122 PROTEACEAE 
G. benthamiana McGillivray 
Shrub or small tree to 4 m. Indumentum on 
branchlets and leaves of dense, medifixed, glandular, 
silvery hairs, occasionally also with septate 
glandular hairs. Petiole 5-7 mm long. Leaf blades 
grey-green, imbricate, recurved, ovate to deltoid or 
oblong in outline, 30-55 mm long, 20-65 mm wide, 
L/W 0.86-1.5, deeply bipinnately lobed; lobes linear, 
spinose. Inflorescence axillary or terminal, simple or 
branched, to 250 mm long. Pedicel, perianth, and 
style glandular hairy. Perianth pink becoming deep 
red to almost black, inner surface papillose and 
hirsute with simple hairs; separating into 2 free 
segments. Ovary stipitate, glabrous; style red to pink, 
pollen presenter oblique, only slightly wider than 
style. Follicle asymmetric-ellipsoid, 14-20 mm long, 
glabrous. Seed c. 13 mm long. Flowering and 
fruiting: Apr - Dec. Fig. 35 
A rare NT endemic restricted to old plateaus and 
escarpments of the Daly River basin. On rocky slopes 
in open woodland. 
G. decurrens Ewart 
Small tree to 4 m. Indumentum on branchlets, 
leaves and inflorescence of dense, medifixed, 
ferruginous becoming hyaline hairs, leaves 
glabrescent. Petiole 70-110 mm long. Leaf blades 
grey-green, discolorous, 170-330 mm long, |-pinnate 
with 4-6 pairs of lobes, dissected to midrib; lobes 
narrowly lanceolate to narrowly elliptic, 75-160 mm 
long, 10-45 mm wide, L/W 3.5-7.5, venation 
conspicuous. Jnflorescence axillary, branched, to 
230 mm long. Perianth pink, glaucous, glabrous 
outside, inside hirsute at base, deciduous in 2 parts. 
Ovary stipitate, glaucous, glabrous; style pink, 
pollen presenter oblique, elliptic. Follicle orbicular, 
28-35 mm long, glabrous, glaucous, valves thickly 
woody. Seed orbicular, 23- 25 mm diam. with wing 
to 10 mm broad. Flowering: Nov - Mar; fruiting: June 
- Sept. Fig. 35 
Widespread from the Gulf to the Kimberley; 
common in the DR on skeletal soils in woodland. 
This species has been treated as a synonym of 
G. heliosperma by McGillivray (1993). 
G. dimidiata F.Muell. 
Small tree to ‘5 m, glabrous, sometimes glaucous. 
Petiole 15-40 mm long. Leaf blades grey-green, 
curved, dimidiate, broadest at or below middle, 175- 
340 mm long, 18-75 mm wide, L/W 3.3-10, 
coriaceous, entire, with obscure fine parallel veins. 
Inflorescence terminal, openly branched, to 420 mm 
long. Perianth creamy yellow; separating into 4 free 
Grevillea 
segments. Ovary stipitate; style cream, pollen 
presenter conical. Follicle asymmetric-ellipsoid, 
14-20 mm long, covered with caustic sticky resin. 
Seed not seen. Flowering: June - Sept; fruiting: Sept 
- Oct. Fig. 35 
From Gove to the Kimberley; rare in the DR where 
known from the Douglas River area. Occurs in open 
woodland and shrublands. 
G. dryandri R.Br. subsp. dryandri 
Sparse shrub or subshrub to 1 m. Indumentum of 
fine medifixed hairs on branchlets and leaves, 
otherwise glabrous. Petiole 15-55 mm long. Leaf 
blades 160-200 mm long, 1-pinnate with 3-16 pairs 
of lobes, dissected to midrib; lobes linear, 68-180 mm 
long, 1.3-4 mm wide, margin recurved. Inflorescence 
terminal, branched, secund, to 550 mm long. 
Perianth red, rarely paler cream to white, with short 
fine hairs inside; separating into 4 free segments. 
Ovary stipitate; style red or paler, pollen presenter 
large, oblique. Follicle asymmetric-ellipsoid, c. 10 
mm long, thinly woody, glabrous, sticky resinous. 
Seed not seen. Flowering and fruiting: Mar - Oct. 
Fig. 35 
From Qld across the Top End and into the 
Kimberley; common in the DR where found in open 
woodland on laterite. 
G. dryandri R.Br. subsp. dasycarpa McGillivray 
Sparse shrub to 2 m. Inflorescence axis, pedicels, 
perianth, ovary and base of style with septate 
glandular hairs. Petiole 20-35 mm long. Leaf blades 
130-185 mm long, |-pinnate with 14-26 pairs of 
lobes; lobes filiform, to 105 mm long, c. 1 mm wide. 
Follicle elongate ellipsoid, 12-15 mm long, highly 
viscid. Seed narrowly oblong, c. 9 mm long, folded 
and furrowed, wing vestigial, protruding at one end 
and modified into an elaiosome. Flowering 
and fruiting: Mar - July. Fig. 34 
Associated with sandstone from Arnhem Land to 
Katherine Gorge. Uncommon in the DR where known 
from sandstone formations south of Adelaide River 
township. Differing from subsp. dryandri only by the 
above characters. 
G. formosa McGillivray 
Sprawling shrub, branches trailing to several 
metres long. Indumentum on branchlets, leaves, 
inflorescence, pedicels and outside of perianth of 
closely sericeous medifixed hairs. Petiole 7-15 mm 
long. Leaf blades grey-green, 45-150 mm long, 
1-pinnate with 8-11 pairs of lobes, dissected to midrib, 
