XXi1V 
INTRODUCTION. 
Mexico approaching the 320 species of Acacia and 120 of Eucalyptus in Australia, 
and the 300 species of Mesembryanthemum and about 500 of Erica in South Africa, 
that is to say in point of numbers or as a feature in the whole vegetation, except the 
genus Micus. 
Dendrobium . 
Strobilanthes 
Eugenia 
Carex . 
Impatiens 
Ficus . 
Habenaria 
Panicum .. 
Quercus . 
Cyperus 
Crotalaria 
Vitis 
Eria . . 
Astragalus 
Polygonum . 
Bulbophyllum . 
Litsea 
Begonia 
Symplocos 
Senecio 
Diospyros 
Glochidion 
Loranthus 
Hedyotis . 
Ipomeea 
Phyllanthus . 
Fimbristylis . 
Psychotria 
Lasianthus 
Euphorbia 
Justicia 
Calamus . 
Andropogon . 
Desmodium . 
Ceelogyne. 
Vernonia . 
British Indian Genera of twenty-five Species and upwards. 
. 158 
. 146 
. 181 
. 131 
. 124 
. 112 
. 100 
92 
82 
80 
77 
75 
73 
70 
70 
70 
. 65 
. 64 
. 64 
63 
59 
59 
58 
57 
57 
56 
53 
52 
52 
52 
50 
50 
50 
AQ 
AY 
AB 
Ardisia 
Piper . 
Mallotus . 
Sonerila . 
Rhododendron . 
Primula . 
Jasminum 
Rubus. 
Elzocarpus . 
Indigofera 
Memecylon . 
Didymocarpus . 
Potentilla 
Saussurea 
Hoya . 
Oberonia . 
Leucas 
Bauhinia . 
Ixora . 
Gentiana . 
Pedicularis 
Liparis 
Smilax 
Grewia 
Blumea 
Ceropegia 
Calanthe . 
Saxifraga . 
Amomum 
“Premna 
Hibiscus . 
Nepeta 
Pollinia 
Plectranthus. 
Antidesma 
Sterculia . 
45 
45 
45 
43 
43 
43 
43 
41 
40 
40 
40 
40 
39 
39 
39 
39 
38 
37 
37 
37 
37 
37 
37 
36 
36 
36 
36 
35 
35 
34: 
33 
33 
33 
32 
32 
31 
Ophiorrhiza . 
Capparis . 
Garcinia . 
Swertia 
Myristica . 
Saccolabium . 
Hedychium . 
Scirpus 
Baccaurea 
Ischemum. . 
Ebermaiera . 
Aporosa 
Salix 
Aneilema . 
Euonymus 
Anaphalis 
Artemisia. 
Solanum . 
Cleistanthus . 
Croton 
Macaranga 
Cirrhopetalum . 
Osbeckia . 
Barleria 
Cinnamomum 
Juncus 
Allium. 
Eriocaulon 
Polyalthia 
Argyrela . 
Pogostemon . 
_Globba 
Ariseema . 
Arundinella . 
Eragrostis 
Bambusa . 
Totals: genera 108; species 5041. 
31 
30 
30 
30 
30 
30 
30 
30 
29 
29 
28 
28 
28 
28 
27 
27 
27° 
27 
27 
27 
27 
27 
26 
26 
26 
26 
25 
26 
25 
25 
25 
25 
25 
25 
25 
25 
From these figures it appears that about 4°8 per cent. of the total number of genera 
