PLANTS FROM THE BOLIVIAN ANDES. 83 
be classed as Amphigean. Thus we have 
South American.. 23°8 per cent. 
American........ 71.4, 
Amphigean ...... 95 4 4, 
South Temperate... 71 ,, ,, 
Cosmopolitan.... 52:3 ,,  ,, 
A comparison of these figures with those in the preceding 
table points to the conclusion that the flora of the upper * alpine 
zone of the Andes contains a smaller proportion of endemic 
elements than that of the lower alpine and subalpine zones. 
This generalization is found to be equally true for the other 
high-level regions of the world. 
The natural orders and genera represented in the alpine 
zone in the Bolivian Andes do not afford much indication of the 
specialization of the flora. The species, however, are usually 
very local. Those comprising the Conway collection are peculiar 
to the New World and all but one are confined to South America ; 
the exception is Lobelia nana, which extends northward into 
Mexico. Of the thirty-one alpine species which are certainly 
identified, eight are found only in the Bolivian Andes, eleven 
extend northward into Peru, two to Ecuador, six to Venezuela 
or Colombia, and three are common to the whole length of the 
Andes. 
It has already been mentioned that two of Conway's plants 
are from an elevation of 18,700 ft. In addition to these, six 
others are from an elevation of 18,000 ft. or upwards, viz. : 
Saxifraga Cordillerarum, Presl, var. trigyna, Engl., Valericna 
nivalis, Wedd., Werneria dactylophylla, Sch.-Bip., W. Man- 
doniana, Wedd., W. pygmaa, Gill. ?, and a species of Draba. 
RaNUNCULACES. 
ANEMONE IntEGRIFoLIA, H. B. K. ex DC. Syst. Veg. i. 217; 
Wedd. Chloris Andina, ii. t. 83 A. Hepatica? integrifolia, DC. 
Syst. Veg. i. 217; H. B. K. Nov. Gen. et Sp. v. 40. Hamadryas 
andicola, Hook. Ic. Pl. t. 137. 
* All but three of the genera considered in the table relating to Conway's 
collection are represented above 14,000 ft. 
