152 ORCHIDACEAE 
1. H. orbiculata, (Pursh.) Torr. (Fig. 3, pl. 18.) Larcge Rounp- 
LEAVED ORCHIS. Stem slender 1 to 2 ft. high, bearing a long loose clus- 
ter of green flowers and one or more leafy bracts. Leaves large, shining, 
3 to 6 in. long and nearly round, lying flat on the ground. Spur longer 
than the long twisted ovary. In rich damp woods throughout our area. 
July-Aug. 
2. H. Hookeri, Torr. HooKker’s Orcuts. Scape only about half as 
high as No. 1 and leaves also smaller and less spreading. Flowers yel- 
lowish-green, spur 1 in. long. In most respects strongly resembling No. 
1, but the green bracts on the stem are wanting. In situations similar 
to No. 1. June-Sept. 
3. H. obtusata, (Pursh.) Richards. (Fig. 4, pl. 19.) Sma 
NorTHERN Boc Orcuis. Stem 4 to 10 in. high, slender, 4-angled. The 
single leaf arising from base of stem ovate, widest toward apex. Lip 
narrow lance-shaped and as long as the spur. Bogs, generally distributed 
in our area. July-Sept. 
4. H. hyperborea, (L.) R. Br. Tart Leary GREEN Orcuis. (Lim- 
norchis media, Rydb.). Stem 1 to 3 ft. high, leafy. Lance-shaped or 
broad lance-shaped 2 to 12 in. long. Spike of numerous flowers very 
narrow; flowers greenish-yellow, the bracts, one subtending each flower, 
are longer than the flower. Spur as long as the slightly indented lip. 
Swamps and damp woods. May-Aug. 
5. H. dilatata, (Pursh.) Gray. (Fig. 5, pl. 18.) Tarn WuitEe Boe 
Orcuis. Slender stem 8 in. to 2 ft. high. Leaves lance-shaped to grass- 
like. Spike of flowers narrow, long. Bracts below the flowers about as 
long as or shorter than the white flowers. Lip linear and ending in an 
obtuse point. Swamps and wet woods. June-Sept. 
6. H. fragrans, A. Gray. FRAGRANT OrcuIs (Limnorchis fragrans, 
Rydb.). Resembles No. 5. Lip narrowly linear, dilated at the base, 
shorter than the spur. Flowers small, white, very fragrant. Bogs, 
Willoughby mountains, Vermont. July. 
7. H. integra, (Nutt.) Spreng. Smart SournerN Orcuis. Stem 1 
to 2 ft. high; leaves lanceolate to grass-like, about 3; spike of flowers 
short (1 to 3 in.), with numerous orange-yellow flowers. Lip ovate, 
longer than the sepals, spur longer than the sepals. Wet places, New 
Jersey and southward. July. 
8. H. bracteata, (Willd.) R. Br. (Fig. 4, pl. 18.) Lona-Bractep 
Orcuis. Stem 4 to 2 ft. high. Leaves oblong, obtuse at apex or some- 
what sharp pointed. Lip somewhat 3-toothed at outer end. Bracts below 
the flowers lance-shaped and three times as long as the greenish flowers. 
Petals very narrow, twice as long as the white spur. Woods and mea- 
dows. May-Sept. 
9. H. clavellata, (Michx.) Spreng. (Fig. 7, pl. 19.) Smarty Green 
Woop Orcuis. Stem 4 to 1% ft. high, with only a single leaf, which is 
near the base, and with several leaf-like bracts along the stem above. The 
larger single leaf, widest toward the apex, 2 to 6 in. long. Bracts below 
the flowers not so long as the ovary. Flower spike 4 to 2 in. long, with 
numerous small greenish flowers. Moist woods. July-Aug. 
10. H. flava, (L.) A. Gray. (Fig. 5, pl. 19.) Smart Pate GREEN 
Orcuis. Stem 1 to 2 ft. high. Leaves oblong to lance-shaped, sharp 
