Aquatic Vascular Plants of New England: 

 Part 2. Typhaceae and Sparganiaceae 



by 

 G. E. Crow and C. B. Hellquist 



INTRODUCTION 



This is the second in a series of reports on the aquatic and wetland 

 flora of New England. The first part treated the Zosteraceae, Pota- 

 mogetonaceae, Zannichelliaceae, and Najadaceae (N.H. Agric. Exp. 

 Sta. Bull. 515, January 1980). 



A treatment of the aquatic and wetland plants of the New England 

 region has long been needed. The manual is being prepared to aid 

 conservationists, fish and game personnel, consultants, botanists and 

 students in the identification of aquatic plants. The coverage is strictly 

 New England but is of value throughout the northeast. Data have been 

 gathered from herbaria in New England and from personal field work. 



Chemical data presented have been gathered from many waters 

 throughout New England. The alkalinity readings are total alkalinity, 

 expressed as milligrams per liter (mg/1) CaCOg. Since pH and alkalin- 

 ity vary greatly during the day, the values are only indicative of the 

 water qualtiy. Chloride values are given where data are available and 

 of value. 



The rare and endangered plant lists referred to are those prepared 

 for each of the six New England states by the New England Botanical 

 Club in cooperation with the United States Fish and Wildlife Service, 

 Office of Endangered Species, Newton Corner, MA (RI — Church and 

 Champlin, 1978; MA — Coddington and Field, 1978; VT — Country- 

 man, 1978; ME — Eastman, 1978; CT — Mehrhoff, 1978; NH — Storks 

 and Crow, 1978). 



We invite comments and/or criticisms on this treatment. Informa- 

 tion on any species omitted or any known localities not documented by 

 us will be welcomed. If anyone is interested in specific localities of any 

 of the species indicated on the dot maps, please contact us. 



Dr. G. E. Crow, Department of Botany and Plant Pathology, Nesmith Hall, Univer- 

 sity of New Hampshire, Durham, NH 03824. 



Dr. C. B. Hellquist. Department of Biology, Boston State College, 625 Huntington 

 Avenue, Boston, MA 02115. 



