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Selected References 



Cronquist, A., A. H. Holmgren, N. H. Holmgren, J. L. Reveal and 

 P. K. Holmgren. 1977. Intermountain flora. Vascular 

 plants of the intermountain west, U. S. A. Vol. 6. 

 Columbia Univ. Press, New York. 584 pp. 



Fassett, N. C. 1957. A manual of aquatic plants. With 

 revision appendix by E. C. Ogden. Univ. Wisconsin Press, 

 Madison. 405 pp. 



Fernald, M. L. 1932. The linear-leaved North American species 

 of Potamogeton section Axillares . Mem. Amer. Acad. Arts 

 17: 1-183. (Mem. Gray Herb. No. 3) 



Fernald, M. L. 1950. Gray's manual of botany. 8th ed . 

 American Book Co., New York. 1632 pp. 



Hagstrom, J. 0. 1916. Critical researches on the Potamogetons . 

 Kongl. Svenska Vetenskapsakad . Handl. 55(5): 1-281. 



Haynes, R. R. 1974. A revision of North American Potamogeton 

 subsection Pusilli (Potamogetonaceae) Rhodora 76: 564-649. 



Haynes, R. R. 1978. The Potamogetonaceae in the southeastern 

 United States. J. Arnold Arbor. 59: 170-191. 



Haynes, R. R. and D. C. Williams. 1975. Evidence for the 

 hybrid origin of Potamogeton longil igulatus 

 (Potamogetonaceae). Mich. Bot. 14: 94-100. 



Hellquist, C. B. 1972. Range extensions of vascular aquatic 

 plants in New England. Rhodora 74: 131-141. 



Hellquist, C. B. 1975. Correlation of selected dissolved 



substances and the distribution of Potamogeton in New 



England. Ph. D. dissertation. University of New 

 Hampshire. 269 pp. 



Hellquist, C. B. 1977. Observations on some uncommon vascular 

 aquatic plants in New England. Rhodora 79: 445-452. 



Hellquist, C. B. 1978. Potamogeton gramineus with adnate 

 stipules. Rhodora 80: 591-593. 



Hodgdon, A. R. , M. P. Giguere, S. B. Krochmal, and A. Riel. 

 1952. New Potamogeton records in New Hampshire. Rhodora 

 54: 237-246. 



Klekowski, E. J. and E. 0. Beal. 1965. A study of variation 

 in the Potamogeton capillaceus -- diversif ol ius complex 

 (Potamogetonaceae). Brittonia 17: 175-181. 



Metcalf, F. P. 1931. Wild-duck foods of North Dakota lakes. 

 Tech. Bull. U.S.D.A. Bull. No. 221. 72 pp. 



