BUTTERCUPS AND CLEMATIS. 89 
their anthers, small oval and without appendage in C. microphylla, 
- elongated and by a very narrow appendage terminated in C. aris- 
tata, from which peculiarity it traces its specific name. The 
staminate and pistillate flowers of both species are usually 
developed on distinct individual plants. Nearly allied to Ranun- 
culaceze is a Waterlily, Cabomba peltata (or Brasenia peltata) 
of our north-eastern waters, singular for the dense mucilage, which 
invests all the submersed portions of the plant ; it is remarkable 
also for its oval leaves being fixed at the centre to the leafstalk ; 
this explains the species-name, whereas Cabomba is a vernacular 
name for similar plants in Guiana. 
Dilleniacee play a rather important part anywhere in the 
Australian vegetation. Hight plants of this order are to be met 
within Victoria, all referable to the genus Hibbertia, which was 
dedicated to the Superintendent of the Botanic Garden of Clapham 
at the commencement of this century. The illustration of one 
congener, Hibbertia humifusa, must suffice to give an idea of 
these kinds of plants (Fig. XLI.). 
_ Dilleniacez differ merely from Ranunculacee in having the 
seeds usually provided with an appendage (aril), but even the 
leading Asiatic genus Dillenia dedicated by Linné to the Director 
of the Botanic Garden of Oxford at his time, is devoid of the aril. 
Another distinction between the two orders, whether herbaceous 
or shrubby in growth, is not without exceptions, as some Dil- 
leniaceze are almost herbaceous, while even our own species of 
Clematis are quite woody. 
Better marked are the two other orders of this series. The 
arrangement of sepals and petals of Menispermee is mostly 
ternary, the latter are usually minute and opposite to the 
stamens ; ovaries usually three ; seed frequently curved. These 
kinds of plants are nearly always woody climbers with unisexual 
inconspicuous flowers, and with fruitlets succulent outside, hard 
inside, with a protuberance intruding into the cavity. Our 
Sarcopetalum Harveyanum (Fig. XUII.), from East Gippsland, 
is almost anomalous among co-ordinal plants by its succulent 
petals, which much exceed the length of the calyx ; their fleshy 
consistence suggested the name of the genus, while the species 
