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 : Jlowers 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 Territory and Oregon eastward to 

 the Great Lakes. 



3. APLECTRTJM, 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. hiemale, 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 \-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. fcetida, Watson, 

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

 along the Pacific coast to Unalaska. 



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

 - Stem leaf i/. 



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 ; Up lanceolate from a rhomboid 'al-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 flat stalk together. From Colorado northward and 

 eastward. 



