I06 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



Geyser Basin, j8p4, jSp8, jpoo (?),jpo2: 1888, Ur. Charles H. 

 Hall: 1883, Miss Compton. 



Idaho: Henry's Lake, July 31, 1897, Rvdberg & Bcsscy, jgo^ 

 and jpoj. 



* Limnorchis leucostachys (Lindl.) ; Platauthera leacostachxs Lindl. 



Gen. & Spec. Orch. 288 ; Habenaria leucostachys Wats. Bot. Cal. 



2: 134. 



It is nearest related to H. dilatata, but differs in the very long 

 spur, which is arcuate and about twice as long as the sepals. In 

 wet places in the mountains. 



Montana: Upper Box Elder Creek, 1886, R. S. Williams, 



519- 



* Coeloglossum bracteatum (Willd.) Pari. Fl. Ital. 3: 409: Orchis 



bractcata Willd. Sp. PI. 4 : 34 ; Habenaria bracteata R. Br. ; Ait. 



Hort. Kew. Ed. 2, 5: 192 [111. Fl. i: 463]. 



The genus is generally accepted by European botanists. It re- 

 sembles Limnorchis in habit, but the sepals are somewhat arcuate and 

 bent together forming a kind of hood, the lip is 2-3-toothed at the 

 apex, the column very short, and the glands small and surrounded 

 by a thin membrane. 



It is characterized by its long bracts, greenish flowers and the very 

 short saccate spur. In cold bogs, at an altitude of 1000-2500 m. 



Montana: Tiger Butte, 1886, R. S. Williams, 48: Columbia 

 Falls, Mrs. Kennedy, ^7; Lone Mountain, 1886, Tzvcedy, i2ij; 

 Flathead River, 1883, Canbv, jio. 



* Montolivaea elegans (Lindl.) Reichenb. ; Otia Bot. Hamb. 107 ; 



Plalanthera elegans Lindl. Gen. and Sp. Orch. 285 ; Habenaria 



elegans Bolander ; Wats. Bot. Cal. 2: 133, in part. 



The genus somewhat resembles Limnorchis in the form of the 

 flowers, but the habit is different. The true leaves are basal or 

 nearly so, the stem leaves as a rule being small and bract-like. The 

 flowers are small, more or less greenish; the sepals are ovate, i- 

 nerved and subequal ; the petals and lip are very much of the 

 same shape and slightly smaller and darker than the sepals : the 

 column is very short. The anther is ver}^ large for the size of the 

 flower. The anther-cells are parallel and the gland ver}' small. 



It differs from the following b}^ the stouter stem, denser spike, 

 longer spur and flowers nearly twice as large. On hillsides. 



Montana: Mission Range, 1883, Canby, joy. 



