LlMNORCHIS AND PiPERIA NORTH OF MeXICO 635 



section of Haboiaria which now constitutes LininorcJiis, but his de- 

 scription of the flower is the best hitherto given of any species of 

 Pipcria. 



Synopsis of Species 



Spur less than twice as long as the lip. 



Stem leafy only at the base ; lip oblong ; spur slender, slightly exceeding the 

 lip. \. P. Unalaschensis. 



Stem more or less leafy ; lip ovate. 



Spur slightly exceeding the lip, very saccate. 2. P. Cooperi. 



Spur nearly twice as long as the lip, only slightly clavate. 



3. P. lancifoiid. 

 Spur 2-3 times as long as the lip, filiform. 



Lip linear to lanceolate. 



Spike very lax ; lip 4-5 mm. lon^ ; spur about 8-10 mm. 



4. P. li'ptopetahi. 

 Spike dense ; lip ab^ut 6 mm. long ; spur 15-18 mm. long. 



5. P. 1)1 u tijlora. 

 Lip ovate or ovate-lanceolate. 



Spike elongated, lax ; leaves withering at anthesis. 



Bracts linear-lanceolate ; stem leafy only at the base. 



6. P. e Cleans. 

 Bracts ovate-lanceolate ; stem usually leafy. 7. P. longispica. 



Spike short and very dense ; flowers crowded ; leaves withering before 

 anthesis. 

 Petals and sepals about 4 mm. long ; petals purplish or greenish. 



8. P. Miclmeli. 

 Petals and sepals about 5 mm. long ; petals white. 9. /'. iiiaritiina. 



I. PiPERIA Unalaschensis (Spreng.) Rydb. Bull. Torr. Club, 28 : 



270. 1 90 1 



Spirantlics Unalaschensis Spreng. Syst. 3: 708. 1826; Habc- 



naria Scliisc]imareffianaQ\\?in\.\Jim\-Ae.^,2>'- '^9- 1828; Hermmiinn 

 UnalascJikcnsc ^€\<z\\&\\h. Fl. Germ. 13: 107.//. 6^; PlatantJicra 

 Scliisclimareffiaiia Lindl. Gen. & Sp. Orchid. 286. 1835; Habe- 

 naria foctida S. Wats. Bot. King's Exped. 5: 341. 1871 ; Plat- 

 antJicra foctida Geyer. as a synonym under the preceding ; 

 Habenaria Unalaschensis Ws-is. Proc. Am. Acad. 12: 277. 1877; 

 Montolivaea Unalaschensis Rydb. Mem. N. Y. Bot. Gard. i : 107. 

 1900. 



Stem strict, slender, 3—5 dm. high, leafy only near the base : 

 basal leaves oblanceolate, obtuse or acutish, i — 1.5 dm. long, .8-3 

 cm. wide, withering at anthesis or soon after ; stem leaves bract- 

 like, linear-lanceolate to lanceolate, attenuate, .5—1 cm. long : spike 

 long and lax, 1—3 dm. long; bracts lanceolate to ovate-lanceolate, 



