450 NATURAL HISTORY OF PLANTS. 
Daphnidiee, and Tetrantheree to the former, and Acrodiclidia, Nec- 
tandree, Dicypelliee, Flavifore, Oreodaphnee, and Persee to the latter. 
He remarked, however, that some of the two last divisions, such as 
Haasia, Machilus, and Alseodaphne, belonged to the west, and that 
Endiandree, as defined by himself, extended from the east, their 
proper country, as far westward as America; while the Phebe, 
chiefly American, were represented by certain species of Apollonias as 
far east as the Canary Islands and India. So, too,among the essentially 
eastern Tetrantheree, Laurus nobilis spreads over Europe to the west 
of the Mediterranean, and other Zetrantheree had been observed in 
Mexico and the neighbouring countries. Another American member 
of this tribe is now known, Oreodaphne californica Hoox. & Arn. In 
short, Nuuzs’ large divisions have ceased to be valid, so many are the 
exceptions now known. But the classification is not wholly useless, 
and, speaking generally, it is usually correct. The eastern division 
extends to 25° 30’ N., though some Lawracee go so far as 40°, but 
decreasing greatly in numbers. On the south of the Equator it 
extends to Van Diemen’s Land. The western region is bounded by 
35° N. and 35°S. In our hemisphere, Laurus nobilis extends at 
least as far as 45°. In the south, Oreodaphne and Apollonias on the 
west of Africa, and the Phebee, Persea, Cryptocaryee, and Oreo- 
daphnee on the east coast thereof, represent the family in Madagascar, 
the Mascarene Islands, and even the Cape of Good Hope.' Now 
that a larger number of generic types is known, their geographical 
distribution may be given as follows. Out of the 47 genera retained 
as true Lauracee 22 are exclusively American, and 19 have only 
been observed in the Old World. Among these latter come all the 
Cinnamomee, except Persea and Phebe, which are also found in the 
New World. Of the Cryptocaryee, Cryptocarya alone is common to 
both worlds. All the other genera are American excepting Ravensara 
from Madagascar, and the three Oceanian or Asiatic genera, Hndi- 
andra, Dictyodaphne, and Bihania. All the genera of Ocotee are 
American, though a small proportion of the species of the genus 
Ocotea occur in Africa and Madagascar. Tetrantheree, on the con- 
trary, belongs to the Old World, excepting some species of the large 
1 Nuns (op. cit., 688) indicates by fractions Tropical Asia, 3 = +; Tropical America, 
the proportion of Lawracee in the flora of exch 185 __1_, Bytya.tro ical America, 2 —. _1_ 
country. These are his numbers :— rine ie 10 1 i 1a ~ a? 
ustralia, wu = Ge 3 Europe, PITT 
