Tylnphora.] LXXX. ASCLEPIADE^. 1007 



often longer than the leaves. Pedicels filiform, 1 to 2 lines long. Calyx- 

 segments about f line long. Corolla scarcely 1^ line diameter. Corona- 

 segments rather thick, but not very prominent, acuminate, the adnata points 

 reaching to about half the length of the anthers. — Dene, in DC. Prod. viii. 612 ; 

 Hoya flexuosa, Spreng. Syst. i. 843. 

 Hab.: Islands of the Guli of Carpentaria, R. Brown. 



13. MARSDENIA, R. Br. 



(After William Marsden.) 

 (Leiehhardtia, R. Br.) 

 Corolla with a short broad tube or nearly rotate, the limb spreading', divided 

 into 5 lobes contorted in the bud, the right-hand edge usually overlapping. 

 Corona of 5 segments adnate to the gynostegium at the base, ' sometimes with 

 free basal auricles or almost peltate, the upper end erect and free, shorter than the 

 anthers or scarcely exceeding thenl. Anthers terminating in a membrane. Pollen- 

 masses 2 to each anther, oblong or rarely obovoid, erect. Stigma (or summit of 

 the style) obtuse or terminating in a cone or in a long beak. — Stems twining oj 

 rarely erect. Leaves herbaceous. Flowers in an irregular cyme or panicle or 

 more frequently in a simple umbel on an interpetiolar peduncle. 



The genus, as at present constituted, is dispersed over the tropical regions of the New as well 

 as the Old World, with one species extending to the East Mediterranean region. The Aus- 

 tralian species are, however, as far as hitherto ascertained, all endemic. — Benth: 



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

 narrow, not cordate. 

 Stigma short and very obtuse. 

 Erect or scarcely twining. 



Leaves usually broad. Corolla-lobes shortly bearded . . . . \. M. cinerascens. 

 Leaves oval or narrow-lanceolate. Corolla-lobes narrow, oblong- 

 lanceolate 2. M. 7-hyncholepig. 



Twiner. Leaves usually narrow. Corolla lobes glabrous .... 3. M. flavescens. 

 Stigma narrow-conical or rostrate. Leaves narrow. Corolla-lobes 



bearded at the base i M. cymulosa. 



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

 or l6ss urceolate. Leaves large, cordate. 



Flowers in cymes. Stigma short 5. M. veluHna. 



Flowers in simple umbels. Stigma narrow-conical or rostrate. 



Corolla Jin. long . 6. j¥. araujacea. 



Flowers in simple umbels. Corolla more or less urceolate (except in M. 

 longiloba). Leaves broad or narrow, not cordate. 

 Stigma long and rostrate. 

 Leaves ovate, shortly and obtusely acuminate. CoroUarlobes 



shortly bearded below the middle 1. M. rostrata. 



Leaves lanceolate, acute. Corolla-throat densely bearded . . , %. M. Fraseii. 

 Stigma narrow-conical, not much exceeding the anthers. 

 Leaves oval oblong or lanceolate. Corolla glabrous inside, the 



lobes twice as long as the tube 9. M. longiloba. 



Leaves linear. Corolla-lobes shorter than the tube or not longer. 



Corolla-lobes not 1 line long ; tube pubescent inside . . IP- M. leptophylla. 



Corolla glabrous inside, the lobes nearly 2 lines long . . . . 11. M. Leichhardtiana. 

 Stigma very short and olituse. 

 Glabrous or nearly so. Leaves mostly lanceolate, acute. Corolla- 

 throat with a prominent ring inside and more or less bearded . 12. M. viridiflora. 

 Glabrous or nearly so. Leaves lanceolate, acute. Corolla glabrous 



inside with an inflexed scale at the throat at each sinus . . .13. M. coronata. 

 Pubescent. Leaves ovate to broadly lanceolate. Corolla glabrous 

 inside 14. M. microUpis. 



1. M. cinerascens (plant ashy-grey), E. Br. Prod. 461 ; Benth. Fl. Austr. 

 iv. 837. Shrubby, diffuse, suberect or shortly twining, the young shoots and 

 inflorescence usually hoary-pubescent, the adult foliage glabrous. Leaves on 

 rather long petioles, in some specimens broad^fy ovate or almost orbicular, in 



