

 flowers often 6 or 7 lines long ; lip fleshy, somewhat narrowed below, reflexed 

 above the base and bearing the prominent laminae upon the arch. — C. Macrcei, 

 Gray, Manual, 510. From Washington and Oregon eastward to the Great 

 Lakes. 



3. APLECTRUM, Torr Putty-root. 



Lip 3-ridged. Column nearly straight, not broader at base. Scape lateral 

 from a thick globose solid bulb upon a slender horizontal rootstock, the bulb 

 bearing at summit a large petioled plaited leaf. Flowers rather large, soon 

 deflexed. 



1. A. hieniale, Torr. Scape with 3 or 4 greenish sheaths: the radical 

 leaf ovate-oblong to broadly oblanceolate, 4 to 8 inches long, many-nerved, 

 continuing through the winter: sepals and petals greenish-brown, 5-nerved ; 

 lip whitish or somewhat spotted, attenuate into a distinct claw : ovary attenu- 

 ate into a slender pedicel. — Along our eastern border and eastward to the 

 Atlantic ; found also in Oregon. 



4. HABENARIA, Willd. 



Sepals and petals nearly alike, convergent or the lower sepals spreading. 

 Lip without ridges or callosities. Column very short. Anther-cells parallel 

 or divergent at base. — Stems from fleshy-fibrous or tuberous roots : flowers 

 greenish or white, not showy in our species. 



* Stems slender, bracteate, with 2 or 3 leaves at base: sepals 1-nerved: spur 



longer than the lip. 



1. H. Unalaschensis, Watson. Spike of flowers elongated and rather 

 open: leaves narrowly lanceolate to linear: bracts ovate, not exceeding the 

 ovary : sepals, petals, and lip about a line long, the narrow or somewhat cla- 

 vate spur scarcely or sometimes nearly twice longer. — H. feet id a, Watson, 

 Bot. King Exped. 341. In the Wasatch, Uinta, and Teton Mountains, and 

 along the Pacific coast to Oonalaska. 



* * Sepals 3-nerved : spur not longer than the entire lip. 



+- Stem leafy. 



2. H. hyperborea, R. Br. Leaves lanceolate, erect : spike dense : flowers 

 greenish ; lip and petals lanceolate, somewhat equal, the latter spreading from 

 the base : glands orbicular : stalk of the pollen-masses very slender and weak. 

 — Colorado and northward, thence across the continent. 



3. H. dilatata, Gray. Like the last, but more slender and with narrower 

 commonly linear leaves : flowers white ; lip lanceolate from a rhomboidal-dilated 

 base, its base with the bases of other petals and sepals erect-connivent : glands 

 approximate, large and strap-shaped, vertical, nearly as long as the pollen- 

 mass and its short fiat stalk together. — From Colorado northward and 

 eastward. 



