73 



On DuTTONiA, a new Genus of Myoporinese from South Australia ; 

 by Dr. F. Mueller, Government Botanist for the Colony of Vic- 

 toria. 



(Plate I.) 



r 



DUTTONIA.* 



■ 



Gen, Char, Calyx profunde 5 -partitas, persistens; laciniis patentibus, 

 lineari-subulatis. Corolloi intus dense barbata^ tubus brevis, cyliu- 

 dricus ; faux ampliata ; liiubus bilabiatus, labio suijero acute biden- 

 tato, infero tripartito. Stamina didynama, inclusa, filamentis 2 supra 

 coroUae basin insertis, 2 ca^teris brevioribus ; anther m biloculares, 



' loculis divaricatis. Stylm simplex, glaber, stamina superans, apice 

 uncinatus. Ovarmm oblongum, 2-4-loculare, loculis 2 fertilibus ; 

 ovulis solitariis, apice loculi pendulis. Capsula oblonga, obtusissima, 

 leviter compressa, calyce brevior, bilocularis, loculis incomplete bi- 

 locellatis. Semina in locellis solitaria, linearia, — Prutex 07*<£ meri- 



fi 



hbifolia 



Hab. In montibus petrteis juxta rinilum *' Mount Barker Creek" (Co- 

 lonise "South Australia"). — Anth. vere. 



r 



Friitex hirtellus v. puberulus, patcntim ramosus, rarais tenuibus tcre- 

 tibus, ramulis subhirlellis. Folia alterna, demum decidua, lineari- 

 oblonga, subacuta, puberula, plano-convexa, coriaceo-carnosa, encrvia, 

 sessilia, sed non decurrentia, ramulis apprcssa, 1^-2'" longa, scabra, 

 supra irapressa, subtus convexa, tuberculis confluentibus distinctisvc 

 gibba, iis igitur Eriostemonis gracilis et hahnaturommi non absi- 

 milia. Flares axillares, sessiles. Calycis lacinia e latiore basi te- 

 nuissimag, 2'" longae, patentim recurvatae. Corolla calycem duplo 

 superans, extus et prope basin intus glabriuscula, lobi labii supe- 

 rioris fere deltoidei vix lineam longi. Capsula ad apicem valde 

 compressa, 2-3'" longa, glabriuscula, indebiscens? 

 Plate I. Fig. 1, leaves ; 2, portion of branch, leaves, and flower ; 



3, flower laid open ; 4, stamen ; 5, immature fruit : — all magnified. 



* Buttonia, Sender, antea in Liniiffa, xxv. p. 409, divulgata, sed jam anno 1S51 

 descripta, Dimorphohpidi jure prioritatis 8ubjuDgc»da est. 



VOL. Wii. ^ 



