134 ORCHIDACE.E. Habenaria. 



Schisclanarejlaiia, Chum, in Liiuiu'a, iii. 32. Platanthera JcetUla, Geyer. Gymna- 

 ilenia longispica, Dunuul, .[ourn. Acad. Pliilad. 2 ser. iii. 101. //. fatida, Wat- 

 son, Bot. King Exp. 31 1. 



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

 Wahsatcli and Uintas, Walson. July and August. 



* * Stem stouter from a fusiform tuber, often t<ili, leafy throwjhout : sepals 

 ^-nerved {except in 11. Cooperi), the lateral oblupue at base, the upper one 

 broader : pjetals thin: Up fleshy, several-nerved. 



■i- Spur elonyated, much exceeding the sejnds. 



3. H. leucostachys, Watson. Stout, 1 to 4 feet liigli, bearing a niany- 

 lloweied densu or u|ii;ii .spike of rather large white llowers : leaves lanceolate, acute, 

 diminishing upwaui : hracts linear-subulate, acuminate, ecjualling and usually 

 exceeding the ovary : lateral sepals oblong, the \\\)\)GV ovate-oblong, 2 or 3 lines 

 long j petals lanceolate and subfalcate, obli(iue at base, more or le.ss connivent with 

 the bases of the sepals; li[) 3 or i lines long, rhombic-lanceolate; spur narrow, 4 to 

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

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

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

 King Exp. 340. 



In moist places in tlie mountains, from Mariposa County to Oregon and Idalio ; also eastward 

 in Nevada and Arizona : July to September. Specimens collected by Bulandcr in swiiniiis 

 near San Francisco appear to be tlie same. Very similar to 11. dilatata, Oray, of tlie Rocky 

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

 includes //. Thurkri, Gray, Proc. Am. Acad. vii. ysi), excluding the variety, from wliich the 

 characters were chieliy drawn and which is the following. 



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

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

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

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

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

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

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

 triangular : capsule oblong, sessile, G lines long. — Proc. Am. Acad. xii. 27G. J/. 

 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. 



■1— +- Sjnir short, scarcely exceeding the sepals. 



G. H. hyperborea, K. Ihown. Stout, \ to 2 feet high, with the habit of 

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

 base, not connivent with tlie 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 {Brciocr) and in Kuby Valley, Nevada, 

 Watson. 



