Plants in their Relation to Others. 
507 
Malpighiaceae, Violaceae ; with 4, Amarantaceae, Ochnaceae, Piperaceae ; 
with 3, Caprifoliaceae, Cyperaceae, Dilleniaceae/Lecythidaceae, Lythraceae, 
Marantaceae, Nyctaginaceae, Passifloraceae ; with 2, Amaryllidaceae, Aqui- 
foliaceae, Balanophoraceae, Balanopsidaceae, Begoniaceae, Bromeliaceae, 
Dioscoreaceae, Epacridaceae, Geraniaceae, Globulariaceae, Linaceae, 
Magnoliaceae, Orobanchaceae, Papaveraceae, Polygonaceae, Portulacaceae, 
Rafflesiaceae, Ranunculaceae, Staphyleaceae, Turneraceae, Winteranaceae ; 
with 3, Aizoaceae, Berberidaceae, Cactaceae, Cercidiphyllaceae, Chloran- 
thaceae, Cneoraceae, Cochlospermaceae, Combretaceae, Commelinaceae, 
Connaraceae, Corynocarpaceae, Crassulaceae, Cycadaceae, Datiscaceae, 
Diapensiaceae, Ebenaceae, Flagellariaceae, Frankeniaceae, Gonystilaceae, 
Goodeniaceae, Hippocrateaceae, Hydrophyllaceae,Lactoridaceae, Loasaceae, 
Myoporaceae, Myristicaceae, Opiliaceae, Oxalidaceae, Pandanaceae, 
Pedaliaceae, Philydraceae, Phytolaccaceae, Podostemaceae, Polygalaceae, 
Primulaceae, Sabiaceae, Santalaceae, Sonneratiaceae, Stylidiaceae, Styra- 
caceae, Theophrastaceae, Triuridaceae, Trochodendraceae, Ulmaceae, 
Vitaceae. Grand total 150 fams., 1,582 gen. 
It is clear from a cursory inspection of this table, that the endemic 
genera of islands belong to the families in rough proportion to the actual 
totals of genera contained in them, though, as we shall see in detail in 
a later paper, a number of herbaceous families like Compositae, Cruciferae, 
Caryophyllaceae, Liliaceae, Umbelliferae, Chenopodiaceae, &c., are distinctly 
low in the scale of island genera, a fact indicating that they are probably 
on the whole younger (cf. 5). 
The families that are missing in the list of island genera also bear out 
the same conclusion. They are 142 in all, out of a total of 292, or nearly 
half, are mostly families with small totals of genera in the world, and are 
chiefly herbaceous, or undershrubs. They form the following list : 
Chenopodiaceae 
with 86 
genera in the wor' 
Iridaceae 
„ 68 
99 99 
Onagraceae 
5 1 
>> 
99 9 9 
Capparidaceae 
>> 49 
9 9 99 
Zygophyllaceae 
>, 31 
99 
99 99 
Oleaceae 
)> 2 7 
99 
99 9 9 
Restionaceae 
„ 2 5 
^ 99 
9 9 99 
Polemoniaceae 
» 2.3 
99 99 
Haemodoraceae 
» 21 
99 
99 99 
Hydrocharidaceae 
„ 21 
99 
99 9 9 
With 7 families with 
II to 
18 
genera 
2 4 j , 
6 to 
10 
99 
„ 49 „ 
2 to 
5 
99 
„ S 2 
1 
genus 
One may compare this list with the list of 150 families that contain the 
endemic genera of islands, and get the following table : 
