336 PLANTS OF CENTRAL AUSTRALIA 



few cases both in Grevillea and Hakea, but wliicli I believe 

 to be important, as it not only expresses a difference of 

 form, but also in general of vascular arrangement. 



26. Ptilotus [latifolius) capitulis globosis, bracteis pro- 

 priis calycem superantibus, foiiis ovatis petiolatis. 



Log. " In lat. 26° S." D. Sturt. 



Desc. Herba diffusa, ramosa, incana. Folia alterna, 

 petiolata, late ovata, integerrima. Capitula ramos termi- 

 nantiaj solitaria vel duo approximata. Bractese laterales 

 scariosse, sessiles, late ovata3, enervias. Perianthium ; foliolis 

 subsequalibus, lana implexa alba basi tectis, ante expan- 

 sionem ungue nervoso tunc brevissimo, post anthesin 

 lamiuara scariosam enervem fere sequante. Stamina 5 

 antlierifera; filanienta basi in cyathulum edentulum con- 

 nata. Antherse biloculares, loculis utrinque distinctis medio 

 solum conjunctis. Ovarium monospernium, glabrura. Sty- 

 lus filiformis, glaber. Stigma capitatum, parvum. Utri- 

 culus evalvis, ruptilis, 



Obs. I was at first inclined to consider this plant as a 

 genus distinct from Ptilotus, more, however, from the re- 

 markable difference in habit than from any important dis- 

 tinction in the flower, for its character would have chiefly 

 consisted in the great size of its lateral bractese, and in the 

 form of its antherse. 



In a small collection formed during the voyage of 

 Captains Wickham and Stokes, there is a plant very nearly 

 related to, and perhaps not specifically distinct from, Pti- 

 lotus latifolius, but having narrower leaves. It was found 

 on one of the islands of Dampier's Archipelago. 



89] 26. Neubachne [paradoxa) glaberrima, culmo dicho- 

 tomo, foiiis rameis abbreviatis, fasciculis paucifloris, glumis 

 perianthiisque imberbibus valvula exteriore cujusve floris 

 septemnervia. 



Log. Nulla indicatio loci v. stationis, in Herbario D. 

 Sturt. 



Desg. Gramen junceum, facie potius Cyperacese cujusdam. 

 Folia radicalia in speciraine unioo viso defuere ; ramos sub- 



