LlMNORCHIS AND PlPERIA NORTH OF MEXICO 



627 



1883, Mrs. Bailey Willis; Seattle, 1890, C. V. Piper ; Cascade 

 Mts., 1882, Brandcgec, 4.80. 



British Columbia: Vancouver Island, 1887, John Macon it ; 



Tulameen River, 1900, Prof . J. F. Kemp. 



Idaho : Valley of Clearwater River, 1892, Sandberg, Mac- 

 Dougal & Heller, 288. 



17. Limnorchis graminifolia 



Platanthera gr amine a Lindley, Gen. & Sp. Orchid. PI. 2 



89. 



1835 ; not Habenaria graminea Spreng. Syst. 3: 690. 1826; nor 



P. graminea Lindley, /. c. 292 ; Platanthera hyperborea y var. 

 dilatata Kraenzlin, Orch. Gen. et Sp. 640, in part, 1890. 



Very slender, 3-4 



dm. high : leaves 



narrowly linear, 5-10 cm. long, 3-4 mm. 

 wide : spike short ; bracts lanceolate, 

 shorter than the flowers : these white, 

 12-15 mm. long: upper sepal ovate, 4 

 mm. long, the lateral ones lanceolate : 



petals 



narrowly lanceolate, slightly 



Fig. iS. 



shorter than the upper sepal ; lip lanceo- 

 late, obtuse, dilated near the base, but 

 not rhombic ; spur one-third to one- 

 half longer than the lip, clavate towards the apex, acute. (Fig. 18.) 



This plant is nearest related to L. leucostachys \ but differs in the 

 slender habit, narrow leaves and the form of the lip. The type is 

 in Lindley' s herbarium, where I saw it. The specimens from 

 Lower Canada I cannot distinguish from the Alaskan specimens, 

 although the occurrence of the species on the east coast is exceed- 

 ingly remarkable. 



Type : " In ora occidcntali Americae scptcntrionalis, Mendes 



(haa. s. sp. comm. eel. Mensies)." 



Alaska: Douglas Island, 1891, Grace E. Cooley ; Gorman's 

 Lake, 1895, M. W. Gorman, 74. 



Canada : Mouth of Riviere du Loup, Wm. Canby. 



, Convallariaefoliae: Slender plants about 3 dm. high: spike 

 short and rather lax : flowers white ; lip linear, not at all dilated 

 at the base ; spur about equalling the lip ; connective narrow. 



18.' Limnorchis gracilis (Lindl.). 



Platanthera gracilis Lindley, Gen. & Sp. Orchid. PI. 288. 



