Genus 7. 



ORCHID FAMILY. 



553 



1. Gymnadeniopsis nivea (Nutt.) Rydb. South- 

 ern Small White Orchis. Fig. 1364. 



Orchis nivea Nutt. Gen. 2 : 188. 1 8 1 8. 

 Habenaria nivea Spreng. Syst. 3: 689. 1826. 

 G. nivea Rydb. in Britton, Man. 293. 1901. 



Stem slender, angled, I2'-I5' high. Leaves linear' 

 lanceolate, acuminate, 4'-8' long, the upper much shorter 

 and passing into the bracts of the spike; spike 2'-^' 

 long, loosely many-flowered; flowers small, white; 

 lateral sepals broadly oblong, dilated or slightly eared 

 at the base, spreading, about 3" long; petals and upper 

 sepal smaller; spur capillary, as long as the ovary or 

 longer; stigma appendaged by 2 small horns affixed to 

 the back of the anther; ovary straight. 



In pine barren bogs, New Jersey to Florida and Alabama. 

 Aug. 



2. Gymnadeniopsis Integra (Nutt.) Rydb. 

 Small Southern Yellow Orchis. Fig. 1365. 



Orchis Integra Nutt. Gen. 2 : 188. 1818. 

 Habenaria integra Spreng. Syst. 3 : 689. 1826. 

 G. integra Rydb. in Britton, Man. 293. 1901. 



Stem i°-2° high, angled, with 1-3 linear- 

 lanceolate leaves below, and numerous bract-like 

 ones above. Lower leaves 2'-8' long, acute ; spike 

 l'-3' long, densely flowered; flowers orange- 

 yellow; upper sepals and petals connivent; lateral 

 sepals longer, oval or obovate, spreading; lip ob- 

 long, mostly crenulate or erose, sometimes entire ; 

 spur straight, longer than the lip, shorter than the 

 ovary; stigma with 2 lateral fleshy appendages 

 and a narrow beak. 



In wet pine barrens, New Jersey to Florida and 

 Louisiana. The upper surface of the leaves is often 

 reticulated with hexagonal cells. July. 



3. Gymnadeniopsis clavellata ( Michx. ) Rydb. 

 Small Green Wood Orchis. Fig. 1366. 



Orchis clavellata Michx. Fl. Bor. Am. 2 : 155. 1803. 

 Orchis tridentata Willi Sp. PI. 4: 41. . 1805. 

 Habenaria tridentata Hook. Exot. Fl. 2: pi. Si. 1825. 

 Habenaria clavellata Spreng. Syst. 3 : 689. 1826. 

 G. clavellata Rydb. in Britton, Man. 293. 1901. 



Stem 8-18' high, angled, i-leaved near the base, 

 often with several small bract-like leaves above, or 

 one of these larger. Basal leaf oblanceolate, 2'-6' 

 long; bracts shorter than the ovaries; spikes }'-z' 

 long, loosely flowered; flowers small, greenish or 

 whitish; sepals and petals ovate, lip dilated and 

 3-toothed at the apex, the teeth often small and in- 

 conspicuous; spur longer than the ovary, incurved, 

 clavate; stigma with 3 club-shaped appendages^; 

 anther-sacs nearly parallel; capsule ovoid, 3" -4" 

 long, nearly erect. 



In wet or moist woods, Newfoundland to Minnesota, 

 south to Florida and Louisiana. Three-toothed or rein- 

 orchis. July-Aug. 



Gvmnadenia con6psea (L.) R. Br., otherwise known only from the Old World, has been col- 

 lected at Litchfield, Connecticut. The flower has a broad 3-lobed lip and a slender spur much longer 

 than the ovary. 



