GYNANDRIA MONANBftlA. 
1 — 2 floro; foliis ova- 
li-lanceolatis; petalis 
subaequalibus, labello 
fimbriato. 
1 — 2 flowered; leaves 
oval-lanceolate; petals 
nearly equal; lip fim- 
briate. 
Nutt. 2. p. 192. 
Arethusa Ophioglossoides, Sp. pi. 3. p. 80. Mich. 2. p. 159. Pursh, 
2. p. 590. 
Root perennial. Stem about twelve inches high, terete, glabrous, gene* 
rally bearing two leaves and one terminal flower. Leaves alternate, one 
near the middle, the other at the summit of the stem, lanceolate, acute, 
nerved, sessile, and semiamplexicaule. Perianth five leaved, purple, ap- 
proaching to rose colour. Petals distinct, nearly of equal length, somewhat 
connivent, oblong, the uppermost widest. Labellum scarcely longer than 
the petals, winged, the centre thickened with elevated crested ridges. Co- 
lumn much shorter than the lip, thick, solid. Anthers operculate, contained 
in a small depression at the summit. 
I have specimens with the leaves narrow lanceolate, very acute; and 
leaves oval-lanceolate, scarcely acute, with the stem shorter and flowers 
larger. The first from the low country of Carolina and Georgia, the se- 
cond from the upper districts. 
Grows in damp soils. 
Flowers April — May. 
2. Divaricata. 
P. radice fibrosa; 
scapo remote bifoliato, 
unifloro; foliis oblon- 
go-lanceolatis; petalis 
exterioribus longo-lin- 
earibus, patulis; label- 
lo subtrilobo, crenula- 
to. 
Root fibrous; scape 
1-flowered, with two 
distant leaves; leaves 
oblong-lanceolate; ex- 
terior petals long, line- 
ar, expanding; lip 
somewhat three-lobed, 
crenulate. 
Nutt. 2. p. 192. 
Arethusa Divaricata, Sp. pi. 4. p. 81. Walt. p. 222. Mich. 2. p. 160. 
Roots fibrous, somewhat carnose. Stem about two feet high, bearing 
two leaves, one near the middle of the stem, the other at the summit, and 
one terminal flower. Leaves narrow lanceolate, acute, sometimes abruptly 
so, nerved, glabrous, and slightly glaucous. Perianth five-leaved, the three 
exterior linear-lanceolate, two to two and a half inches long, expanding or 
erect, dark purple; the two interior shorter, lanceolate, somewhat connivent; 
incarnate. Labellum nearly as long a§ the exterior petals, obtusely three- 
