226 THE FLORA OIT THE NORTHERN TERRITORY. 



9. MARSDENIA, R. Br. 



(Baxtera, Reichb., 1828 ; Chlorochlamys, Miq., 1848 ; Cionura, Griseb., 

 1844 ; Harrisonia, Hook., 1826 ; Koelreuteria, Medik., 1782 ; Leichhardtia, 

 R. Br., 1849 ; Ruehssia, Karst., 1849 ; Sicyocarpus, Boj., 1837 ; Sphinctostoma, 

 Benth., 1876 ; Tetragonocarpus, Hassk., 1857 ; Verlotia, Toum.) Dowbah. 



Flowers small in compound cymes. Corolla rotate. Leaves broad or 

 narrow, not cordate.^ — 1. M. cinerascens. 



Mowers often rather large, in cymes or in simple umbels. Corolla more or 

 less urceolate (except M. HuUsii). Leaves large, cordate. 



Flowers in cymes. Stigma short. — 4. M. velutina. 

 Flowers in simple umbels. — 2. M. Hullsii. 

 Flowers in simple umbels. Corolla more or less urceolate. Leaves broad 

 or narrow, not cordate. 



Stigma narrow-cyUndrical, nor much exceeding the anthers. ^ — 3. 



M. Leichhardtiana. 

 Stigma very short and obtuse. — 5. M. viridiflora. 



1. M. cinerascens, B. Br. — ^N.W. Coast, Bynoe, Cygnet Bay and S. Goul- 

 bum Island, A. Cunningham ; islands of the Gulf of Carpentaria, R. Brown ; 

 Port Essington, Armstrong. 



2. M. Hullsii, F. v. ilf.— Adam's Bay, Hulls. 



3. M. Leichhardtiana, F. v. Jf.— 20 miles N.W. by N. of Meyer's Hill, 

 Macdonnell Ranges, G. F. Hill (218), 1/6/1911. 



Hooker's and Sturt's Creeks, F. v. Mueller. 

 Pods eaten by Queensland natives. Dowbah. 



4. M. velutinM, R. Br. — ^Islands of the Gulf of Carpentaria, R. Brown ; 

 Port Essington, Armstrong ; Adam's Bay, Hulls. 



5. M. viridiflora, R. £r.— Western Creek, G. F. Hill (756), 14/2/1912. 

 Recorded. Victoria River, F. v. Mueller ; Adam's Bay, Hulls. 

 Dischidia timorensis, Decais. ; Dischidia Rafflesiana, Wall. ; recorded 



from North Austraha in National Herbarium Census. 



CONVOLVULACEAE. 



Sepals free, style filiform undivided to the stigma or stigmatic lobes. 

 Corolla-limb 5-angled or 5-lobed. 



Stigma or stigmatic lobes globular or nearly so. — 6. Ipomoea. 

 Stigmatic lobes, linear, oblong, or rarely ovate. 



Stigmatic I6bes 2. Ovary completely or imperfectly 2 -celled, 



with 2 ovules in each cell. — 7. Convovulus. 

 Stigmatic lobes 4 to 8 or rarely 2. Ovary 2-ceUed, with 1 ovule 

 in each cell. — 8. Polymeria. 

 Style more or less branched below the stigmas or divided to the base. 

 Style-branches 2, with globular stigmas. 



Corolla-limb 5 angled, or shortly 5-lobed, folded in the bud. 



Flowers axillary. — 2. Breweria. 

 Cbrolla-limb of 5 divisions, imbricate in the bud. Flowers in 

 terminal heads or spikes. — 3. Cressa. 

 Style-branches 2, more rarely 3, with discoid stigmas. — 4. Carpentia. 

 Style-branches, 4, with linear stigmas. — 5. Evolvulus. 

 Ovary itself divided into 2 carpels, each with a basal style and con- 

 taining 1 or 2 ovules. — 1. Dicbondra. 



