267 
1. Calcntta to Port Blair; implying introduction from Northern 
India and especially the Gangetic plain. 
2. Port Blair to Rangoon; implying introduction from Lower 
Burma. 
3. Port Blair to Madras; implying introduction from Southern 
India. 
4. Moulmein to Port Blair; implying introduction from Tenas- 
serim—a route used by native craft. 
5. Port Blair to the Nicobar Islands ; implying introduction from 
these—the Nicobars are a dependency of the Settlement at Port Blair. 
The distribution of the majority of these introduced species is so 
wide that (with the exception of 4 species whose introduction has al¬ 
most certainly been confined to the Rangoon or the Moulmein route 
and other 4 almost certainly restricted to the Madras or the Calcutta 
route) any one of them may have equally well reached the Settlement 
by any or all of these routes. This is best shewn by a tabular view of 
the species thus introduced. 
Table II. Distributional features of the Non-indigenous element in 
the Flora of the Andamans. 
CosmoDolitan in the Tronics. 
62 
Indigenous in the Old World . 
65 
In other continents besides Asia .. 
36 
Confined to Asia. 
29 
Throughout South-Eastern Asia . 
21 
Confined to India or only extending westward 
from India .. 
4 
Confined to Burma and Malaya or only extend¬ 
ing eastward thence .. 
4 
Indigenous in the Hew World, but now cosmopolitam or nearly so .. 
19 
It may therefore be concluded that there is a practical indifference 
displayed as regards route; here, as everywhere else, when man is en¬ 
gaged in cultivation he involuntarily introduces weeds, and here as else¬ 
where a certain proportion of the species introduced by him for economic 
or for aesthetic reasons escape and become spontaneous. 
It has been already said that the present Settlement occupies the 
site of an earlier one. This earlier settlement was founded under the 
47 
