BIBLIOGRAPHY 



413 



Wigand, A. (1871) 



[P- 37] 



Wight, R. (1849) 



[P- 99] 



Willdenow, C. L. 

 (1806) 



[P- 85] 



Willis, J. C. (1902) 



[Passim and Figs. 78, 

 p. 115, 80, p. 118, 82, 

 p. 121] 



Willis, J. C. (1914I) 

 [pp. 112, 286, 327, 

 329] 



Willis, J. C. (19142) 

 [P- 305] 



Willis, J. C. (1915I) 

 [p. 112] 



Willis, J. C. (19152) 

 [pp. 112, 327] 



Willis, J. C. (1917) 

 [p. 306] 



Nelumbium speciosum, W. Bot. Zeit. Jahrg. 29, 1871, 

 pp. 813-826, I text-fig. 



(An account of the development, morphology, anatomy and 

 starch distribution in this member of the Nymphaeaceae.) 



Conspectus of Indian Utriculariae. Hooker's Journal 

 of Botany and Kew Garden Miscellany, Vol. i. 1849, 



PP- 372-374- 



(The author records the occurrence of a whorl of floats below 



the flower in U. stellaris.) 



Determination of a new aquatic vegetable Genus, 

 called Caulinia, with general Observations on Water- 

 plants. Annals of Botany (edited by C. Konig and 

 J. Sims), Vol. II. 1806, pp. 39-51. 



(A translation of a paper by this author who was the first to 

 suggest that the pollination of Ceratophyllum was hydro- 

 philous.) 



Studies in the Morphology and Ecology of the 



Podostemaceae of Ceylon and India. Ann. Roy. Bot. 



Gard. Peradeniya, Vol. i. 1902, pp. 267-465, 34 pis. 



(An important general work dealing with the structure and 

 biology of this group.) 



On the Lack of Adaptation in the Tristichaceae and 



Podostemaceae. Proc. Roy. Soc. Vol. 87, B. 1914, 



PP- 532-550- 



(The detailed development of a thesis, to which the author has 



been led in the course of seventeen years' study of these families 



in India, Ceylon and Brazil namely, that the natural selection 



of infinitesimal variations is quite incompetent to explain their 



evolution.) 



The Endemic Flora of Ceylon, with Reference to 



Geographical Distribution and Evolution in General. 



Phil. Trans. Roy. Soc. London, Ser. B, Vol. 206, 



1914. PP- 307-342. 



(This paper does not deal with water plants, but is quoted 

 here because it is the first of the series of contributions in 

 which the author has developed his " Age and Area " hypothesis, 

 which has an important bearing on the study of aquatics.) 



A New Natural Family of Flowering Plants 

 Tristichaceae. Linn. Soc. Journ. Bot. Vol. 43, 1915, 



pp. 49-54- 



(A proposal to separate the Podostemaceae into two families 



Tristichaceae = Chlamydatae, and Podostemaceae =Achlamy- 



datae.) 



The Origin of the Tristichaceae and Podostemaceae. 

 Ann. Bot. Vol. xxix. 191 5, pp. 299-306. 

 (A reconstruction of the type of ancestor from which these 

 groups are probably derived.) 



The Relative Age of Endemic Species and other 



Controversial Points. Ann. Bot. Vol. xxxi. 191 7, pp. 



189-208. 



(See pp. 201, 202 for a consideration of the Podostemaceae and 



Tristichaceae from the point of view of the author's "Age and 



Area" Law of plant distribution.) 



