THE FLORA OF THE NORTHEBN TERRITORY. 225 



1. S. elliptica, R. Br. — ^Islands of the Gulf of Carpentaria, R. Brown ; 

 Port Essington, Armstrong. 



2. 8. ovaJta, R. Sr.— Islands of the Gulf of Carpentaria, R. Brown. 



6. MICROSTEMMA, R. Br. 



Corolla bearded inside. — 2. M. tuberosum. 

 Corolla quite glabrous. — 1. M. glabriflorum. 



1. M. glabriflorum, F. v. J/.— Sea Range, Victoria River, F. v. Mueller. 



2. M. Tuberosum, B. Br. — ^Islands of the Gulf of Carpentaria, R. Brown, 



7. GYMlSrEMA, R. Bb. 



(Bidaria, Endl.) 



Sect. I. Gymnema. Corolla with small scales in the throat alternating 

 with the lobes. No corona. 



Leaves ovate to ovate-lanceolate. Umbels mostly in pairs. — 3. G. 

 sylvestre. 



Leaves narrow-lanceolate. Umbels mostlj' solitary. — 1. G. MueUeri. 



Sect. II. Bidaria. Corolla without scales in the throat. Corona none 

 or of very obscure glands at the base of the gynostegium. 



Leaves oval-oblong or lanceolate, 1 to 2 in. long, the veins very oblique. 

 — 4. G. trinerve. 



Leaves narrow-linear.. — 2. G. stenophyllum. 



L G. Muelleri, Benth. — ^Upper Victoria River, F. v. Mueller. 



2. G. stenophyllum, A. Gray. — ^Victoria River, F. v. Mueller. 



3. G. sylvestre, B. Br. — ^Islands of the Gulf of Carpentaria, R. Brown. 



4. G. trinerve, R. Br. — Islands of the Gulf of Carpentaria, R. Brown ; 

 also in Leichhardt's collection without the locality. 



8. TYLOPHORA, R. Bb., 1809. 



(Belostemma, Wall., 1834 ; Homolostyles, Wall., 1834 ; Hybanthera 

 Endl., 1833 ; Iphisia, Wight., Amblyglossum, Turcz.) 

 Stems erect pubescent. 



Leaves narrow -lanceolate. — 1. T. erecta. 

 Leaves ovate-lanceolate. — 3. T. macrophylla. 

 Twiners. 



Flowers (scarcely 1^ lines diameter) in several umbels, sessile along the 

 slender simple peduncles. — ^2. T. flexuosa. 



1. T. erecta, F. v. M. — Eleven Mile Creek, near Katharine, Gilruth and 

 Spencer, July- August, 1911. Specimens in fruit without flowers. Vegetation 

 agrees with T. erecta. Fruit not ripe, resembles T. macrophylla, Benth., but is 

 broad at the base, and would be larger when ripe. 



2. T. flexuosa, R. Br. — Upper Victoria River, F. v. MueUer ; islands of 

 the Gulf of Carpentaria, R. Brown. 



Z. T. macrophylla, Benth. — Darwin, G. F. Hill (3rd Series, I.), 15/1/1914. 

 Recorded. Port Essington, Armstrong ; Adams Bay, Hulls. 



