58 
Island], 4 March 1803, R.Brown [Bennett no. 
2752 ] (holo: BM). 
Merremia sp. B, of Wheeler & Marchant 
(1992: 756). 
Perennial with a tap root and trailing stems, 
rooting at the nodes and twining towards the 
tips. Stems terete, herbaceous, densely to 
sparsely hairy or ± glabrous; hairs spreading, 
tubercle-based, 0.25-0.7 mm long. Leaves 
simple, petiolate; petiole 0.5-7.5 cm long, 
blade on more basal leaves ovate, ovate- 
oblong, rarely narrowly ovate, 1-4.5 cm long, 
1.2-4.5 cm wide, base truncate or obtuse to 
sub-cordate, apex obtuse or rounded and 
emarginate, rarely acute, mucronate, margin 
toothed, sometimes becoming shallowly 
lobed towards the leaf base, 4-7 teeth per 
side, becoming hastate in upper parts, 2.5-10 
cm long, 0.2-5 cm wide with an entire to 
occasionally toothed linear to linear-oblong, 
rarely linear-triangular or narrowly elliptic 
terminal lobe, basal lobes dentate to 2 or 3 
lobed, discolorous, densely to sparsely hairy 
or ± glabrous on both sides, hairs as for the 
stem, midrib and 2 pair of veins at the base 
and 3-6 each side. Inflorescence axillary, 
1, occasionally 2 per axil, cymose with 1-3 
flowers, occasionally compound and scorpioid, 
bracteolate; peduncle 10-75 mm long, terete, 
hairs, including those on secondary branches, 
dense to scattered, rarely ± glabrous; 
bracteoles opposite to sub-opposite, concave, 
linear to narrowly ovate or elliptic, 0.5-2 
mm long, 0.4-1 mm wide, acute to truncate, 
apiculate, sparsely hairy to glabrous, margin 
hyaline, abscissing post-flowering; pedicel 3- 
12 mm, slightly dilated upwards, glabrous or 
rarely very sparsely hairy. Outer sepals ovate 
to ovate-oblong or ovate-triangular or elliptic, 
5-7 mm long, 2-3.6 mm wide, extending to 9 
mm long in fruit, obtuse, occasionally acute, 
apiculate, glabrous or with an occasional hair, 
glaucous, margin narrowly hyaline, smooth; 
inner sepals ovate to ovate-lanceolate, 5-7 
mm long, 2.5-37 mm wide, extending to 9 
mm long and 5 mm wide at fruiting, glabrous, 
acute to obtuse, apiculate, margin broadly 
hyaline. Corolla funnel-shaped, limb ± entire, 
10-15 mm long, 15-25 mm diameter, pink to 
mauve, occasionally white, with a deep yellow 
throat, glabrous; petals 10-17 mm long, 8-10 
Austrobaileya 8(1): 55-63 (2009) 
mm wide at the rim, tip rounded, emarginate 
to shallowly 2-lobed, apiculate, slightly erose, 
mid-petaline band with 5 darker longitudinal 
veins. Stamens 5, filaments very unequal, fused 
to the base of the corolla tube for 1-1.5 mm, 
free for 2-6 mm long, terete above, flattened 
and dilated downwards into a triangular basal 
fused area, with short cylindrical glandular 
hairs along the margin to just above the point 
of attachment, hairs to 0.5 mm long, base 
cylindrical, clear, tip conical, milky, glabrous 
above; anthers oblong to ovate-oblong, 1.2-2 
mm long, 0.7-1 mm broad, base sagittate, 
basal lobes 0.3-0.5 mm long, apex rounded 
truncate to slightly emarginate, twisting at 
maturity; pollen tricolpate. Ovary ovoid c. 
1.5 mm high 1.2 mm diameter, golden yellow, 
glabrous, 2-celled, 2 ovules per cell; style 1, 
slender, 3-3.5 mm long; stigma biglobular. 
Capsule globular to globular-ovoid with 
persistent style base, 6.5-8 mm long, 5-6.5 
mm wide; seeds globular-ovoid, 4.3-47 mm 
long, 3.2-3.6 mm wide, reticulate-foveolate, 
dark brown to black, mostly glabrous with 
short hairs around the hilum and along the 
back and central ridge. Fig. 1. 
Additional selected specimens (52 specimens 
examined): Western Australia. Piccaninny Creek 
Gorge, 15 km SE of Bungle Bungle Range, NE 
Kimberley, Apr 1985, Blackwell BB5 , BB122 (PERTH); 
tip of One Arm Point, Apr 1992, Carter 533 (BRI); 19 km 
from Durack River crossing on Gibb River to Wyndham 
road. May 1986, Clarkson 6553 (BRI); creek crossing, 5 
km NW of Kalumburu Road junction on Mitchell River 
Station track, Jun 1987, Edinger 377 (BRI, PERTH); 
Uwins Island, May 2003, Handasyde TH1974 (BRI); 1 
km above campsite on tributary of Prince Regent River, 
19 km SE mouth, Jun 1984, Kenneally 8900 (PERTH); 
SW side of Sir Graham Moore Island, Mar 1993, Mitchell 
2941 (BRI); King Leopold Ranges; hill between upper 
Lennard River & Eva Gorge, Apr 1988, Sands 4619 (K, 
PERTH); near Prison Tree, 23 km S of Great Northern 
Highway on Moochalabra Dam road, Apr 1983, Wilson 
4848 (NSW). Northern Territory. Darwin & Gulf: c. 
40 miles [64 km] E of Mataranka, Mar 1972, Byrnes 
2574 (BRI, DNA); Magela Creek upper catchment, Apr 
1995, Cowie & Brennan 5640 (BRI, DNA); Arnhem 
Land, 19 km E of Jabiru, Apr 1989, Johnson 4521 (BRI); 
Mt Brockman Outlier, 15 km SE of Jabiru, Apr 1989, 
Johnson 4638 (BRI); 6 km W Roper Bar, Jun 1977, Must 
1510 (BRI, DNA); Buckingham River, E. Arnhem Land, 
Apr 1992, Russell-Smith 8584 (BRI, DNA); 10 km from 
East Alligator River crossing on Oenpelli road towards 
Arnhem Land, Apr 1980, Telford & Wrigley 7739 (BRI, 
CANB). Barkly Tableland: 76 km S Elliott, Apr 1996, 
Albrecht 7460 (BRI, DNA); Stuart Highway, North 
Hayward Creek, 58 km N of Tennant Creek, Apr 1983, 
