BIBLIOGRAPHY 



413 



Wigand, A. (1871) Nelumbium speciosum, W. Bot. Zeit. Jahrg. 29 1871 

 [P- 37] PP- 813-826, i text-fig. 



(An account of the development, morphology, anatomy and 

 starch distribution in this member of the Nymphaeaceae.) 



Wight, R. (1849) Conspectus of Indian Utriculariae. Hooker's Journal 



[P- 99] of Botany and Kew Garden Miscellany, Vol. i. 1849, 



PP- 372-374- 



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

 the flower in V. steUaris.) 



Willdenow, C. L. Determination of a new aquatic vegetable Genus, 



(1806) called Caulinia, with general Observations on Water- 



[p- 85] 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 Ccratophyllum was hydro- 

 philous.) 



Willis, J. C. (1902) Studies in the Morphology and Ecology of the 



[Passim and Figs. 78, Podostemaceae of Ceylon and India. Ann. Roy. Bot. 



p. 115, 80, p. 118, 82, Gard. Peradeniya, Vol. i. 1902, pp. 267-465, 34 pis. 



p. I2l] (An important general work dealing with the structure and 



biology of this group.) 



Willis, J. C. (I9I4 1 ) On the Lack of Adaptation in the Tristichaceae and 



[pp. 112, 286, 327, Podostemaceae. Proc. Roy. Soc. Vol. 87, B. 1914, 



329] 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.) 



Willis, J. C. (i9i4 2 ) The Endemic Flora of Ceylon, with Reference to 

 [p- 305] 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.) 



Willis, J. C. (I9I5 1 ) A New Natural Family of Flowering Plants 

 [p. 112] 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.) 



Willis, J. C. (I9I5 2 ) The Origin of the Tristichaceae and Podostemaceae. 

 [pp. 112, 327] Ann. Bot. Vol. xxix. 1915, pp. 299-306. 



(A reconstruction of the type of ancestor from which these 



groups are probably derived.) 



Willis, J. C. (1917) The Relative Age of Endemic Species and other 

 [p. 306] Controversial Points. Ann. Bot. Vol. xxxi. 1917, 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.) 



