REGIONS AND AREAS OF DISTRIBUTION. 
491 
Genera. Tropieal-Ameriean representatives. | Tropical Old-World representatives. 
PLUCHEA. 
Diverging groups P. Quitoc and allies, several of them | P. indica, Berthelotia, DC., P. pinna- 
extratropical. tifida, Hook. f., and allies; the spe- 
cies more Asiatic than African, and 
a few more divergent extratropical 
: Asiatic or Australian species. 
Connexions ......| Stenachenium 3 species (Brazil), | Laggera 10 species, Blumea 55 spe- 
ACHYROCLINE ... 
Connexions ...... 
GNAPHALIUM ... 
STENOCLINE ...... 
Connexions ...... 
GRANGEINEZ. 
Representative 
genera ......... 
Connexions 
MELAMPODIUM... 
Connexions 
CHRYSOGONUM ... 
Connexions 
ENHYDBRA rsi: 
Connexions 
SCLEROCARPUS ... 
Connexions 
BLAINVILLEA...... 
Connexions 
WEDELIA. 
Seet. Stemmodon 
Sect. Cyathophora 
Sect. Wollastonia 
Connexions ...... 
MELANTHERA. 
Sect. Wurm- 
echmidtia or 
Echinocephalum. 
Sect. Eumelan- 
thera, 
Sect. Lipotriche 
Connexions .. . 
Connexions ...... 
Sachsia 3 species, and Rhodogeron 
l species (Cuba), Tessaria, 5 species 
(Western). 
10 species, Brazilian and Western. 
Gnaphalium and Stenocline. 
See cosmopolitan genera, Table 8. 
2 species, Brazilian. 
Gnaphalium and Achyrocline. 
Egletes 6 species. 
Aphanostephus 3 species, and, more 
istant, several north-western Aste- 
roidee. 
17 e (tropical or north subtropi- 
cal). 
Acanthospermum 2 species (tropical), 
Lecocarpus 1 species (Galapagos). 
1 species, North-American, subtro- 
pical, 
Silphium 11 species (North-Ameri- 
can), Berlandiera, Lindheimera, and 
Engelmannia 7 species (Mexico and 
Texas), and Schizoptera 1 species 
(Andine). 
3 or 4 species, aquatic and tropical. 
Aphanactis 2 species, Andine. 
9 species, tropical or north subtro- 
pical. 
Montanoa 14 species, Mexican and 
Andine. 
lspecies cosectional with the African, 
and 2 or 3 species sectionally differ- 
ent. 
Wedelia, Aspilia, &c. 
4 species, mostly maritime. : 
About 25 species, Brazilian, Andine, 
&e. 
None. 
Besides Blainvillea and Aspilia, Zex- 
menia 20 species, Oyedea 22 species, | 
About 30 s ecies, 2 or 3 cosectional 
with 5 African; the others diver- 
ent. 
‘Besides Wedelia and Blainvillea, 
Zexmenia, Oyedea, &c., as above. 
1 species, Brazil. 
4 species, Brazil, Indian Ocean, &c. 
None. 
None very near, but less distant than 
in Old World. 
About 20 species, tropical, 
None very near, but Sabazia nearer 
than any Old-World. 
cies, and, in another direction, 
Conyza. 
6 species, all African. 
Gnaphalium, Stenocline, and others. 
6 species, Mascarene. : 
Helichrysum, Gnaphalium, Achyro- 
cline, and others. 
Grangea 2 species. 
Ceruana 1 species and several small 
tropical genera and, more distant, 
several north-eastern Asteroides, 
and, in another direction, Cotulee. 
1 species (Philippines) and a colonist 
from America. 
None near. 
1 species, tropical Australian, closely 
representing the North-American 
one; 2 species Australian and 3 
species Asiatic, all tropical and 
somewhat divergent. 
None near. 
1 species, African and Asiatic. 
None near. 
l species, African, closely represen- 
tative of one of the American. 
None near. 
3 or 4 species African, 1 also Asiatic, 
all cosectional with 1 American. 
Wedelia and Aspilia. 
l1 species, East-Asiatic. 
1 species African, 1 species Asiatic. 
About 10 species, Asiatic and Austra- 
lian. 
None but Blainvillea and Aspilia. 
8 species, of which 5 African cosec- 
tional with 2 or 3 American, 2 Afri- 
can and 1 Mascarene divergent. 
None but Wedelia and Blainvillea, 
1 species, African. 
None. 
1 species, African. 
None near. 
20r 3 species, Asiatic, Australian, and 
chiefly East-African; all tropical. 
None. 
