37 
Order XIV. ORCHIDACEZ Lindl. (By C. H. OsTENFELD). 
A. Pale saprophyte, leaves reduced to scales............ 1. Coralliorrhiza. 
B. Green autophytes. 
Ty A) Ra: Glies sea ag ooo boob Oma e Sosa cos go 2. Listera. 
b. Lip with spur. 
1. The two disks of the pollinia enclosed in a common pouch 38. Orchis. 
ys TNS Eo) GHG Teel, Cog Soop oo Mb UD e doe OMG OC 4. Habenaria. 
1. CORALLIORHIZA R. Br. 
78. C. innata R. Br. 
Lge. Consp. Fl. Groenl. p. 120 and p. 283; Rosenv., Till. p. 711; 
Ledeb. FI. Ross. IV p. 49; Rothr., Fl. of Alaska p. 456; C. virescens, 
Fl. D. tab. 2363; C. ericetorum, Fl. D. tab. 2364. 
Scape with pale-brownish scales; rhizome coral-like; raceme 
few-flowered; perianth yellowish-green, lip oblong with two teeth 
above the base, whitish with purple dots; spur only a small 
protuberance. 
Am.: Kotzebue Sound, West Greenl. 60° 43’—69° 50’ (!). 
Geogr. area: Northern North America, Iceland, Most parts of Eu- 
rope, Siberia. 
2. LISTERA R. Br. 
79. L. cordata (L.) R. Br. 
Lge. Consp. Fl. Groenl. p.120 and p.283; Roseny. Till. p.711; Hook. 
Fl. bor. Am. II p. 204; Ophrys cordata, Fl. D. tab. 1278. 
Stem with two opposite sessile cordate-ovate leaves; rhizome 
creeping; raceme few-flowered, perianth brownish-green; lip with a 
tooth on each side at the base, twice as long as the sepals and 
petals, two-cleft. 
Am.: West Greenl. 60°—69° 50’ (!), East Greenl. 60°—61° (!) 
Geogr. area: Northern North America, Iceland, Ferdes, North, 
East and Central Europe, Siberia. 
3. ORCHIS L. 
80. O. rotundifolia Pursh. 
Platanthera rot., Hook. Fl. bor. Am. II p. 200, tab. 201; Lge. Consp. 
Fl. Groenl. p.119 and p. 283; Fl. D. tab. 2871. 
Stem with 1—2 scales and 1 obovate-orbicular leaf; roots of 
numerous fleshy fibres; spike few-flowered; perianth rose; lip white, 
spotted with purple, 3-lobed and the middle lobe larger, obcordate 
with a notch at the extremity; spur a little shorter than the lip. 
Am.: Hudson Bay, West Greenl. 60°—61° (!). 
Geogr. area: Northern North America. 
