116 FABACEAE Zornia 
5 Articles mainly glabrous, bristles glabrous; articles 1.5-1.7 mm long ..........ccseeeseeseseeees Z. ‘Darwin Lawns’ 
Sh, Articles white tomentose, bristles hairy; articles 2.2-3.2 mm ION ..........cessseseeeseeseeeeeeee 
6. Vine, stems trailing; leaflets 6-10 mm wide .............++ 
6.  Subshrub, stems not trailing; leaflets 2.5-5 mm wide 
Z. acuta S.Reyn. & Holland 
Annual, stems prostrate. Vegetative parts glabrous, 
pellucid glandular. Stipules 9-13 mm long. Leaf rachis 
10-15 mm long; leaflets drying black, linear, 18-38 
mm long, 1.3-2.3 mm wide, L/W 10-15. Inflorescence 
to 80 mm long, to 8-flowered. Bracts + as long as 
internodes, ovate, c. 11 mm long, sparsely ciliate. 
Flowers and fruit not seen. Fig. 33 
Australian endemic known from the Kimberley and 
the NT where it has been collected once from near 
Darwin. 
Z. areolata Mohl. 
Prostrate annual or (?) perennial rooted herb with 
annual stems. Vegetative parts sparsely hairy with 
simple hairs; stems, leaves, stipules and bracts 
pellucid glandular. Stipules narrowly elliptic, 3-6 mm 
long. Leaf rachis 3.5-12 mm long; Jeaflets linear, 
7-25 mm long, 0.7-3 mm wide, L/W 6-16. 
Inflorescence to 70 mm long, of 2-7 spaced flowers; 
bracts asymmetric, obovate, 5-7 mm long. Calyx 2-3 
mm long, lobes 1/3-1/2 total length. Standard c. 6 
mm long. Pod 2-4-articled, to 10 mm long, 1.5-2.5 
mm wide; articles with patent and retrorse-appressed 
hairs and prominently reticulately veined, the veins 
with divaricate and retrorsely hairy bristles. Seeds pale 
and dark brown, + semicircular, c. 1.7 mm long, | 
mm wide. Flowering and fruiting: Jan - Apr. Fig. 33 
Australian endemic; Qld and NT. In the NT, from 
the coast to Katherine but relatively rare in the DR. 
On skeletal and sandy soils in savanna. 
Z. chaetophora F.Muell. 
Erect, virgate, sparsely foliaged perennial (? annual) 
subshrub to 0.7 m high. Plant glabrous or almost 
so; pustular glandular throughout. Stipules and leaflets 
deciduous; stipules 4-8 mm long. Leaf rachis 8-30 
mm long; leaflets linear or narrowly elliptic, 10-44 
mm long, 1-6 mm wide, L/B (3.3)5-16. Inflorescence 
to 150 mm long, of 3-9 spaced flowers; bracts 
oblanceolate, 6-9 mm long, ciliate. Calyx 3-4.5 mm 
long, lobes c. 1/2 total length. Standard 6-7 mm long. 
Pod 1-4-articled; to 23 mm long, c. 2.5 mm wide; 
articles densely covered with glabrous or hairy bristles 
to c. 3.5 mm long, otherwise with a tomentum of 
short white hairs. Flowering and fruiting: most 
months. Fig. 33 
Z. prostrata 
Z. muelleriana 
Z. disticha 
Australian endemic; in the southern part of the 
Kimberley and the southern part of the tropical 
monsoon region in the NT. In the DR towards the 
Daly R.; rare. 
Z. disticha S.Reyn. & Holland 
Perennial herb to 30 cm high. Vegetative 
parts glabrous or sparsely hairy, pellucid glandular. 
Stipules 4-7 mm long. Leaf rachis 7-13 mm long; 
leaflets narrowly elliptic, 10-18 long, 2.5-5 mm 
wide, L/B c. 5. Inflorescence to 85 mm long, 7-11- 
flowered; bracts imbricate, ovate, c. 8 mm long, 
ciliate. Pod 4-articled, c. 6 mm long, 1.5 mm wide, 
bristles of the reticulum retrorsely hairy, otherwise 
white tomentose, sparsely gland dotted. Flowering 
and fruiting: Mar. Fig. 33 
A rare species recorded from Papua New Guinea 
and Darwin. One specimen only has been seen, from 
a grassy flat at East Point, Darwin. 
Z. muelleriana Mohl. subsp. muelleriana 
Leaf rachis 5-17 mm long; leaflets slightly 
asymmetric, elliptic, 14-21 mm long, 6-10 mm wide, 
L/B 2-3.5. The characters otherwise match 
Z. disticha. Fig. 33 
Not well represented in the NT, although relatively 
common in Qld. The leaf description is taken from 2 
specimens, collected at Mt Bundey and Nabalek. 
Z. prostrata S.Reyn. & Holland 
Prostrate perennial with annual stems. Vestiture of 
vegetative parts variable, from almost glabrous to 
sparsely sericeous or pilose; pellucid glands sparse, 
minute and obscure; veins of the stipules, leaflets 
and bracts often reddish. Leaf rachis 8-25 mm long; 
leaflets asymmetric, ovate or elliptic, 7-37 mm long, 
3.2-20 mm wide, L/B 1.4-3. Inflorescence 5-18- 
flowered; bracts + imbricate, elliptic to obovate, 
5-11 mm long, ciliate. Standard asymmetric, 5-9 mm 
long. Pod 3-5-articled, 8-13 mm long, 1.8-2.5 mm 
wide, thinly white tomentose, the reticulate veins with 
stiff, retrorsely hairy bristles. Flowering and fruiting: 
Jan - July(Nov). Fig. 33 
Endemic to tropical Australia. Relatively 
common in the DR. In Eucalypt savanna on sandy 
soils, on sandstone and on beach dunes. A 
variable species; a large flowered variety occurs 
