210 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
Spur clavate, usually shorter than the lip..........- 4. L. dilatata. 
Spur not clavate, longer than the lip. 
Spike moderately dense; spur acutish.......... 5. L. leucostachys. 
Spike very dense; spur obtuse................. 5a. L. leucostachys robusta. 
1. Limnorchis stricta (Lindl.) Rydberg, Mem. N. Y. Bot. Gard. 1: 105. 1900. 
Platanthera stricta Lind]. Gen. & Sp. Orch. 288. 1835. 
Habenaria gracilis Wats. Proc. Am. Acad. 12: 277. 1877. 
Type Locauity: ‘In America boreali-occidentali.”” Collected by Douglas. 
Raneae: Alaska to Washington and Colorado. 
SPECIMENS EXAMINED: Clallam County, Elnier 2549; Mount Rainier, Smith 874; Piper 
2094; Cascade Mountains, latitude 49°, Lyall in 1859; Silverton, Bouck; Seattle, Piper, 
June, 1889; Olympia, Henderson, May, 1892; upper Nisqually Valley, Allen 76; Mount 
Adams, Suksdorf' 41; Wind River, Flett 110; Skagit Pass, Lake & Hull 624 in part; Ellens- 
burg, Whited 532; Stampede Pass, Henderson, October, 1892; Simcoe Mountains, Howell 
302; Lake Wenache, Sandberg & Leiberg 647; Ilwaco, Piper 5001; Kreager 189; Green 
River Hot Springs, Piper 415. 
ZONAL DISTRIBUTION: Transition to Hudsonian. 
2. Limnorchis viridiflora (Cham.) Rydberg, Bull. Torr. Club 28: 616. 1901. 
Habenaria borealis viridiflora Cham. Linnaea 3: 28. 1828. 
Type vocaity: ‘In Unalaschka.”’ 
Rance: Alaska to Washington and Colorado. 
SPECIMENS EXAMINED: Spokane County, Suksdorf 452. 
Perhaps not distinct from L. hyperborea (L.) Rydb. (Habenaria hyperborea R. Br.), to 
which it has been referred. 
3. Limnorchis laxiflora Rydberg, Bull. Torr. Club 28: 630. 1901. 
Type LocaLiry: Coast Mountains, Oregon. 
Rance: Washington and Oregon to Colorado. 
SPECIMENS EXAMINED: Eastern Washington, without locality, Wilkes Expedition. 
4. Limnorchis dilatata (Pursh) Rydberg in Britton, Man. 294. 1901. 
Orchis dilatata Pursh, Fl. 2: 588. 1814. 
Habenaria dilatata Hook. Exot. Fl. 2: ¢. 95. 1825. 
Habenaria borealis Cham. Linnaea 3: 28. 1828. 
Type Locauiry: Labrador. 
Rance: Alaska to New England, Colorado, and Washington. 
SPECIMENS EXAMINED: Olympic Mountains, Piper, August, 1895; Stevens Pass, Whited 
1840; Mount Stuart, Hlmer 1213; Mount Adams, Suksdorf 2298. 
5. Limnorchis leucostachys (Lindl.) Rydberg, Mem. N. Y. Bot. Gard. 1: 106, 1900. 
Platanthera leucostachys Lindl. Gen. & Sp. Orch. 288. 1835. 
Habenwa leucostachys Wats. Bot. Cal. 2: 134. 1880. 
Type Lecariry: ‘In ora occidentali Americae septentrionalis.”” Collected by Douglas. 
Rance: Alaska to California and Utah. 
SPECIMENS EXAMINED: Clallam County, Elmer 2551; Blue Mountains, Lake & Hull, 
July, 1892: Waitsburg, Horner 188; Salmon River, Blue Mountains, Horner 462. 
ZONAL FISTRIBUTION: Transition. 
5a. Limnorchis leucostachys robusta Rydberg, Bull. Torr. Club 28: 626. 1901. 
Type Locatity; ‘‘Washington.”” Collected by G. R. Vasey in 1889. 
Range: British Columbia to Oregon and Idaho. 
SPECIMENS EXAMINED: Seattle, Piper 291, July, 1897; Olympia, Heller 4046; Kincaid, 
July, 1896; Nisqually Valley, Allen 75; Skagit Pass, Lake & Hull 624 in part; Wenache 
region, Tweedy, July, 1883; Mount Stuart, Sandberg & Leiberg 576; Ellensburg, Whited 
532, 698; Falcon Valley, Suksdorf 1356; Marshall Junction, Piper, July 2, 1896; Mount 
Carlton, Kreager 195; without locality, Vasey in 1889. 
ZONAL PISTRIBUTION: Transition and Canadian. 
