XL. LEGUMlNOb^. " 185 



26. PENTADYNAMIS, R. Br. 



.Calyx-lobes nearly equal. Standard broad, without auricles, but with cal- 

 losities decurrent on the claw ; keel obtuse, as long as the wings. Upper 

 stamen free, the others united; anthers alternately long and erect, and short 

 and versatile. Ovary with several ovules; style incurved, bearded upwards 

 along the inner side; stigma terminal. Pod flattened. — Herbs. Leaves 3- 

 foiiolate. Leaflets sessile (digitate?). Flowers yellow, in axillary racemes. 



Tlie genus is limited to the single Australian species, 



L P. incana, \S, Br. in Jpp. Stnrt Exped, 76. An erect branching 

 hoary-white herb or perhaps undershrub, of about 2 ft. Leaflets linear, ob- 

 tuse, the central one the longest and scarcely 1 in. long. Eacemes many- 

 flowered, the pedicels as long as the calyx. Calyx-lobes acute, as long as 

 the tube. Petals more than twice as long as the calyx. Ovary pubescent, 

 nnripe pod hoary-white, acuminate by the incurved base of the style. 



S, Australia. Ou sandhills with Croialaria Si uriiiy Start. I have seen no speci- 

 inens answering at all to the above character, which I have taken from R. Brown. The 

 affinity of the ^enns must therefore remain uncertain till the plant has been again seen and 

 examined. The author suspects that one of my Vignas may be another species, but I have 

 •cea DO plant, allied to Vlr/na, which has any tendency to the dimorphous anthtrs. hitherto, 

 amou^ Phaseolece, only observ^jd in Macuna, Teram7ius, and Dhclea. F. Mtieller, Fragm. 

 "i- 56, refers the plant, without hesitation, to Croialaria dlssWfiora, Benth., var. eremcpa, 

 out R. Brown describes the keel as obtuse, the stamens diadelphous, and the pod flattened, 

 all of them characters incompatible with Croialaria. 



27, ROTHIA, Pers. 



(Weston 



^Pptr side; anthers small, uiiifoi-m. Ovary sessile, witli several ovules; 

 %le straight, not bearded, with a tenniual stin:rna. Pod linear or Liiear- 

 'aueeolate, acute, not divided inside, opening wlien npe on tlie upper side 

 as a follicle. Seeds without anv strophiole.— Annuals. Leaves digitate, with 

 leaflets. Stipules free. Flowers very small, leaf-oppRscd. 



J^sides the Australian species, which is also E. Indian, there is only oue other species 



tropical Africa. 



1. R. trifoliata, Pers.; DC. Prod. ii. 382. A diffuse or prostrate 

 ^fnual, attaining 1 to 1| ft., softly hairy iu all its parts. Leaflets from 

 JImost obovate to narrow-oblong, cuiite entire, | to \ in. or rarely t or even 

 ^ '"-long, on a short common petiole. Stipules ovate and leaf-like, but 

 ^n!l. Flowers rarely above 2 lines long, solitary or 2 together on ve.y short 

 pedicels opposite the leaves. Bracts and bracteoles small, setaceous I od 

 »3rro«--linear, ] to 2 in. long.— W. and Am. Prod. 195 ; Uight. Ic t. 1J9. 



^- AastraUa. Upper Victoria river, F. Mueller. Not uncommon in E. InJia. 



Tribe IH. Trifolie.k.— Herbs, very rarely shrubs. Leaves usually 

 Pmnately or rarely digitately 3-foliolate, the veinlets of the leaflets extending 



