12 Australian Plants. 
simple, ovate or subcordate, blunt sessile, with revolute 
margin ; flowers tetrandrous, axillary, solitary, on short pedi- 
cels, forming at the end of the branches a foliate raceme ; 
sepals acute lanceolate, half as long as the corolla; filaments 
hispidulous; carpels elliptico-oblong, compressed, pubescent. 
On sandy places about Encounter Bay and in Kangaroo 
Island. . 
By this interesting species the genus Zieria becomes united 
with Boronia, to which I am also inclined to refer Cyano- 
thamnus. 
17. Boronia clavellifolia. 
Fruticose, diffuse, much branched, smooth; branches tu- 
berculate ; leaflets small, ternate, short-stalked, sub-clavate, 
terete, blunt; flowers axillary and terminal, solitary, ge- 
minate or ternate, octandrous; pedicels shorter than the 
flower; sepals ovate-triangular, ciliolate, less than half as 
long as the corolla; filaments smooth, glandulose. 
On sandy, loamy plains in the scrub near Lake Lalbert 
and towards the mouth of the Murray River. 
MALVACEAE, 
18. Stda intricata. 
Fruticulose, upright or diffuse, much branched; leaves 
small, ovat-roundish, truncate at the top, toothed, but entire 
at the cuneate base, above scantily, beneath densely covered 
with grey stellate hair, petiolesmuch shorter than the leaves, 
surpassing in length often the subulate-setaceous stipules, 
peduncles axillary, solitary, drooping, shorter than the leaves ; 
segments of the calyx subdeltoid; carpels five, a little 
depressed, on the back almost even and puberulous, at the 
commissura netted ; seeds brown, puberulous. 
In sandy, loamy plains between Mount Hope and the 
Murray, also towards the Darling River. 
It bears some affinity to Sida corrugata, but its growth is 
upright intricate, it is much more robust, the flowers and 
leaves and capsules are much smaller, the latter not rough. 
19. Sida humillima. 
Suffruticose, procumbent; leaves thin, ovate-oblong, obtuse, 
cordate or rounded at the base, unequally and deeply crenate, 
above scantily, beneath densely covered with a stellate some- 
what shining indument; petioles hardly of the length of the 
leaves, but longer than the subulate-linear stipules; peduncles 
axillary, solitary or two or three together, filiform, towards 
the middle articulated, sub-equal to the length of the petiole ; 
