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220 



A CONTRIBUTION^ TO THE FLORA OF AUSTRALIA. 



known Aiistmlijni representative oF the genus: in the ' Genera Plantarum ' 

 (iii. pt. h p. 299) the number of stamens for the genus is said to be 15-30. 

 Tlio phmt under notice has certainly more stamens, but in view oE this 



cliaracter's doubtful value and the female flowers being unkn'own, the claim 

 oE the present phmt to specific rank must rest upon the membranaceous 



(not coriaceous) leaves markedly broader in thoir upper hall: and the 

 small male flowers. 1£ the pet^ds be really absent that would be another 

 peculiarity. 



. -H 



EXPLANATION OF THE PLATES, 



Plate 11» 



A, Fruits of Trihuhis, 



1. Tribulus Ilystrix, R, Br., with long' subulate spines. 2. Trihulus occiJentalis^ R. Br., 



sliowinjr suniUer frnit ^vitll sliort spines; both iiat. size. 



* *■ 



B. Lcptospennopsif^ myrtifoUay gen. et sp. nov* 

 1. The plantj nat. size. 2. A flower^ x C. 3. Section of same, the petals and stamens 



removed. 



C. Calothamnus validns^ sp. nov. 



1. The plantj nat, ^ize. 2. Fruit in side view, x 3. 



Plate 12. 



A. Symphiobaslii alstnoides, sp. nov. 



1. The plant, nat. size. 2. A flowevj X 10, after three of the calyx segments have been 



reniovedj whuwini;^ the corolla (c) adnate below to the ovary and also its spur {sj),), 

 S. Androecium with the style and stigma^ X IG. 



B. Mitrasacme nunwiulana, sp, nov< 



1. The plftnt, nat. size. 2< Flowers in various stages^ X 10. 3. Your.g flower viewed from 



above, X 10. 4. Corolla opened, showing the stnmens, X 10, 5. Calyx slit open to 

 show the ovary, X 10. 6. Ovary in transverse section, magnified. 



\ 



