2f>4 CONTKIBUTIONS FROM THE NATIONAL HERBARIUM. 



3a. Tissa rubra perennans (Kindb.) Greene, Pittonia 2: 229. 1892. 



I^pigonum rubriim j^rennans Kindb. Monogr. 41. 1863. 



Spergularia rubra perennans Robinson in Gray, Syn. Fl. 1: 2.%. 1897. 



Type locality: Sweden. 



Range: Wa.sbington and Idalio to California. ^Europe. 



Specime.vs examined: Sat.s»ip, Heller 4026; Kalanm, Piper, October, 1901; Lake Park, 

 Piper 2126; Klickitat County, Brandegee 678; west Klickitat County, SuksdorfUd^l; 

 Stuart Island, iMiirence 196. 



4. Tissa diandra bracteata (Robinson). 



Spergularia salsnginfa bracteata Robinson in Gray, Syn. Fl. 1: 251. 1897. 



Type locality: Texas. 



Range: Washington to California and Texas. 



Specimens examined: West Klickitat County, Suksdorf 2082, 176; Egbert Springs 

 Sandberg tt Leiberg 346. 



Zonal distribution: Upper Sononin. 



PENTACAENA. 



1. Pentacaena ramosissima (Wcinm.) Hook. & Arn.; Hook. Bot. Misc. 3: 338. 1833. 

 Loefiingia ramosissima Weinin. liot. Zeit. 3: 608. 1820. 

 Paronychia? ramosissima DC. Prod. 3: 372. 1828. 

 Type ux-ality: "In apricia siccis Chili." 

 Range: Washington to California. Chile. 



Specimens examined: Westport, Heller 3939; Oyhut, Lamb 1262; Ilwaco, Piper. 

 Zonal distribution: Humid Transition. 



NYMPHAEACEAE. Waterlily Family. 



Leaves peltate; carpels several, l-.seeded Brabenia. 



Leaves cordate ; carpel 1 , mai.y-seeded Nymphaea. 



BRASENIA. 



1. Brasenia echreberi Gmel. Syst. Veg. 1: 853. 1796. Watershield. 



Hydropeltis purpurea Michx. Fl. 1 : 324. 1803. 



Brasenia peliata Pursh, Fl. 2: 389. 1814. 



Brasenia purpurea Casp. in Engl. & Prantl, Nat. Pfl. Fam. 3 2:6. 1888. 



Type locality : None given. 



Range: British Columbia to Nova Scotia, southward to California, Texas, and Florida. 

 Asia. Australia. Africa. 



Specimens examined: Lake Washington, Piper, July, 1895; Silver Lake, Henderson, 

 October, 1892; Davis Lake, Kreager 443. 



Zonal distribution: Transition. 



NYMPHAEA. 



1. Njmaphaea polysepala (Engelm.) Greene, Bull. Torr. Club 16: 84. 1888. Wokas. 



Nuphar polysepalum Engelm. Trans. Acad. St. Louis 2: 282. 1865. 



Type locality: "In small lakes, in the higher Rocky Mountains, from the sources 

 of the Platte, near Long's Peak, lat. 40°, to those of the Columbia River, lat. 44°." 



Range: Alaska to California and Colorado. 



Specimens examined: Oyhut, Lamb 1260; Falcon Valley, Suksdorf 46; Union Flat, 

 Lake & Hull 421 ; Big Meadows, Stevens County, Kreager 426. 



Zonal distribution: Transition to Hudsonian. 



The common form of this species has floating leaves, but in some lakes a form occurs in 

 which the leaf blade is held above the water. Forms with the outer sepals red-tinged 



