WOOTON" AND STANDLEY — FLOEA OF NEW MEXICO. 153 



Lip lanceolate, dilated at the base; spur various. 



Spur about equaling the short lip 6. L. borealis. 



Spur nearly two-thirds longer than the rather long 



lip 2. L. thurberi. 



Flowers greenish or purplish; spur shorter than or about 

 equaling the lip, this lanceolate, 4 to 5 mm. long. 

 Petals purplish; spur one-half to two- thirds as long as 



the lip, conspicuously saccate, slightly curved. .. 5. L. purpurasc^ns. 

 Petals greenish; spur almost equaling the lip, clavate, 



curved 3. L. viridiflora. 



^ Mr. Ames refers a specimen collected on the Pecos River, August 6, 1898 {G . E. 

 Coghill 147), to L. dilatata. Doctor Rydberg cites a specimen of L. ensifolia from 

 Silver City, collected in 1880 by E. L. Greene. We have seen neither of these speci- 

 mens. L. dilatata is a northeastern species, ranging only as far west as Nebraska, 

 excluding the specimen mentioned. L. ensifolia is closely related to L. sparsifolia, 

 and is reported from the same region; it differs in having a shorter and denser spike, 

 the upper sepals larger, and the bracts shorter and broader; its leaves are noticeably 

 different in shape in material we have seen. 



1. Limnorchis brevifolia (Greene) Rydb. Bull. Torrey Club 28: 631. 1901. 

 Habenaria brevifolia Greene, Bot. Gaz. 6: 218. 1881. 



Type locality: "In dry ground under Pinus ponderosa, Pinos Altos Mts.," New 

 Mexico. Type collected by Greene (no. 369). 



Range: Mountains of southern New Mexico, southward into Mexico. 



New Mexico: Pinos Altos Mountains; 'Wliite Mountains; Iron Creek; Sacramento 

 Mountains. Canadian and Transition zones. 



2. Limnorchis thurberi (A. Gray) Rydb. Bull. Torrey Club 28: 624. 1901. 

 Habenaria thurberi A. Gray, Proc. Amer. Acad. 7: 389. 1868. 



Type locality: Arizona. 



Range: California and Arizona to the mountains of western New Mexico. 



New Mexico: Mogollon Creek {Metcalfe 282). 



3. Limnorchis viridiflora (Cham.) Rydb. Bull. Torrey Club 28: 616. 1901. 

 Habenaria borealis viridiflora Cham. Linnaea 3: 28. 616. 1828. 



Type locality: "Unalascha." 



Range: Alaska, southward to the mountains of Colorado and New Mexico, east- 

 ward to Nebraska and South Dakota. 

 New Mexico: Santa Fe and Las Vegas mountains. Canadian Zone. 



4. Limnorchis sparsiflora (S. Wats.) Rydb. Bull. Torrey Club 28: 631. 1901. 

 Habenaria sparsiflora S. Wats. Proc. Amer. Acad. 12: 276. 1877. 



Type locality: "Common in the Sierra Nevada and mountaina of Northern 

 California. ' ' 



Range: Oregon and California to the mountains of western New Mexico. 



New Mexico: Mogollon Mountains {Rusby 399, in part). 



Mr. Ames refers to this species a specimen from "spring at Twin Sisters near Silver 

 City." This may be the L. ensifolia Rydb., reported from New Mexico. 



5. Limnorchis purpurascens Rydb. Bull. Torrey Club 28: 269. 1901. 

 Type locality: Iron Mountain, Colorado. 



Range: Mountains of Colorado and New Mexico. 

 New Mexico: Santa Fe and Las Vegas mountains. 



