ORCHIS FAMILY 155 
4. POGONIA, Juss. 
Flowers solitary or few, always conspicuous compared to the delicate 
plant. The segments of the flower distinctly separate. Lip without 
spur, fringed along the border or deeply notched at outer extremity. 
Column bearing the stigma and anthers erect and prolonged. 
1. P. ophioglossoides, (L.) Ker. (Fig. 4, pl. 20.) Rosk Poconta. 
Stem delicate, 8 to 15 in. high, with single leaf or rarely 2 or 3 broad 
lance-shaped leaves, a leaf-like bract also at base of flower. Where single, 
the leaf is near the middle of the stem, 4 to 3 in. long, without leaf- 
stalk. A leaf sometimes also arises by a long leaf-stalk from the base 
of the stem. Petals and sepals leaning to side, elliptic or oval, 1/2 to 2/3 
in. long, beautifully shaded light purple. The lip has a conspicuous 
fringe about the border, and on the inner surface a crest or beard, it 
is longer than the petals. One of the prettiest of the orchis family in 
our region. In wet meadows and swamps. June-July. 
2. P. trianthophora, BSP. Noppinc Poconta. (Triphora triantho- 
phora, (Sw.) Rydb.). Stem 3 to 8 in. high. Leaves, broad ovate, + to % 
in. long without leaf-stalks, 3 to 8 and alternate. Flowers 1 to 5 or 
more on rather long flower stems. Lip not quite as long as the petals 
and sepals, broad and somewhat irregularly notched. Petals elliptic. 
Flowers, 1 in. long, purple, drooping when expanded. In rich woods. 
Aug.-Sept. 
3. P. divaricata, (L.) R. Br. (Fig. 3, pl. 20.) Spreapine Poconta. 
Stem 1 to 2 ft. high, with one leaf near the middle and a leaf-like bract 
just below the single flower. Leaf without leaf-stalk, clasping the stem, 
2 to 4 in. long and 4 to 4 in. wide, blunt at outer end. Petals and 
sepals long lance-shaped, the former | in. the latter 14 in. long. Lip 
broad with a prolonged middle or two short lateral lobes. Flowers rather 
dark purple. In swamps. Southern part of our region. Southern New 
Jersey, southward. July. 
4. P, verticillata, (Willd.) Nutt. Wuorrtep Poconta. (Jsotria ver- 
ticillata, (Willd.) Raf.). Stem about 1 ft. high. Leaves 5 in a whorl 
at summit of stem, broad oval. Single greenish-yellow flower, on a slen- 
der flower stem, nodding. Sepals very narrow and more than twice the 
length of the petals, which are about } in. long. The sepals are dark 
purple, the petals yellowish. Lip with a 3-lobed extremity and a crest 
of hairs in the inner side. Moist woods. May-June. 
5. P. affinis, Austin. SMALLER WuorLep Poconta. (Jsotria_ ver- 
ticillata, (Willd.) Raf.). Stem about 10 in. high; leaves in a whorl at 
summit, resembling No. 4. Flowers greenish-yellow. Sepals only about 
equal in length with the petals. Moist woods, rare. Connecticut, south- 
ern New York and New Jersey. June. 
5. ARETHUSA, L. 
Of the two known species ours is an exquisite low herb found usually 
in bogs. The sheathed stem arises from a small bulb and is terminated 
by a single or rarely by two, large, richly colored, rose-purple flowers. 
The solitary leaf is at first concealed by a sheath of the stem but at 
the time of the opening of the flower it expands and protrudes. Sepals 
