GENUS 7. 



ORCHID FAMILY. 



553 



i. Gymnadeniopsis nivea (Xutt.) Rydb. South- 

 ern Small White Orchis. Fig. 1364. 



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

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

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



Stem slender, angled, 12' -15' high. Leaves linear- 

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

 and passing into the bracts of the spike; spike 2' -4' 

 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 r -8' long, acute ; spike 

 I '-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 Willd. Sp. PI. 4: 41. 1805. 

 Habenaria tridentata Hook. Exot. Fl. 2: pi. 81. 1825. 

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

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



Stem S'-i8' 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 i'-2' 

 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. 



Gymnadenia conopsea (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. 



