DISTRIBUTION OF TRIBES. 427 
seems in some measure to connect the two Australian types. 
Antithrixia and Arrowsmithia may be considered as somewhat 
divergent forms of or offsets from Athrixia, both of them South- 
African—Antithrixia represented also by one species in Abyssinia, 
Arrowsmithia monotypic and local. 
Leyssera, with three South-African species, is the only genus of 
Athrixiee which has a representative (not, however, specifically 
identical) in North Africa. Although of a perfectly distinct 
structural type from that of Athriwia, it is not, nevertheless, at 
all more intimately connected with any other Inuloid genera, 
whether Euinulee or Buphthalmex, which have a similar geo- 
graphical distribution. 
Macowania, of a single species, and Heterolepis, with three spe- 
cies, are both limited to South Africa, and form very distinct 
genera, although generally connected with Athrixiez. The last- 
mentioned, Heterolepis, has hitherto been referred to Arctotide:e, 
of which it has neither the habit northe achenes, pappus, or style, 
perhaps from an undue appreciation of the value of the scarious 
involucral bracts, which, however, is more or less observable in 
Leyssera and other truly Athrixious genera. 
Podolepis is a very distinet Australian genus of a dozen species, 
remarkable for the irregular and varied development of the corolla 
of the female florets. It establishes in this respect, as also in the 
habit and involueres of some of its species, a connexion between 
some Australian forms of Athrixia and Helichrysum respectively. 
We have here a relationship, established by structural peculiari- 
ties and confirmed by origin as presumed from geographical dis- 
tribution, between species such as Athrixia australis and Podolepis 
rutidochlamys, which might readily, on a hasty inspection, be re- 
ferred the one to Asteroidee, the other to Helichrysum. 
8. EvrNULEZ, 19 genera and about 120 species, are so nearly 
connected with each other, that, with the exception of two or three 
rather more distinct monotypic forms, they might be considered as 
constituting a single large genus. Nearly half the species are still 
retained in the genus Inula; and the genus Pulicaria, for in- 
stance, including one half of the remaining species, although 
constant in its character derived from the pappus, is probably 
really less distant from some Jnule than are the two sections 
Bubonium and Cappa from each other, although these are re- 
garded by all botanists as congeners. 
Taken, therefore, as a whole, Euinulee differ from Athrixiee 
