158 DE. F.MUELLER ON DENNISONIA, BABKLYA, AND LABOUCHEEIA. 



Genus habitu eximiura, characteribus autera Newcastelice et praesertim 

 Pityrodice valde cognatiim, cum summa veneratione et gratissimo 

 animo dieavi viro pneillustrissirao Guilielmo Dennison ordinis balnei 

 equiti, coloniarum Australia? gubematori, scientiarum artiumque hinc 

 elato patrono et cultori, qui ad perlustrationem Australise intra- 

 tropicse phytologicam benignissime mihi obtulit facultatem. 



Dennisonia ternifolia. 



In rupibus originem versus fluviorum M* Arthur et Seven-Emu River ad 

 sinum Carpentaria Gulf. 



BaRKLYA, n. g. C^SALPINEARUM*. 



Calyx ebracteolatus campanulatus breviter 5-dentatus ; dentibus ajquali- 

 bus V. sunimis minoribus. Petala 5 subsequalia obovato- v. orbicu- 

 lari-spathulata longe et tenuiter unguiculata aestivatione imbricata 

 uno ex infernis exteriore? Stamina 10, omnia fertilia breviter exserta 

 cum petalis basi calycis affixa, libera, alterna paullo breviora. Antherce 

 sagittatse versatiles eglandulosae, loculis longitudinaliter dehiseentibus. 

 Ovarium stipitatum, 3-4-ovulatum, glabrum. Stylus brevis filiformis. 

 Stigma minutum truncatum. Legumen stipitatum compressum gla- 

 brum reticulato-venosum oligospermum, isthmis eellulosis imperfecte 

 loculatum. Valves oblongo- v. ovato-laneeolatte chartacese. Semina 

 albuminosa compressa oblique ovata hinc truncata. Strophiolum 

 nullum. Cotyledones reetae planae. Radicula brevis arcuato-incum- 

 bens hilo proxima. 



Arbor Australisd orientalis subtropiea; admodum venusta; foliis eoriaceis 

 simplicibus cordatis palmatinerviis ; racemis elongatis conferte raulti- 

 floris ; pedicellis solitariis ; petalis aureis. 



Genus Mores forsan propinquum gratissima mente et summa observantia 

 dicatum viro excellentissimo Henrico Barkly, ordinis balnei equiti, 

 coloniae VictoriEe gubernatori, scientiarum fautori praenobilissimo. 



Barklya syringifolia. 



In sylvis ad flumen Pine River detexit amiciss. et clariss. W. Hill. 



Laboucheria, n. g. Mimosearum. 



Flores hermaphroditi regulares. Calyx infundibulari-campanulatus 

 quinquedentatus. Petala 5 libera spathulato-ovata sequalia. Sta- 

 mina decem libera glabra breviter exserta, omnia fertilia cum petalis 

 infra faucem calycis inserta. Antherce ovatae introrsae dorsifixae bi- 

 loculares, loculis rima longitudinali dehiseentibus, connectivo apice 

 compresso semiorbiculariter producto. Germen dense pubescens. 

 Stylus crassus brevissiraus glaber. Stigma minutum concavum. 



* The specimens are not sufficient to make out the aestivation of the corolla 

 satisfactorily ; but it appears to me, that one of the lower petals is the external 

 one : the habit and other characters in the flower are those of CcesalpinecB, of 

 the subtribe Ci/nometrea ; whilst the incurved radicle would place it in the 

 Sophorece, where I know of no genus at all aUied to it. — G. B. 



