862 ON THE NATURAL HISTORY OF MADAGASCAR. 
be, cannot well be supposed to be our plant. So that to refer to the 
habitats recorded in local Floras, lists, and guide-books, in the 
hope of obta taining thereby any idea - “ distribution of Brassica 
growing ne ar Bodmin, in Cornwall. So far as my opportunities of 
observing the plant allow me to state its distribution, it is as 
follows :—Brassica Briggsii was met with near the Land’s End; 
a 
away eastward on the road to Truro: its line of range of growth 
xtending from Yeo, et to the extreme west of Cornwall, a 
distance of over ninety miles 
ON THE NATURAL HISTORY OF MADAGASCAR. 
By J. G. Baxer, F.R.S. 
(Concluded from p. 338.) 
Chose AFFINITY OF THE Mapacascar FLora WITH THOSE OF 
MavRITIUS AND THE OTHER SMALL NEIGHBOURING IsLanps.—Between 
the flora of Madagascar and those of Mauritius, the Seychelles, 
Bourbon, and the Comoro group of islands, there is a close alliance. 
This may be best illustrated by examining the range of a few 
which are confined to the Mascarene group, but not entirely 
restricted to Madagascar alone. For instance, of the Rubiaceous 
genus Danais, a shrubby climber allied to Cinchona, there are four 
or five endemic species in Madagascar, one confined to Mauritius, 
and one to Rodriguez. Aphloia, with two or perhaps three species, 
grows in Madagascar, Mauritius, Bourbon, Rodriguez, and the 
Seychelles. Its neighbour Ludia grows in all ‘the same islands, and, 
in addition, has lately — detected by Sir John Kirk on the mainland 
opposite Zanzibar. Fwtidia, a curious anomalous genus of Myrtacee, 
is found in A pn Moctus, and Rodrigue ez. Obetia, a large 
stinging tree-nettle, figured by Gaudichaud in the beautiful atlas 
of plates illustrating the botany of the voyage of the ‘ Bonite,’ is 
found in Mauritius, Bourbon, Rodriguez, and Madagascar. Wed- 
dell Beg two. species, but _ Madagascar and Bourbon plant 
appear to me identical. amea, a genus of Scrophulariacee, 
named by Mr. Bentham ue King Radama, has one species in 
Madagascar, and a second in Galega — and the Seychelles. 
Phyllarthron, a very curious erect Bignoniad with articulated leaves, 
has four species in Madagascar and one in rahe Comoro group. Its 
neighbour sai named after Sir Lowry Cole, has six species in 
Madagascar, one in ree and one in the Seychelles. Stephano- 
daphne of Ballas. allied to Dais and Lasiosiphon of the Cape, has 
m 
in Madagascar, one in itius, one in 
Bourbon, one in tea Sreutien pil one that oa sore by the 
