364 ON THE NATURAL HISTORY OF MADAGASCAR. 
in the Seychelles and one in Madagascar, but the order does not 
reach Mauritius, Bourbon, or the African continent. Of Tam- 
rissa, in Monimiacee, there are about a dozen species divided 
between Madagascar and Mauritius, and one in Java. Of the 
scandent Asclepiadeous genus St sine gp Ai species of which, 
with its clusters of tubular pure white waxy flowers, is a great 
ornament of our conservatories, there are five species in Mada- 
gascar, and five in the Malay archipelago and South China. Of 
Strongylodon, in Phaseolea, there are four species: one in Polynesia, 
one in the New Hebrides, a third in Ceylon, and a fourth in Mada- 
gascar. Of the Lagerstromia, in Lythracee, there are 18 species in 
joer Asia, concentrated in Birma, and one has lately been 
covered in the hill-country of Central Madagascar. Hernandia 
e 
oup, but fails to reach the African continent. Other Asiatic 
species sath in Madagascar, but not in Continental Africa, are 
Afzelia aeorre ecm Pongamia glabra, ae juga, and Barringtonia 
speciosa en the flora of the whole tropical zone is s 
Taoaiciioaitth in sis general character, it oes not seem to me either 
safe or necessary to assume a comparatively bolas land-connection 
7 ne eee with India and Malaya to account for a few cases of 
AFFINITY OF THE FLORA OF THE HILL-counTRY oF CenTRAL Mapa- 
GASCAR WITH THOSE OF THE CAPE AND MOUNTAINS OF CENTRAL AFRICA. 
—There are many curious cases of affinity between the flora of the 
hill-country of Central Madagascar and those of the Cape and the 
mountains of Central Africa. Many of the groups and genera 
r 
gascar, as they arein the mountains of Abyssinia, Angola, Guinea and 
the Zambesi country by species closely allied to, but not absolutely 
identical with, those of their head- ee arters. At the Cape there are 
upwards of 500 heaths. In Central Madagascar there are about a 
dozen species—one Fricinella and the rest Philippias. The Selaginee 
are represented by a single endemic species, Selago muralis of 
Dilobeia; the special Cape ferns by Mohria caffrorum, Cheilanthes 
hirta, Pellwa calomelanos and P. hastata; the Cape saprophytic 
Scrophulariacee by Aleetra purieinclctinrs and Harveya obtusifolia ; the 
Cape orchids by species of Disa and Satyrium ; and the Cape Thyme- 
lacee 3 species of Dais and Lasiosiphon. Other characteristically 
Cape genera, represented by one or two endemic species in Central 
Madagascar, are sh ea Anthospermum, Diclis, st Ha 
and Streptocarpus. There are a few curious 7 in which charac- 
teristically temperate Saaes reach Central Madagascar, or a 
Madagascar species reappears at the Cape and amongst the Central 
African mountains. Amongst the nanan Cryptogamia of Central 
Madagascar are Asplenium Trichomanes, Nephrodium Filia-mas, 
Aspidium aculeatum, Pteris aquilina aa PB; cretica, Lycopodium 
