DISTRIBUTION OF TRIBES. 478 
the tropieal species extends into East India, includes various 
forms with great diversity in habit, involucre, and pappus, but so 
connected with each other as to render it difficult to distribute 
them even into well-marked sections; the most marked form, 
some species of the section Pterocoma, DC., offer the only instance 
of some approach in outward aspect to the above-mentioned Bra- 
zilian Schlechtendahlia. 
Lrichocline, about twenty South-American extratropical, subtro- 
pical, or Andine, with one Australian species, Chaptalia, eighteen 
South-American tropical or extratropical species, represented also 
in Mexico and the southern United States of America, and Gerbera, 
twenty species, chiefly South-African, but with a few tropical or 
mountain species dispersed over tropical Africa, East India, and 
Hastern Asia as far Japan, form one natural group, divided by 
some into about sixteen genera, but fairly separable into the 
three above mentioned; for I think there are structural characters 
fully suflicient to separate the American Chaptalias from the 
Old-World Gerberas, with which Schultz Bipontinus unites them. 
All three genera bave a uniform habit, the leaves all radical, 
usually white underneath, and monocephalous scapes. The single 
Australian species, which I had once described as a genus under 
the name of Amblyspermum, I now find to be inseparable from the 
South- American Zrichoclines. 
Lycoseris, ten species, all South-American and chiefly Andine, 
extending from Bolivia to Central America, Chetanthera, twenty- 
six species, and the monotypic Brachyclados and Iobaphes, all 
extratropical or high Andine, belong to the same Gerbera subtribe, 
but are very distinct from the three last-mentioned genera, and 
are unrepresented in the Old World. 
Four small genera with a considerable family likeness, although 
each with well-marked structural characters, 4insliea, ten spe- 
cies, and the monotypic Macroclinidium, Pertya, and Myripnois, 
are Asiatic and Eastern Asiatic, and mostly extratropical or 
Chino-Japanese. The last-named three genera have much of the 
character of some of the Gochnatia group, especially of the Cuban 
Anastraphia, but also show an approach to some Cynaroidez, as, 
for instance, to the (similarly Japanese) section Atractylodes of 
Atractylis. Ainslica, on the other hand, which descends sparingly 
to within the tropies, has somewhat of the habit, though not much 
of the characters, of some Cichoriacem ; and one species was ori- 
ginally described as a Hieracium (H. silhetense, DC.). A very 
