368 



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Foerste, A. F. (1889) 



[p. 216] 



Forel, F. A. (1901) 



[P- 255] 



Forel, F. A. (1892- 

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[pp. 253, 278] 



Frank, A. B. (1872) 

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Botanical Notes. Bull. Torr. Bot. Club, Vol. xvi. 

 1889, pp. 266-268, I pi. 



(On p. 266 there is a note on the adventitious buds which arise 

 from the base of the submerged leaves in Nasturtium lacustre. 

 In this species marked heterophylly occurs, the submerged 

 leaves being pinnately dissected and the air leaves simple.) 



Handbuch der Seenkunde. AUgemeine Limnologie 



(Bibl. Geog. Handbiicher herausgegeben von F. 



Ratzel). Stuttgart, 1901. 



[This general treatise on Limnology contains a chapter (pp. 

 161-24 1) on the biology of lakes.] 



Le Leman. Monographic limnologique. 3 vols. 



Lausanne, 1904. 



(This elaborate monograph of the Lake of Geneva throws much 

 light on the physics and chemistry of fresh waters. The Biology 

 of the Lake is dealt with in Vol. iii. pp. 1-408.) 



Ueber die Lage und die Richtung schwimmender 

 und submerser Pflanzentheile. Cohn's Beitrage zur 

 Biologic der Pflanzen, Bd. i. (1870-1875) Heft 2, 

 1872, pp. 31-86. 



[This memoir is the record of a series of experiments which the 

 author undertook in order to examine the influences which 

 regulate the position and direction of floating and submerged 

 leaves. He chiefly employed Hydrocharis, Trapa and Callitnche. 

 For criticisms of the work see Karsten, G. (1888) and Vries, H. 

 de (1873).] 



Beitrage zur Kenntniss einiger Arten der Gattung 



Ranimciiliis . Bot. Centralbl. Bd. xli. 1890, pp. 1-6. 



(On p. 5 the author gives some observations on the pollination 

 of the aquatic species of Ranunculus.) 



Kiirzere briefliche Mittheilungen. Ueber Avena, 

 Datura und Nymphaea. Bot. Zeit. Jahrg. 16, 1858, 



P- 73- 



[These notes contain the record of the occurrence in a lake in 

 Sweden (Fagersj<i in Nerike) of a (Nymphaea) Castalia with 

 rose-purple flowers, which is regarded by the author as a 

 variety of C. alba.] 



Notes on Pondweeds. 6. On Land-forms of Potamo- 

 geton. Journ. of Bot. Vol. xxv. 1887, pp. 306-310. 



(This paper forms one of a series of contributions made by 

 the author to the study of this group, the majority of which 

 are not included in this bibhography, as their interest is almost 

 exclusively systematic. In the present paper the land forms 

 of Potamogeton iiataiis, P. fluitaiis, P. plantagineus , P. hetero- 

 pkyllus and P. Zizii are described.) 



Fryer, A., Bennett, A. The Potamogetons (Pond Weeds) of the British Isles. 



and Evans, A. H. x + 94 pages, 60 pis., 2 text-figs. London, 1898-1915. 



(1898-1915) (A systematic monograpn of the genus, as far as it is represented 



[PP- 58, 195. '5^31 '"^ Britain, with fine coloured plates by R. Morgan.) 



Freyn, J. (1890) 



[p. 228] 



Fries, E. (1858) 



[p. 276] 



Fryer, A. (1887) 

 [pp- 195. 3>i^] 



