8 
Willis.— The Evolution of Species in Ceylon , 
— a table exactly similar to Table III above, but with still lower average 
rarity (cf. Table XVI, Phil. Trans, paper). 
The same fact shows if one analyse the tables of rarity for the species 
Doona 1 
Stemonoporus 1 
Impatiens 
Semecarpus 
Eugenia 
Memecylon 
Hedyotis 
Symplocos 
Strobilanthes 
Amomum 
VC 
i 
1 
2 
Table VI. 
C RC RR 
I I 2 
— — 2 
3 
4 
4 
4 
5 
24 
1 
4 
4 
1 
1 
13 
3 
1 
5 
4 
4 
7 
_3 
28 
R 
4 
4 
3 
3 
2 
5 
5 
4 
4 
_5 
39 
VR 
3 
9 
4 
5 
13 
7 
8 
5 
8 
_3 
65 
ves, 
Total. 
Rarity. 
11 
4-6 
15 
5-4 
15 
4.2 
13 
4*3 
29 
4*4 
21 
4.6 
16 
4.8 
17 
4-5 
25 
4*4 
11 
4-7 
173 
4*5 
The rarity varies only between 4*2 and 5-4, i.e. is never so low as the 
mean of the whole flora (3*5), nor so high as strictly local (VR = 6). And 
taking the classes C to VR, there are only eight cases out of fifty where 
there are no representatives of a genus (3 C, 2 RC, 3 RR). 
We may even take the genera with from five to nine endemic species, 
and get, 
Table VII. 
RC 
VC 
Acrotrema 
Goniotkalamus 
Calophyllum 
Dipterocarpus 
Shorea 
Vitis 
Sonerila 
Psychotria 
Lasianthus 
Vernonia 
Palaquium 
Diospyros 
Gymnostachyum 
Actinodaphne 
Litsea 
Loranthus 
Phyllanthus 
Glochidion 
Dicotyledons 
Oberonia 
Liparis 
Bulbophyllum 
Cirrhopetalum 
Eria 
Saccolabium 
Habenaria 
Calamus 
Eriocaulon 
Carex 
Garnotia 
Monocotyledons 
Grand Total 
C 
1 
2 
1 
17 
1 
1 
1 
1 
2 
1 
1 
1 
3 
14 
2 
2 
1 
1 
2 
1 
1 
10 
RR 
1 
1 
1 
2 
2 
1 
2 
3 
22 
. 3 
1 
1 
2 
1 
2 
2 
R 
2 
2 
2 
3 
2 
3 
5 
1 
1 
2 
2 
2 
4 
2 
2 
4 
1 
40 
3 
1 
13 
1 22 24 35 
1 Endemic genera. 
4 
3 
1 
4 
17 
57 
VR 
3 
3 
2 
1 
2 
4 
3 
2 
1 
2 
3 
1 
2 
4 
3 
1 
37 
1 
3 
4 
1 
1 
1 
1 
5 
2 
1 
20 
57 
Rarity. 
4-8 
5*3 
4-2 
4-6 
4-6 
4*2 
5 ‘i 
5 ’ 1 
3*7 
3*3 
4*7 
4*7 
4- 6 
3*8 
3*8 
5 - o 
5 -i 
3* 
4*4 
4*7 
5*4 
5*6 
4-o 
3*8 
3*4 
4-6 
4*i 
5*4 
4-0 
4-8 
4*5 
4*5 
