56 FLORA OF SOUTH AUSTRALIA. 
Ascending or half-climbing ; leaves cordate-ovate, upper part 
of calyx funnel-shaped, exceeding } in. diameter 
ORDER URTICACEAE. 
Flowers unisexual enclosed in a globular receptacle, closed 
at the orifice by small bracts. Trees or shrubs 
Flowers unisexual in axillary clusters. Herbs. 
Leaves alternate, no stinging hairs. Calyx of female 
flowers divided into 4 equal lobes oS i 
Leaves opposite ; beset with stinging hairs. Calyx of 
female flowers with 2 outer segments smaller than 
the two inner 
Ficus. 
Leaves on broad stalks, ovate, firm, glabrous 
Leaves on short stalks, orbicular, firm, very scabrous above, 
bordered by minute rigid teeth or callosities 
Parietaria. 
A diffuse, pubescent, branching annual, 1 ft. or less ; leaves 
on slender stalks, ovate to cordate, 3-nerved from the 
base ; flowers few-together, in axillary cymes or almost 
in clusters, within 3 or 4 bracts shortly united at the 
base nh ary ji ane 
Urtiea. 
An erect perennial ; leaves on long stalks, lanceolate some- 
what cordate, acute, tem toothed ; male and female 
flowers in distinct clusters. : 
ORDER CASUARINEAE. 
Casuarina. 
I. Cone-vales prominent, keeled ; fruit-wings acute. 
Trees. 
Branchlets ribbed, drooping, dull-green ; leaf-scales 9 to 12. 
Cones globular, ancl ; valves villous inside; fruits 
dark-brown . 
Branchlets faintly stvieties avin — ‘greyish- green ; 
leaf-scales 9 to 16. Cones s globose fr in. diameter 5 
fruits grey 
Leaf-scales 9 or 10; cones very hee: pkey fatloclatanss 
cone-valves smaller, minutely pointed § outer bark 
scaly : ; Le : 
repanda 
Fieus 
Parietaria 
Urtica 
platypoda 
orbicularis 
debilis 
incisa 
quadrivalvis 
glauca 
lepidophloia 
