9.  Pentadynamis incana.

LOC.  “On sand-hills with Crotalaria Sturtii.”  D. Sturt.

DESC.  Herba erecta, ramosa, sericeo-incana.  Folia alterna, ternata; petiolo elongato, teretiusculo, foliolo terminali longiore vix unciali.  Racemi multiflori, erecti; pedicelli subaequantes calycem.  Bracteolae subulatae, infra apicem pedicelli, basin calycis attingentes.  Calyx 5-fidus; laciniis acutis tubum aequantibus.  Corolla flava, calyce plus duplo longior.  Vexillum explanatum, basi absque auriculis sed callo in unguem decurrenti ibique barbato auctum.  Carina infra medium gibba pro receptione baseos styli.  Staminum antherae majores lineares, basi vel juxta basin affixae; 5 minores ovatae, incumbentes.  Ovarium lineare, pubescens.  Stigma terminale, obtusum.  Legumen immaturum incanum, stylo e basi arcuata porrecto terminatum, calyce subemarcido subtensum.

OBS.  In the collection of the plants of his last expedition, presented to the British Museum by Sir Thomas Mitchell, there is a plant which seems to belong to the genus Pentadynamis, which is probably, therefore, one of the species of Vigna, described by Mr. Bentham.

10.  Cassia (Sturtii), tomentoso-incana, foliis 4-jugis foliolis lanceolato-linearibus planis:  glandula depressa inter par infimum, racemo corymboso paucifloro cum pedunculo suo folium paulo superante v. aequante, calyce tomentoso.

LOC.  “In sandy brushes of the Western interior.”  D. Sturt.

OBS.  Species proxima C. artemisiaefoliae De Cand.  Prodr. quae Cassia glaucescens Cunningh.  MSS. 1817, cui foliola teretiuscula, et racemus corymbosus cum pedunculo suo folio brevior.

11.  Cassia (canaliculata), cinerascens pube tenuissima, foliis 2-jugis (raro 1-jugis) foliolis angustato-linearibus canaliculatis:  glandula inter par inferius et dum unijuga inter terminale, calycibus glabriusculis, racemis corymbosis paucifloris folio brevioribus.

LOC.  “In the bed of the creeks of the Barrier Range, about thirty-six miles from the Darling, in lat. 32 degrees S.”  D. Sturt.

OBS.  Proxima C. eremophilae Cunningh.  MSS. quae sequentibus notis a Cassia phyllodinea et C. zygophylla, Benth. facile distinguenda.

Cassia (eremophila), glabra, foliis unijugis raro passim bijugis; foliolis linearibus canaliculatis latitudine racheos linearis aversae, corymbis paucifloris folio brevioribus.

LOC.  In desertis prope fluvium Lachlan, anno 1817, detexit.  D. Cunningham.

Cassia (zygophylla), glabra foliis unijugis; foliolis linearibus planis rachi duplo latioribus, corymbis paucifloris folio brevioribus.

Cassia zygophylla, Benth. in Mitch. trop.  Austr. p. 288.

Another species nearly related to C. zygophylla is readily distinguished by the following character.

Cassia (platypoda), glabra, foliis unijugis; foliolis linearibus apiculo recurvo duplo angustioribus rachi aversa lanceolato-lineari.