CATALOGUE. 337 



TYPHACE^. 



Typha latifolia, L. From Florida to Canada, northward to the Arctic 

 Circle and west to Oregon and California. Frequent in Humboldt Valley, 

 Nevada, and in Salt Lake Valley ; 4,500 feet altitude. (1,127.) 



Spaeganium eurycarpum, Eng. From New England and Pennsylvania 

 to Canada, Great Slave Lake and the Missouri River. On the Humboldt 

 River, Nevada, and on the Jordan, Utah ; 4-4,500 feet altitude. (1,128.) 



Sparganium minimum, Bauh. From Northern New England, Pennsyl- 

 vania and Wisconsin to Canada, Newfoundland and Labrador ; in the Rocky 

 Mountains, latitude 58°, (Drummond ;) Unalaska and Behring Strait. Bear 

 River Canon, Uintas ; 8-10,000 feet altitude ; August. (1,129.) 



NAIADACE^. 



Zannichellia palustris, L. From Western Florida to New York, 

 Ohio and the Saskatchewan; oil "the Plains," (Hall;) from Western Texas 

 to Sonora, and northward on the Pacific Coast to the Columbia. Found in 

 Parley's Park in the Wahsatch ; 6,000 feet altitude ; July. (1,130.) 



PoTAMOGETON^ NATANS, L. Common in the Northern States and to Can- 

 ada, Hudson's Bay, Minnesota and the Saskatchewan ; reported also from 

 Arkansas, Texas, Northern Mexico, Northern California and Sitka. Col- 

 lected in Ruby Lake, Nevada, and in Weber River, Utah; 6,000 feet alti- 

 tude; August. (1,131.) 



PoTAMOGETON RUFESCENS, Schrad. From New England to Pennsylva- 

 nia and Illinois and northward to Hudson's Bay ; Unalaska. Found (the 

 submersed form) in the Uinta Mountains, on Bear River ; 8,000 feet altitude ; 

 August, scarcely in flower. (1,132.) 



PoTAMOQETON LONCHiTES, Tuck. New England to Illinois ; Texas, 

 (Drummond.) Humboldt Pass, Nevada, near the head of Humboldt River ; 

 6,000 feet altitude ; September, scarcely out of flower. (1,133.) 



PoTAMOGETON GEAMiNEUS, L., Var. HETEROPHYLLUS, Fries. North Car- 

 olina, and common northward to Canada, Hudson's Bay and the Saskat- 

 chewan; Arkansas, (Nuttall.) Ruby Lake, Nevada; 6,000 feet altitude; 

 August, in flower. (1,134.) 



PoTAMOGETON PERFOLIATUS, L., Var. LANCEOLATUS, Robbins. The SpC- 



'Tlle detertninationa and notes under this genus are due to Dr. J. W. Robbins. 

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