110 MINTS. 
referable to it. It was named in allusion to the appendicular 
Fre. LI.—(Prostanthera spinosa).—1, flower with stalk- 
let and bractlets, many times enlarged ; 2, corolla much mag- 
nified, open to show the position of the stamens ; 3, anthers 
much enlarged ; 4, pollen-grain, 300 times diametrically mag- 
nified ; 5, fruitlets, the calyx slit partly away, magnified ; 
6, a separate fruitlet, cut transversely, magnified; 7, em- 
bryo, magnified. 
processes of its 
anthers (see 
Fig. LI.), and 
is restricted to 
Australia. Per- 
haps the only 
instance of a 
plant of this 
order attaining 
to the size of a 
a real tree is 
given by Pros- 
tanthera lasian- 
thos, which is 
not unfrequent 
in our forest - 
glens, and is 
specifically so 
called on ac- 
count of its 
downy flowers. 
The only thorny 
species is Pros- 
tanthera — spi- 
nosa, of which 
a figure as 
illustrative of 
genus and order 
is given. 
Prostanthera 
spinosa is wild 
on the Gram- 
pians, thence 
extending spar- 
ingly westward 
to  Spencer’s 
