PIPER FLORA OF THE RTATE OF AVASITTNCiTON. 207 



Specimens examined: Upper Nis(|ually X'allev, Allm 149; ICllu', Flclt 2<S'J; Falcon Yn]- 

 Icy, Sulcsdorf 500: Wind River, 7^7(7/ lit)!); Blue Mountains, /'//w 2428; Groen River Hot 

 Springs, Piper in 1SS7. 



Zonal distribution: Caiuulian. 



CYTHEREA. 



1. Cytherea bulbosa (L.) lIou.se, Bull. Torr. Ciiil. 32: .•>S2. MM).'). Calypso. 



Cypripedium bulbu.sum L. Sp. Pi. 2: 9.51. 17.")o. 

 [' Calypao horealis Salisb. Parad. Lond. /. S'J. LSOG. 



Cytherea horealis Salisb. Trans, llort. Soe. Lond. 1: oOl. 1X12. 

 Calypso hidhosa Oakes, Cat. Vermont PI. 28. 1842. 

 L Calypso hulbosa "forma occidentalis" Holzinger, Contr. Nat. Ib'tli. 3: 2.'Jl . 1S9.5. 

 L Calypso occidentalis Heller, Bull. Torr. Clul) 25: 193. 1898. 

 Type locality: "Habitat in Lapponia, Russia, Sibiria." 

 Range; Alaska to Labrador, south to California, Michigan, and Maine. 

 Specimens examined: Whidby Island, Piper, May, 1898; Seattle, Pi/»r 1 '..:>; 'i'acouia, 

 Flctt 111; Olympia, Cooper; Roy, Allen, April 19, 1889; Blue Mountains, Ilurmr 4(i7. 

 \ Zonal distribution: Transition and Canadian. 



The western form of this species has the hairs on the lip wiiite inslcad of \(lli,\v. It 

 grows commonly in places carpeted. by Hypnuni, but wi' have never lound il oceuiring in 

 Spliagnuin, as it does in the \e\v England States. 



OPHRYS. 



Column very short; 5 mm. long 1 . O. cordafu . 



Column 2 to 3 mm. long. 



Lip 5 mm. long; ovary glabrous 2. (>. cnuri na. 



Lif) 9 mm. long; ovary glandular. 3. O. conrallarioides. 



1. Ophrys cordata L. Sp. PI. 2: 94G. 1753. 



Listera cordata R. Br. in Ait. Hort. Kew. ed. 2. 5: 201. 1813. 



Listera nephrophylla Rydi)eig, Mem. N. Y. Bot. Gard. 1: 108. 1900. 



Type locality: "Habitat in Europae frigidae sylvis humentibus." 



Range: Alaska to Labrador, south to Oregon and Penn.sylvania. Europe. Asia. 



Specimens examined: Westport, Lamb 1093; Cascade Mountains, latitude 49°, Lyall 

 in 1859; Skokomish Valley, Kincaid, May, 1892; Stevens Pass, Sundhcnj d' Lellniy 780; 

 IKvaco, Piper 4951; Seattle, Piper in 1885. 



Zonal distribution: Humid Transition. 



2. Ophrys caurina (Piper) Rydberg, Bull. Torr. Club 32: (UO. 1905. 

 Listera cauiina Piper, Erythea 6: 32. 1898. 



Listera retusa Suksdorf, Deutsch. Bot. Monatss. 18: 155. IIKK). 



Type locality: Cascade Mountains, Washington. Type collected by Henderson. 



Range: British Columbia to Oregon. 



Specimens examined: Clallam County, Elmer '254S; Baldy Peak, Lamb 1295; Mount 

 Baker, Flett 805; Skamania County, Suksdorf 2'A2ij\ Green River Hoi vSprings, Piprr 380; 

 Stampede Pass, Hemlerson, July, 1892. 



?JONAL distribution: Canadian. 



3. Ophrys convallarioides (S\v.) W. F. Wight, Bull. Torr. Club 32: 380. 1905. 

 Epipnctis cmvallarioides S\v. Kongl. Vet. Akad. Handl. Stockli. II. 21: 232. 1800. 

 Listera convallarioides Torr. Comp. 320. 1826. 



Type locality: "E. Terra Nova Amer. sept." 



RANCrE; Alaska to Nova Scotia, south to California and Vi'rmont. 



