70 
POGONIA OPHIOGLOSSOiDES. 
Adder' s-tongue Pogonia. 
GYNANDRIA MONANDRIA— Nat. Ord. ORCHIDEJE. 
Div. Anth. terminalis inserta, persistens. Massce pollinis vel pulvereoe vel e cor- 
pusculis ahgulatis : bast vel infra apicem offixce. — Br. 
Gen. Cu\R.—~LabeUum sessile, cucullatum intus cristatum. Petala 5, dis- 
tincta, eglandulosa. Pollen farinaceum. — Br. in Hort. Kew. 
Pogonia ophioglossoides ; radice fibrosa, scapi folio bracteaque elliptico- 
lanceolatis, petalis exterioribus oblongo-ovatis. 
P. ophioglossoides, Bot. Reg. 1. 148 — Nutt. Gen. of N.Am. PI. v. ii. p. 591. 
Arethusa ophioglossoides. Linn. Sp. PI. p. 1346. — Pursh, N. Am. Fl. v. ii. 
p. 591. 
Root composed of several thickish, fleshy, slightly downy fibres, some oi 
which are branching. Scape nearly a foot in height, erect, slender, terete 
at the base, the upper part compressed, triangiUar. Near the middle of 
the scape is a single, almost erect, elliptico-lanceolate, faintly-nerved, ra^ 
ther thick, coriaceo-camose leaf, of a yelloWish-^een color, sheathing at 
the base. Bractea single, similar in every respect to the leaf, but much 
smaller. 
FUmer single, terminal, large. Germen linear, oblong, triquetrous, straight, 
erect ; the rest of the flower nodding. Petals all concave, and directed 
forward, but not connivent, distinct to the very base, rose-colored : the 
three outermost ones oblongo-ovate, equal ; the two innermost larger^ 
ovato-elliptical. Lip longer than the petals, narrow, of a delicate pale rose- 
color, with oblique darker streaks, its base entire, and embracing with 
its involute margins the lower part of the column; its upper half dilated, 
concave, deeply toothed at the margin, the apex entire, waved : the whole 
length of the centre of the lip is beset with elevated papillae, purplish to- 
wards the apex, and glabrous, the rest yellow and downy. Column of 
fructification purplish, elongate, clavate, convex at thie back, plane in th6 
front, where, towards the upper extremity, is situated the concave siib- 
quadrate stigma ; its upper margins slightly lacerated. Anther terminal, 
convex at the top, moveable, but fixed by its back between two teeth on 
the hind part of the column, with its lower part inserted into a hollow 
on the top of the column, 2-celled ; each cell filled, as it appears, with an 
uniform farinaceous pollen-mass. 
VOL. I 
