176 THE AUSTRALIAN NATURALIST, 
CALLISTEMON VIMINALIS.—This is very common ali 
along the river embankments of the Upper Clarence, right 
up to Copmanhurst, as well as the Orara River. 
[ Denprogium KINGIANUM.—Some sandstone rocks 
along the Orara River were covered with this species, which, 
with its purplish-coloured flowers, was a very pretty sight. 
FIYDROCHARIS MORSUS-RANAE, POTAMOGETON  ORISPUS, 
TRIGLOCHIN, sp.—These three species of aquatic plants 
were very plentiful in the upper parts of the Orara River, 
AGONIS SCORTECHINIANA, MELICHRUS ADPRESSA, LEPTO- 
SPERMUM LivErsipcE1.—These three species of interesting 
plants were very plentiful at Broadwater, on the Rich- 
mond River. 
ELAEOCARPUS OBOVATUS, GASTRODIA SESAMOIDES (an 
orchid), and MAcapaMiIA rerNrroutA (Popple Nut), or so- 
called Queensland Nut, as well as HicKSBEACHIA PINNA- 
TIFOLIA, were the most interesting plants seen at Murwil- 
lumbah. The “‘Hicksbeach or Red Bush Nut’? was in 
fruit, and as the exocarp is of a very bright reddish 
colour, it is very attractive. It is not generally known 
that the kernel of this nut is very sweet and quite as good 
to eat as the “‘Popple Nut.’’ As the shell is much thinner 
than the latter, it is not nearly so hard to crack, a fact 
which should tend to encourage the cultivation of this ex- 
cellent nut for commercial purposes. 
EMIniA SONCHIFOLIA and OBNOTHERA LONGIFLORA,— 
These two species are exotics, and have become naturalised 
at Tweed Heads. They have not previously been recorded 
for New South Wales. 
