A few Fabaceous genera seem confined to the Colony. Of these the curious Isotropis striata, Benth. is a little prostrate bush, with its sterile branches so different from those which bear flowers that one would never suppose them to belong to the same species. Roea and Dichosema are two others of little beauty, to which have to be added Orthotropis70 and Ptychosema71 of Mr. Bentham's herbarium, neither of which possess the slightest interest for horticultural purposes; and Cyclogyne,72 which is quite a new form for Australia, and calls to mind the European species of Onobrychis;
(70) Orthotropis pungens. Calyx basi attenuatus, profunde bilabiatus, labio superiore breviter bifido, inferiore breviore tripartito. Corollæ vexillum late orbiculatum, alis parum longius; alæ oblongæ. Carina oblonga subrecta acuminata alis brevior. Ovarium breviter stipitatum, villosum, pluriovulatum. Stylus brevis, incurvus, glaber. Stigma capitatum. Legumen . . . . .—Suffrutex humilis basi ramosus, ramis adscendentibus pubescentibus. Folia exstipulata, alterna, sessilia, lineari-lanceolata, acutissima, pungentia, integerrima, marginata, coriacea. Flores pedicellati, in axillis superioribus vel ad apices ramorum racemosi. Calyces pilosi, labio superiore concavo dentibus acutis. Petala ex sicco lutea. Discus staminifer ad tertiam fere partem calycis attingit.—Genus hinc Isotropidi inde Chorozemati affine, ab utroque præcipue habitu et carina distinctum. (Benth. mss.)
(71) Ptychosema pusillum. Calyx turbinato-campanulatus bilabiatus labio superiore lato breviter bifido inferiore tripartito, Vexillum explanatum orbiculatum striatum alis longius. Alæ oblongæ. Carina alis parum brevior subrecta obtusa, petalis dorso connatis apice liberis. Stamina monadelpha: vagina supra fissa. Antheræ uniformes. Ovarium subsessile compressum pluriovulatum glaber. Stylus brevis uncinatus. Stigma terminale capitatum. Legumen . . . . . Herba pusilla decumbens pilis sparsis longiusculis hinc inde onusta. Stipulæ parvæ. Folia impari-pinnata, foliolis 5–9 oblongo-linearibus obovatisve obtusiusculis, viridibus siccitate complicatis, venis subtus prominulis. Pedunculi terminales uniflori. Bracteolæ 2 parvæ oppositæ a calyce remotæ. Calyx pilosus et corollæ fere Isotropidis. (Benth. mss.)
(72) Cyclogyne canescens. Calyx campanulatus semiquinquefidus laciniis inæqualibus. Vexillum orbiculatum emarginatum complicatum basi nudum petalis inferioribus longius. Alæ breves oblongæ. Carina alis longior valde incurva obtusa, petalis a basi connatis. Stamina distincte diadelpha. Antheræ consimiles, alternæ eminentes. Ovarium breviter stipitatum villosum pluriovulatum. Stylus incurvus, apice circinato-involutus latere interiore stigmatifer et longe barbatus. Legumen (junius) inflatum oblongum uniloculare intus nudum.—Herba videtur perennis, habitu Phaearum nonnullarum Americanarum. Caulis erectus flexuosus tomentoso-villosus. Stipulæ foliaceæ late semicordatæ. Folia impari-pinnata. Foliola 13–15 obovato-oblonga, supra glabriuscula, subtus laxe canescenti-villosa. Pedunculi erecti multiflori, folio longiores. Flores subsessiles sparsi v. pseudo-verticillati. Calyces et legumina juniora cano-villosissima. Petala glabra ex sicco cœrulescentia?—Genus Galegearum. (Benth. mss.)
