492 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Rance: Temperate North America. 
SPECIMENS EXAMINED: Lakeview, Henderson, July 25, 1892; Ellensburg, Whited 566, 
1450; North Yakima, Watt August, 1895; Henderson, June 18, 1892; Alma, Elmer 543; 
Rock Lake, Lake & Hull 602; Spokane, Piper, October 1, 1900; Usk, Kreager 354; Seattle, 
Piper. 
ZONAL DISTRIBUTION: Transition. 
MENTHA. Minr. 
Whorls of flowers all axillary.............-.-.--------------------- 3. M. canadensis. 
Whorls of flowers in terminal spikes, or some in the upper axils. 
Leaves lanceolate, sessile or nearly so; spikes slender....-.-.-..--- 1. M. spicata. 
Leaves ovate, petioled; spikes thick...........-..-------------- 2. M. citrata. 
1. Mentha spicata L. Sp. Pl. 2: 576. 1753. SPEARMINT. 
Type Locauitry: “Habitat in Dania, Germania, Anglia, Gallia.”’ 
SPECIMENS EXAMINED: North Yakima, Watt August, 1895; White Salmon, Suksdorf. 
la. Mentha spicata viridis L. Sp. Pl. 2: 576. 1753. 
TyPE LocaLity: European. 
SPECIMENS EXAMINED: Seattle, Piper; Vancouver, Piper; White Salmon, Suksdorf. 
2. Mentha citrata Ehbrh. Beitr. 7: 15). 1792. 
Type Locaity: ‘“ Europa.” 
SPECIMENS EXAMINED: Tacoma, Fett 155. 
3. Mentha canadensis L. Sp. Pl. 2: 577. 1753. 
Tyre cocaity: “Habitat in Canada.” 
Rance: British Columbia to New Brunswick, south to California and Virginia. 
SPECIMENS EXAMINED: Clallam County, Elmer 2545; Seattle, Piper mi 1885; Tacoma, 
Flett 874; Coulee City, Lake & Hull, August 6, 1892; McKay 16; North Yakima, Watt 
August, 1895; without locality, Vasey in 1889; Meyers Falls, Kreager 506; Spokane, 
Dewart, July 15, 1901; Piper, September 1, 1900; Prosser, Cotton 654; Clealum Lake, 
Cotton 842; Mabton, Cotton 748. 
ZONAL DISTRIBUTION: Transition. 
3a. Mentha canadensis borealis (Michx.). 
Mentha borealis Michx. F]. 2: 2. 1803. 
Mentha canadensis glabrata Benth. Lab. 181. 1833. 
Mentha arvensis perardi Briq. Bull. Herb. Boiss 3: 215. 1895. 
Type Locatiry: “Hab. juxta amnes ad sinum Hudsonis defluentes.”’ 
Rance: British Columbia to Saskatchewan, south to Colorado and California. 
SPECIMENS EXAMINED: Chehalis River, Lamb 1235; Silverton, Bouck 146a; Skamania 
County, Suksdorf 1000; Falcon Valley, Suksdorf 663, 664; Colville, Lyall in 1860; Lake 
Chelan, Lake & Hull 601; Pullman, Lake cd Hull 601; without locality, Vasey in 1889; 
Kreager 481; 557, 446; Seattle, Piper, August, 1892. 
ZONAL DISTRIBUTION: Transition. 
3b. Mentha canadensis lanata (Piper). 
Mentha arvensis lanata Piper, Bull. Torr. Club 29: 223. 1902. 
Type Locauity: Parrott, Lincoln County, Washington. Collected by Lake & Hull. 
Rance: Washington and Idaho to California. 
SPECIMENS EXAMINED: Wilson Creek, Lake & Hull, August 5, 1892; Parrott, Lake & 
Hull 603; Rock Lake, Lake & Hull 601; Newport, Kreager, August 11, 1902; Mount 
Carlton, Kreager 295. 
