340 BOTANY. 



lected iQ the brackish waters of the Lower Humboldt, with P. pectinatus 1 

 (1,139 and 1,141,) may also rather belong here; August. (1,146.) 



ALISMACEiE. 



Teiglochin palustee, L. From New York and Pennsylvania to IIH- 

 nois; Labrador; on the Saskatchewan; Colorado, (Hall & Harbour ;) Sitka. 

 Jordan Valley, near Salt Lake City. (1,147.) 



Triglochin maeitimum, L. Northern States to Labrador and the Arctic 

 Circle, and westward to Sitka, Oregon and California, Utah and Colorado. 

 Frequent in alkaline and saline marshes and meadows through Nevada and 

 Utah; May-July. 1-3° high; capsules varying from oval to narrow-oblong,, 

 more or less winged. (1,148.) 



Alisma Plantago, L., Var. Ameeicanum, Gray. From Georgia to 

 Canada and the Saskatchewan, westward to Arkansas and the base of the 

 Rocky Mountains ; Northern California to Washington Territory. On the 

 Truckee River. (1,149.) 



Var. With very narrow leaves, 3-6" wide, attenuate at base into a peti- 

 ole 4-6' long. (1,150.) 



Sagittakia vaeiabilis, Eng. From Newfoundland to Florida and west 

 to Texas, New Mexico, Northern California and the Saskatchewan. On the 

 Truckee River and Lake Washoe, Nevada, and in Salt Lake Valley. Uni- 

 formly with broad sagittate leaves, 2-6' long, the width equaling half the length 

 or more. (1,151.) 



ORCHIDACE^. 



Habenaeia hypeeboeeAj Br. From the northern Border States and 

 Canada to Greenland, the Arctic Circle and Unalaska, in the Saskatchewan 

 region and Washington Territory, and southward in the mountains to Califor- 

 nia (?) and Colorado. Ruby Valley, Nevada, and in canons of the Wahsatch 

 and Uintas ; 4,500-8,000 feet altitude ; July, August. 1-3° high ; spikes 

 usually rather loosely flowered, 4^18' long; flowers smaller than in any of 

 the allied species, more or less greenish, the posterior sepal somewhat hooded 

 at the apex, broadly ovate, li-2" long, 1-1 i" broad ; lateral sepals somewhat 

 longer and narrower, 2-2 J" long, ^1" wide; petals smaller, lJ-2" long, 

 i-l" wide ; lip narrow-oblong, usually but slightly broader toward the base, 

 2-3" long, 1" broad ; spur 2-3" long. (1,162.) 



Habenaeia dilatata, Gray. Very near the last, but probably distinct ; 



