Pentatropis,] Lxxvi. asclepjade.t:. 329 



usually overlapping^). Corona double, the outer one of a slightly prominent 

 nng or 5 scarcely conspicuous obtuse lobes at the base of the gynostegiiim 

 or near the top of the filaments, the inner (or upper) one of 5 adnate seg- 

 ments more or less saccate or inflated at the base, the erect points adnate and 

 sometimes produced beyond the anthers. Anthers terminating in a small 

 membrane. Pollen-masses 2 to each anther, oblong or clavate, pendulous. 

 Stigma short. — Twiners. Leaves lierbaceous, linear in the Australian species. 

 Flowers in siniple umbels on solitary interpetiolar peduncles. 



The genus is spread over tropical Asia and Africa. The Anstralian species, all endemic, 

 cJoselj resemUe each other, and diiler from all the extra-colonial ones in their linear revo- 

 Inte leaves. 



Corolla divided to about the middle. 

 Outer annular corona at the base of the gynostcgium ; inner scg- 



ments distant from it, saccate and almost spurred at the base . 1. P. Unearis. 

 Outer annular corona close under the inner inflated but scarcely 

 saccate segments .,..*...,..... 2. i'. atropnrpurea. 

 Corolla divided nearly to the base . 3. P. qainquepartita. 



1- P. linearis, Bene, in DC. Prod. viii. 536. A slender twiner, nii- 

 ii^tely hoary-pubescent or glabrous. Leaves shortly petiolate, linear, with 

 J^volute margins, 1 to 3 in. long. Umbels shortly pedunculate, the pedicels 

 slender, 4 to 6 lines long, Calyx-segments narrow, spreading, about 1 line 

 'ong. ^ Corolla very broadly campauulate or almost rotate, the lobes ovate, 

 spreading to nearly 3 lines diameter. Outer corona a very slightly prominent 

 ^ndulateand sinuate ring at the base of the gynostegium; inner corona of 

 5 segments laterally compressed, adnate to the back of the anthers, the lower 

 ^"d free and saccate or almost spurred, the upper end produced into a short 

 adnate point. Pollen-masses small, pendulous or almost horizontal 



W. Australia, Drummond, \st CoIL n. 667. 



A- slender glabrous twiner. Leaves 



p-ucb, uie pedicels about ^ in. loni?. Calyx-segments narrow, aoout i ime 

 ^^Jig. Corolla almost rotate, divided to about the middle into broad acute 

 jobes. spreading to about 4 lines diameter. Outer corona a scarcely promi- 

 nent undulate ring at the top of the very short filaments ; inner corona of 5 

 JJginents adnate to the back of the anthers, inflated but scarcely saccate at 

 Jfte louver end, the upper end an adnate point shortly produced beyond the 

 ^ntbers. Follicles 2 to 3 in. lonj^, not acuminate.— ^/^^«c^«?v7^^«a atropur- 

 ^"^^^.F.MueU.Fragm.i.l28. 



Qieensland, 



Mueller. 



^* ?• CLuinquepartita, Benth. A slender glabrous twiner, closely re- 

 ttblmg p. atropnrpurea, with the same linear revoliite leaves. Umbels in 



J, ^^Pf cinaens simple and few-flowered. Plowers of P. atropnrpurea, except 

 at the corolla is divided nearly to tlie base into acutely acuminate lanceolate 



Wi ^1 ^ ^"^ ^^ ^'"^^' sUgbtly bearded inside. Corona of P. atropnrpurea, 

 ^ith the points of the segments scarcely protruding beyond the anthers. 



