(162) 



at the base and near the apex, acute ; spur club-shaped or 

 almost saccate, nearly straight, about equalling the lip in 

 length ; ovary 8-9 mm. long in fruit, oblong-ellipsoid. 



Apparently nearest related to L. hyfierborea, but smaller 



in every way ; the spur is not curved forward as in that 



species, and the petals are very broad and short, scarcely 



more than half as long as the upper sepal ; the spur resembles 



that of L. stricta, but that species has much larger flowers, 



comparatively longer linear lip, longer petals and reflexed 



lower sepals. Type collected by R. S. Williams at Bennett 



City, August 25, 1899; also collected by Tarleton above Ft. 



Selkirk. 



Limnorchis leptoceratitis Rydb. sp. nov. 



Roots fascicled, fleshy, fibrous; stem slender, striate, 

 glabrous, 2-4 dm. high. Lower leaves oblong, obtuse, half- 

 clasping, 4-8 cm. long ; upper leaves linear-lanceolate, 

 acute ; bracts linear-lanceolate, the lower somewhat longer 

 than the white flowers, the upper shorter; sepals 3-4 mm. 

 long, broadly lanceolate, the upper erect and almost straight, 

 the lateral ones reflexed-spreading, 3-nerved, acute ; upper 

 petals linear, acute, about as long as the sepals ; lip lanceo- 

 late, obtuse, somewhat rhombic-dilated at the base, equalling 

 the sepals ; spur very slender, cylindric, curved forward, a 

 little exceeding the lip ; ovary 8-9 mm. long in fruit, ellip- 

 soid. 



Nearest related to L. dilatata {Habenaria dilatata), from 

 which it differs in the longer spur, which is not at all cla- 

 vate, the narrower petals, smaller flowers, and shorter, more 

 obtuse leaves. Type collected by R. S. Williams at Bennett 

 City, Aug. 25, 1899. Also collected by J. Albert Rudkin 

 in southern Alaska, 1883, and b Y J- M - Macoun in Un- 

 alaska, July 25, 1891. 



Orchis rohindifolia Pursh. Lake Lebarge (Tarleton). 



Peramium repens (L.) Salisb. Below Selkirk (Williams). 



Corallorhiza Corallorhiza (L.) Karst. Thirty-mile River 

 (Williams) ; fruiting specimen only, and determination doubt- 

 ful. White Horse Rapids and above Fort Selkirk (Tarleton). 



Gyrostachys Romanzoffiana (Cham.) MacM. Swamp, 

 Dawson (Williams). 



