134 ORCHID ACE M. Habenaria. 



Schischmareffiana, Cham, in Linnaea, iii. 32. Platanthera foetida, Geyer. Gymna- 

 denia longispica, Durand, Journ. Acad. Philad. 2 ser. iii. 101. H. foetida, Wat- 

 son, Bot. King Exp. 341. 



In the mountains from Mendocino County, and Yosemite Valley to Unalaska ; also in the 

 Wahsatch and Uintas, Watson. July and August. 



* * Stem stouter from a fusiform tuber, often tall, leafy throughout: sepals 

 3-nerved (except in H. Cooperi), the lateral oblique at base, the upper one 

 broader : petals thin : lip fleshy, severalnerved. 



*- Spur elongated, much exceeding the sepals. 



3. H. leucostachys, Watson. Stout, 1 to 4 feet high, bearing a many- 

 flowered dense or open spike of rather large white flowers : leaves lanceolate, acute, 

 diminishing upward : bracts linear-subulate, acuminate, equalling and usually 

 exceeding the ovary : lateral sepals oblong, the upper ovate-oblong, 2 or 3 lines 

 long ; petals lanceolate and subfalcate, oblique at base, more or less connivent with 

 the bases of the sepals ; lip 3 or 4 lines long, rhombic-lanceolate ; spur narrow, 4 to 

 6 lines long : beak of the stigma very prominent, ovate, more than half the length 

 of the connective : glands linear-oblong, vertical : capsule oblong, sessile, 6 to 9 

 lines long. Platanthera leucostachys, Lindl. Orch. 288. H. dilatata, Watson, Bot. 

 King Exp. 340. 



In moist places in the mountains, from Mariposa County to Oregon and Idaho ; also eastward 

 in Nevada and Arizona : July to September. Specimens collected by Bolander in swamps 

 near San Francisco appear to be the same. Veiy similar to H. dilatata, Gray, of the Rocky 

 Mountains and eastward, from which it is distinguished by its narrow elongated spur. It 

 includes H. Thurberi, Gray, Proc. Am. Acad. vii. 389, excluding the variety, from which the 

 characters were chiefly drawn and which is the following. 



4. H. sparsiflora, Watson. Stem rather slender, a foot or two high : leaves 

 narrowly lanceolate, acutish or acute : bracts linear-lanceolate, acuminate, usually 

 much exceeding the greenish flowers, which are few (10 to 20) and distant: peri- 

 anth thin and delicate, apparently spreading ; lateral sepals oblong or lanceolate, 2 

 or 3 lines long, the upper ovate and a little shorter ; lip narrow, linear or lanceolate, 

 3 or 4 lines long, nearly equalling the narrow spur : anther emarginate ; stalks 

 of the pollen-masses very slender : glands orbicular ; beak of the stigma broadly 

 triangular : capsule oblong, sessile, 6 lines long. Proc. Am. Acad. xii. 276. H. 

 Thurberi, var., Gray, 1. c. 



A species of peculiar habit, apparently common in the Sierra Nevada and in the mountains of 

 Northern California. 



5. H. pedicellata, Watson, 1. c. Raceme loose, 20 - 30-flowered, with linear- 

 lanceolate bracts shorter than the long-pedicellate flowers : sepals 2| lines long, 

 oblong, the upper ovate ; lip oblong-lanceolate, half broader at base, 3 lines long ; 

 spur filiform, twice longer than the sepals : pollen-masses attached to the oblong 

 glands by a short thick pedicel : beak of the stigma ovate-triangular, prominent : 



-capsule ovate-oblong, 4 lines long, attenuate into a slender pedicel about as long. 



A single specimen of this very distinct species was collected by Brewer in the Shasta Mountains 

 (n. 1453, in part) ; September. 



*- *- Spur short, scarcely exceeding the sepals. 



6. H. hyperborea, E. Brown. Stout, | to 2 feet high, with the habit of 

 H. leucostachys : flowers greenish and smaller : lip lanceolate, scarcely broader at 

 base, not connivent with the bases of the sepals ; spur 2 or 3 lines long : glands 

 orbicular : stigma not beaked. 



Specimens apparently of this species, which ranges far northward and eastward and is also 

 found in Europe, have been collected near Mono Lake (Brewer) and in Ruby Valley, Nevada, 

 Watson. 



