BAXIFBAQACBM. 413 



order placed near Cucurhitacea, Cactacea, Crassidacea, and Saxi- 

 fragacece. We place it in the last, forming a series which links the 

 order to the series Saururea in Piperacece, and to Urticacece. The 

 genus Tetraneles was added in 1826, 1 and Octomeles in 1SG0. 2 



In 1846 Lindley estimated the number of species in the genera 

 that we admit in this order at 760. 3 Bentham and Hooker at the 

 present day admit in their Genera some 717, thus distributed: Saxi- 

 fragacea proper 542 ; Pent/tores 2 ; Hamamelidea 30 ; Bruniecb 40 ; 

 Pittosjjorea 90 ; Datiscea 4. 4 To give the geographical distribution 

 in detail is here impossible ; for in no region of the globe are the 

 Saxifrages unrepresented, They are fewest in the Tropics, and in 

 South Africa and Australia. But these are the chief localities for 

 Cunoniece, which also occur in numbers in all hot countries, chiefly 

 represented by species of Weinmannia. Cunonia, formerly restricted 

 to the Cape, is also found in abundance in New Caledonia. In 

 America the numerous species of Weinmannia extend northwards 

 some way into Mexico, and southwards into the south of Chili ; and 

 in the Old World, as far as New Zealand and the Cape. The 

 Escallonies are almost entirely confined to South America, especially 

 the genus Escallonia, which has not been found elsewhere. The 

 Hydrangea abound in the temperate regions of Asia and America ; 

 and Siebold & Zuccarini thought that only two species of Hyd- 

 rangea belonged to the Northern Hemisphere. 5 Philadeljdies, Saxi- 

 frages, Datisca, and Bides comprise the only types found in Europe. 

 They are numerous in Japan, Temperate India, and North America. 

 The series PentJiores is represented by one species in China, and 

 another in North America. The only known Ceplialotus, and the 

 whole genus Bauer a are Australian. The Bruniece are all natives of 

 South Africa. The llamamelidece, widespread in tropical 6 and 

 temperate Asia, South Africa, and North America, were hitherto 



184. — Ad. Be., Fnum., 106, fam. 219.— B. H., iece, 6; Pittosporece, 78; Francoece, 5; Altin- 



Gen., 844, ord. 76. giece, 3; Platanece, 6; Datiscece, 4. 



1 R. Be., loc. tit. ; Misc. Works (ed. Benn.), 4 We must add five species for Platanece, the 

 i. 285. number adopted in the most recent publications 



2 Miq., Fl. Ind.-P.at., Suppl., 336. on this group. 



3 Namely : Saxifragece, 310; Cunoniece, 100; 5 True, the South American Cornidias had not 

 Hydrangea, 45 ; Penthorece, 2 ; Ceplialotece, 1 ; yet been recognised as Hydrangeas. 

 Parnassiem, 12; Hamamelidea, 15; Bruniece, 6 Including the one species of Rhodoleia from 

 66; Philadelphecc, 53; Escalloniece, 60 ; Prex- Sumatra. 



