longer than the flowers, or nearly equal to them towards the apex 
of the inflorescence. Ovary cylindrico-trigonous, with similar 
hairs. Outer perigone oblique, with glandular hairs outside the 
sepals; throat angular, small. Upper sepal ligulate-acute ; lateral 
sepals nearly equal. ‘T'epals lanceolate-acute, with unequal sides. 
Lip oblong, pandurate-acute, or ovate-acute, with two conical 
retrorse calli at the very base. Rostellum retuse, acute at both 
angles, with a linear middle process. Flowers greenish white, 
finally yellowish. 
Materials :—Sketches made at various times ; descriptions from 
living plants or fresh specimens; four herbarium specimens ; and 
the use of Dr. Warming’s rich materials, described before. 
Tab, 121.—The plant. 1, flower and bract +; 2, front view of 
flower +; 38, side view of flower, sepals cut +; 4, lp, front view + ; 
5, the same, side view +; 6, column, with anther, front view + ; 
7, column, side view +. 
This pretty species of Spiranthes has its white flowers most 
regularly arranged, spirally, on a tall upright stem. It may be 
treated as recommended for Pelexia triloba, Tab. 97. I received 
my stock of this plant from M. J. Linden, of Brussels.—W. W.S. 
