Several species of Australian genera, myrtacete, the leptospermunr, Ba ckia, and metrosideros, are found in the Malay Peninsula. The Eastern Archipelago tyro forme tho bulk of the flora of all tire perennially humid regions of indla, the Khassya the Upper Assam valley, the forests of tire base of the Himalaya from the Itrah maputra to Nepal, the Malabar coast, Ceylon, and the whole of theMalmyau many of time plants being identical with Javanese mountain species. Gualtheria nummularia ranges from the N.N. Himalaya to Java; and the more conspicuous of the trees common to Java and India arc time Scdgwickia Griffith, which is un doubtedly the Liquidamber altingia, IiGcmc, Marlea, extending from China to Kashmir. The curious Cardiopteris lobata of Java is also a native of Assam; and several oaks and chestnuts, anti dessm u, a willow, and myrica, are common to Khassya and Java.
'I'he Chinese type is abundant in the temperate regions of the Iimalaya, extending westward to Garhwal and Kamaon, but is most fully developed in Sikkim, Bhutan, and the Khassya, and, as examples, are species of aucuba, Hclwingia, sta chyurus, enkianthus, Abelia, Skiminia, Adamia, Ben thamia, and corylopsis, all of them genera that have been regarded almost exclusively Japanese and Chinese; also Micropteleaparviflora,Hamma melis Chinensis, Nymphst pygrnaca, Vaccinium braeteatum, Quercus serrata, ilhcium, then, mag nolia, the sehizandreae, lardizabalen, camellia, deutzia, viburnum, Corneae, Houttuynia, Bow ringia, Wikstrmmia, dapbne:e, Henslovia, seeps, antidesma, Benthamia, Goughia. Euryale ferox,
which is wild in the Gangetic delta, and is found as far westward as Kashmir, is abundant in China; and Nepenthes phyllamphora, a native of the Khassya mountains, is also found at Macao and eastward to the Louisiado Archipelago.
European forms abound in India. 222 British plants extend into India; and a multitude of mountain plants, and many of the most con ones of Europe, range from the coasts of the Levant and the Black Sea to the Himalaya, as Corylus column, Quercus ilex, Ulmus cam pestris, Celtis Australis, C. orientalis. Few European species, comparatively, extend into Nepal, and still fewer occur in Sikkim.
Egypt, southern Arabia, the warmer parts of Persia, Baluchistan, Sind, and the Panjab, have a remarkable similarity of climate. Many North African or Arabian forms extend throughout all time drier parts of India. Others are restricted to northern and western India; and though tropical Asia and Africa are separated by a vast expanse of ocean, there is a great similarity in the families of the trees and shrubs; and an affinity can ho traced between the mountain vegetation of western tropical Africa and that of the pen insular chain.—Royle on the Prnilhactire Iksources of Tudia; 1I'ight's Prodromus Flora' Indiex; Hooker ct Thomson's Introductory Essay to the Flora Indica; Aaru$y Origin of Species; 1Valluce; Ind. Ann. ,lied. Science.