REGIONS AND AREAS OF DISTRIBUTION. 507 
North and South America, and closely connected botanically with 
the united continents, giving altogether six American and six 
Old-World regions. It must, however, be remembered that these 
regions have reference to Composite alone, and would require 
great modifications for orders rich in forest-trees, or in paludose 
or aquatie races, &c., which are, as already observed, so very rare 
in Composite. It must also be borne in mind, in making use of 
the two following Tables of the distribution of Composite in 
America and in the Old World respectively, that the limits of the 
regions are in some instances as vague as the absolute numbers 
of species are uncertain, owing to our insufficient acquaintance 
with the data on which they should be founded. Such limits as 
are here had in view will be specially explained in the notes which 
follow each of the Tables. The insular regions severally con- 
nected with the two divisions will be separately considered, and 
are not included in the totals given in the following Tables 9 
to 12. 
Table 9. Number of Species of Composite in each of the 
American Regions. 
Number of Species. 
| 
| A | a | ED .| Genera 
Genera. E E E y LE in Old 
FHEHPHEHEHEHETHB GS 
Mud LE-EE-E- 2 Ee E 3 
Sales Siar seca 
EE | i | i | 1 
parganophorus ............... cos Ee e O. w. 
as M D Uca 5x | : Su pondere Ed E 
retro onn oen ecl p | ml] EINRLOE 
Oicepermum. eoe ei cad ids wits A e | 1 
Centratherum .................- - 1, 2| 2|..| 2| ow. 
Blanchetia...... 1 eb ie ee ib tad, bas peek be 
Vanillosmopsis .................. eee MAN (PSY 
Albertina.. -eoir A A Rd I LI 
MOON n- ei 20 | 8 | 24 | 32 |180 | 12 250| o. w. 
Lachnorhiza 7. 0. ERE LlSLbp eed 
Piptocarpha 220. epee ts 1| 4] 20/... | 24 
catar o ene ae ME LpI.pere pr + 
Stilpnopappus .................. e xb : 
PIN. ocn o decer ird uE a H 8 
Oliganthes A oen FIIIT] I 8 
Piptocoda sao a 4 besa Neon: 1i econ | cose 1 
Proteopeis. i... oe eos lua A E GAO dE 1 
o AA dors | oe | ipee | ooo | 1 
Haplostephium |... np. pedem | 2L. 2 
Iyelmopbopa cirio cocinas pedem m | 17 | 1H 
. | — MM AA (A | 
Carried forward ............ | 23 | 9 |30 |44 |258 | 12 |344 
