260 THE TLOEA OF THE NORTHBEN TERRITORY. 



2. S. br achy sterna, R. Br. — Arnhem's Land', F. v. Mueller ; Port Essington, 

 Armstrong. 



3. ;S. breviflora, F. v. M. — Victoria River and Depot Creek, F. v. Mueller ; 

 Arnhem N. Bay and Islands of the Gulf of Carpentaria, R. Brown ; Attack 

 Creek, M'DouaU Stuart. 



4. S. exserta, Benth. — Islands of the GuU of Carpentaria, R. Brown ; 

 Croker's Island, A. Cunningham ; Port Essington, Armstrong. 



5. S. inaperta, F. v. M. — Grassy places. Lower Victoria River, F. v. 

 Mueller. 



6. 8. IcBvigata, F. v. M. — Stony and grassy banks of Victoria River,. 

 Wiokham's Creek, and Depot Creek, F< v. Mueller. 



7. 8. leptoloba, Benth. — Port Essington, Armstrong. 



8. 8. membranacea, R. Br. — Islands of the Gulf of Carpentaria, R. Brown. 



9. 8. multicaulis, Benth. — Islands of me GuK of Carpentaria, R. Brown. 



10. 8. pogostoma, Benth. — Arnhem's Land, F. v. MueUer ; Port Essiagton> 

 Armstrong. 



11. 8. scabra, Ewart. — Calyx shorter than corolla, corolla-tube and lobes 

 about equal, stamens inserted at throat, nearly as long as coroUa-lobes, which 

 are inflexed at tip, capsule opening to near base. A scabrous-hirsute plant, 

 leaves with thickened callous margins. 



Leaves sessile, narrow oblong-lanceolate undulate narrowed to base with 

 thickened margins and a very acute point, up to 25 mm. long by 3-4 mm. 

 broad, stipular sheath very short, 0.6 mm., bristles several times longer and 

 rigidly cihate. Flower heads terminal or axillary, flowers on short pedicels ; 

 calyx about 6 mm. long, the lobes longer than the tube, narrow linear, acute 

 rigid and ciliate ; corolla 6 mm. long, tube funnel-shaped slightly bearded at 

 throat, lobes of about equal length to tube, elliptical oblong with veins, ciliate 

 internally, and a few short rigid hairs externally at the rounded concave tip ; 

 stamens attached at top of tube, a little shorter than coroUa lobes ; style 

 slender, capitate, exserted beyond coroUa ; capsule 3 mm. long opening to 

 near base. 36 miles W. of Camp IV., Lander Creek, G. F. Hill (367), 21/6/1911. 



The specimens of this species of Spermacoce are 40 cm. in height, rigid, and 

 more hirsute and scabrous than any of its congeners. Its leaves and stipular 

 sheaths have the same characters as those seen in S. marginata, but the latter 

 differs from S. scabra in its corolla being very short and in the stamens being 

 included within the tube, although the inflexed or concave apices of the lobes 

 supply an additional point of resemblance. 



12. 8. stenophylla, F. v. M. — Sweers Island, Gulf of Carpentaria, Henne. 



13. 8. suffruticosa, R. Br. — Islands of the Gulf of Carpentaria, R. Brown. 



8. marginata, Benth.; (in National Herbarium Census) 8. uniseta, Baill.; 

 8. Jacobsoni, Baill.; (in Bot. BuU. III.) Knoxia corymbosa, Willd.; Hydno- 

 phytum formicarum, Jack.; Morinda citrifolia, L.; Ccelospermum decipiens, 

 Baill.; Scyphiphora hydrophyllacea , Gaertn.; (in National Herbarium Census) 

 recorded from North Australia. 



CUCUEBITACE^. 



Anther-cells very fiexuose or conduplicate. 



Calyx-tube elongated. Petals fringed with long cilia.- — 5. Trichosan- 



thes. 

 Calyx-tube broadly campanuJate or turbinate. Petals not fringed. 



Tendrils branched. 



