DEVELOPMENT AND DISTRIBUTION OF LEGUMINOSAE. 341 
(Cassia) containing four hundred species—has only one 
representative, namely, Cercis, in Southern Hurope. A 
few small genera of the family have representatives in the 
United States. This is strikingly analogous to the distri- 
bution of the Myrtaceze in Hurope and North America 
beyond Mexico, inasmuch as Myrtus communis is the only 
representative of the vast family in Hurope and only a few 
species appear to occur in the United States. In the 
Southern Hemisphere, however, both Mimosez and Cesal- 
piniez extend to the southern portions of the three 
continents. 
Of the three families, Papilionacee is characteristic of 
cooler rather than of tropical regions, and in both hemi- 
spheres its members extend, asrare stragglers, to the limits 
of Dicotyledonous vegetation. Thermopsis is an example 
of this in the Podalyriee, growing at an altitude of 17,000 
feet above sea level in the Himalaya. 
The accompanying table indicates the approximate dis- 
tribution of the Order in the more important countries of 
the world. Spain and Russia have not been included, as 
the literature dealing with the Leguminose of these 
countries was not accessible to the writer. 
Table of Geographical Distribution of Leyuminose. 
Number of!Number of 
Country. Genera. | Species. Remarks and Authorities. 
New Zealand... er a 29 | Cheeseman, 1906. 
Australia Ze cae 97 1275 | Bentham, Flora Australiensis, 
Vol. 11, 1862; Maiden, Federal 
Handbook, 1914; Mueller, 
Second Census of Australian 
Plants, 1889. 
South Africa... re 82 800 | Harvey and Sonder, 1862. 
Tropical Africa a 141 850 | Baker, in Oliver’s Flora of 
Tropical Africa, 1879. 
British India... ae 132 800. | Baker, in Hooker’s Flora of 
British India, 1879. 
Brazil ... et aa 140 1500 | Bentham, in Flora Braziliensis, 
1859 — 1876. 
Britain St we 20 69 | Bentham and Hooker, 1887. 
France ye sy 45 4t0 | Acloque, 1894. 
