224 Dr James Hector on the Physical Features of the 
The collection of flowering plants and ferns consists of 819 
species, belonging to 349 genera and 92 orders, which is more 
than two-fifths of the total flora of British North America. 
In the list, there are 62 species returned as undetermined, 
some of which will most likely prove to be new. In the rela- 
tive order of their importance, from a number of species, the 
principal families stand thus :— 
Composite form #th of the whole. 
Cyperacee ... ygth 
Graminee ... sth 
Leguminose... ygth 
Rosaceze aon ee 
Ranuneulacee 5th 
Crucifere ... th 
Salicacese .,. zggth 
Scrophulariacee 2,th 
The following analysis of the collection will give a further 
idea of the general nature of the flora of the country from 
which it was made. 
In British North 
Of which ; 
No. of No. of America. 
wii Genera. | Species. ss 
mined. 
Genera.*| Species.* 
Ranuneulacee, . j 1 
1 32 18 72 
Menispermacez, 1 1 1 1 
Berberidez, A ‘ 1 1 3 5 
Sarraceniacez, . ; it 1 1 1 
Nympheacee, oe 1 3 4 
Papaveracez, 1 1 3 3 
Fumariacee, . 1 2 Ear 4 9 
Cruciferz, . ’ : 14 31 7 25 104 
Capparidee, 2 2 | 2 2 
Cistinex, . 1 1 3 5 
Violacex, . 1 8 i 18 
Polygalacee, 1 3 1 7 
Droseracez, 1 1 2 9 
Linee, . 1 2 se 1 3 
Caryophyllez, 6 17 3 12 66 
Paronychiee, 1 1 2 2 
* These columns are given for comparison from Sir John Richardson’s 
“ Arctic Searching Expedition, 1851,” vol. ii. p. 322. It is hardly necessary 
to remark that in this and the other works of this veteran explorer and philo- 
sopher, will be found generalizations respecting the climate and vegetation 
of British North America which the results of this expedition have only served 
to establish and apply for a very small area of the region which he treated of. 
