3^7 
New Zealand Flora , zvilh a Reply to Criticism. 
shrubs than in herbs. ‘ Swamped * and unswamped genera behave alike in 
their distribution through New Zealand. Swamping is rare in the Ferns, 
which on the whole must be old. 
Finally, it is shown that the wides with endemics are on the whole 
probably older than those without. 
Literature quoted. 
1. Berry, E. W. : A Note on the Age and Area Hypothesis. Science, vol. xlvi, 1917, p. 539. 
2. Copeland, E. B. : Natural Selection and the Dispersal of Species. Phil. Journ. Sci., vol. xi, 
1916, p.147. 
3. Coulter, M. C. : Review in Bot. Gaz., May, 1917, p. 419. 
4 . de Vries, H. : L’evolution des etres organises, par sauts brusques. Scientia, vol. xix, 1916, No. 1. 
5. --- : The Origin by Mutation of the Endemic Plants of Ceylon. Science, vol. xliii, 
* 916 , P- 785. 
6* --: The Distribution of Endemic Species in New Zealand. Science, vol. xlv, 
1917, p. 641. 
7 . Lotsy, J. P.: Die endemischen Pflanzen von Ceylon, und die Mutationshypothese. Biol. 
Centr., vol. xxxvi, 1916, p. 207. 
8. Macdougal, D. T.: Review in Plant World, 1916, p. 79. 
9. Small, J. : The Age and Area Law. Sci. Progr., Jan. 1918, p. 439. 
10 . SlNNOTT, E. W.: Comparative Rapidity of Evolution in various Plant Types. American 
Naturalist, vol. 1, 1916, p. 466. 
It*-—— : The Age and Area Hypothesis and the Problem of Endemism. Ann. 
of Bot., vol. xxxi, 1917, p. 209. 
12 . ---: The Age and Area Hypothesis of Willis. Science, vol. xlvi, 1917, p. 457. 
13 . - and Bailey, I. W. : The Origin and Dispersal of Herbaceous Angio- 
sperms. Ann. of Bot., vol. xxviii, 1914, p. 547. 
14 . -: Foliar Evidence as to the Ancestry and Climatic Environment of the 
Angiosperms. Amer. Journ. Bot., vol. ii, 1915, p. 1. 
15. Willis, J. C. : Catalogue of Ceylon Plants. London, 1911. 
16 . —-- : The Floras of Hill-tops in Ceylon. Ann. R. B. G. Perad., vol. iv, 1908, p. 131. 
17 . -: The Endemic Flora of Ceylon. Phil. Trans., B., vol. ccvi, 1915, p. 307 
(and correction in Proc. Roy. Soc., B., vol. lxxxix, 1916). 
18 . -—• : The Evolution of Species in Ceylon. Ann. of Bot., vol. xxx, 1916, p 1. 
19 . -: The Distribution of Species in New Zealand. Ann. of Bot., vol. xxx, 1916, 
P* 437 * 
20 . ---: The Relative Age of Endemic Species, &c. Ann. of Bot., vol. xxxi, 1917, 
p. 189. 
21 . --—-: The Distribution of the Plants of the Outlying Islands of New Zealand. 
Ann. of Bot., vol. xxxi, 1917, p. 327. 
-: Further Evidence for'Age and Area ; its Applicability to the Ferns, &c. Ann. 
of Bot., vol. xxxi, 1917, p. 335. 
22 . 
