176 MB. G. BEXTHAM ON THE GEXERA 



The salient characters of this plant are: — the sepals wholly 

 connate, forming a closed, at length vertically ruptured calyx ; the 

 imbricate inner petals (which, with the truncate anthers, place it 

 in the tribe Uvarieae,) and the very small, usually solitary, axillary, 

 sessile flowers. 



I believe Dr. Kirk failed to find any expanded flowers. Our 

 specimens show the first rupturing of the calyx. 



Note on the Genera Darwinia, Rudge, and Bartlingia, Ad. Brongn. 



By Geobge Bextha^, P.L.S. 



[Read Feb. 2, 1865.] 



Among the Australian plants described and figured by the late 

 Mr. Eudge in the Eleventh Volume of the ' Linnean Transactions,' 

 was a bushy shrub with heath-like leaves, from the neighbourhood 

 of Port Jackson, which he established as a new genus, dedicated, 

 under the name of Darivinta, to tke author of the Botanic Garden. 

 It belongs to Myrtacese, but, owing to Mr. Eudge having over- 

 looked the minute calyx-lobes, and misunderstood some other 

 points of its structure, it was generally referred to Monochlamydese, 

 where it naturally did not occur to De Candolle to seek for it 

 when working up the Myrtacese for the ' Prodromus.' He makes 

 therefore no mention of that species, nor could he recognize the 

 close affinity borne to it by a plant of which he had specimens 

 from King George's Sound. He therefore described the latter in 

 the ' Prodromus,' and figured it in his memoir on Myrtaceas as a 

 new genus under the name of Genetyllis, Unfortunately he also 

 overlooked the staminodia, expressly distinguishing it from Cna- 

 mcelauctum by their absence. Lindley, therefore, in his account 

 of the Swan Eiver vegetation appended to the ' Botanical Ee- 

 gister,' having to describe three additional species, where they 

 are present, established another jrenus under the name of JSeda- 

 roma, giving to it characters which are really common both to 

 De CandoUe's and to Eudge's species, although omitted in their 

 descriptions. Endlicher also, about the same time, in the Second 

 Volume of the ^ Annalen des Wiener Museums,' proposed a fourth 

 genus under the name of Folyzone, founded chiefly on a pecu- 

 liarity, at least as strongly marked in De Candolle's origin^^ 

 GenetyUis, A. Cunningham, in the mean time, in Field's 'I^cw 



