& 
xx INTRODUCTION. 
natural orders represented in each of the areas under consideration, especially in India, 
where there are 86 per cent. of the orders retained by Bentham and Hooker. This 
is not put forward as something new, though it will be new to most people, but it 
comes out more strongly than might have been anticipated. It should be mentioned, 
too, that British India covers only a portion of one of the primary botanical regions, 
though, on the other hand, the upper belt of vegetation of the Himalayas belongs to 
the northern region. Let us pursue the ordinal distribution a little further, premising 
that the reader will remember that important particulars not given here may be found 
in the Appendix. 
1. Natural Orders not known to be represented in British India *. 
Calycanthacee. Bruniacez. Leitneriez. 
Sarraceniacez. Loasaceze. Lacistemacez. 
Cistacee. Turneracez ft. Empetracee. . 
Canellaceze. Calycereze. Bromeliacez. 
Tremandrez. Lennoacez. Mayacez. 
Vochysiacez. Columelliacez. Rapateacez. 
Chlenacez. Myoporinee. Cyclanthacee. 
Humiriaceee. Batidese. Centrolepidez. 
Cyrillacee. Penzeacee. Restiacee. 
Stackhousiacee. Balanopsez. . 
2. Natural Orders not known to be represented in any part of America t. 
Pittosporeze. Moringesze §. Balanopsez. 
Tremandree. Dipsaceze. Casuarinez §. 
Dipterocarpez. Salvadoracez. Philydracez. 
Chleenaceze. Nepenthacez. Flagellariez. 
Stackhousiacez. Penzacee. Pandanacez §. 
3. Natural Orders not known to be represented in Australia. 
Calycanthacez. Canellacez. Chailletiacez. 
Berberidacez. Vochysiacee. Cyrillaces. | 
Sarraceniacez. Tamariscines. Sabiaceze. 
Fumariaces. Dipterocarpeze. Coriariez. 
Resedacez. Chlenacez. Moringee. 
Cistacez. Humiriacez. Bruniacez. 
* Those orders printed in italics are represented in some part of Asia. Forty-one natural orders are not 
known to be represented in Mexico: see the table in vol. iv. pp. 171-200. A Drosera, received at Kew from 
British Honduras, as this was going to press, reduces this number to forty. 
Tt Turnera ulmifolia is extensively colonized in India. 
{ In the table referred to the Selaginew are indicated as not American; but one or two Asiatic species of 
Gymnandra (Lagotis) recur in the extreme north-west of America. 
§ These orders, and perhaps some others, are represented by colonized species. 
