232 Australian and Tasmanian Umhelllferous Plants. 



cliaracterized in Field^s Geographical Memoirs of New 

 South Wales {lS2b), his My nffiicm ovimim. The invaluable 

 Prodromus of De Candolle brings in the fourth volume (pub- 

 lished in 1830) important additions; the geneva, Dimetopia 

 and Astrotricha are here for the first time distinguished, 

 and new species are added to Hydrocotyle, Trachyme^ie, 

 Xanthosia and Eryngium ; and Helosciadium lej)to23hylkmi 

 is shown to be an Australian plant ; Sir William Hooker 

 having previously given in the Botanical Magazine, 

 (t. 2875), publicity to two species of De CandoUe's genus 

 Didiscus. From the collections of Bauer, Cunningham 

 and Baron Huegel, new contributions were made to the 

 Australian JJmlellifera by the labours of Bentham, in- 

 corporated in the Enumeratio Tlantarmn Nova Hollandia 

 Aiistro-occidentalis of Huegel (1837), by which the genera 

 Hydrocotyle, Didiscus, Trachymene, Leucolana or Xanthosia, 

 Astrotricha and Actinotus became augmented. The Austra- 

 lian species of Caldasia (Caldasia erio^oda of De Candolle's 

 Prodromus) a plant which exhibits the most extraordi- 

 nary varieties, changed its preoccupied generic name into 

 Oreomyrrhis in Endlicher's celebrated Genera Plantar %m 

 (1840); Pe#i((X^ei?;Jw, previously (1857) published as i/ez(!co^(«?«<2 

 by Hooker, and afterwards elevatedby Bunge to generic rank, 

 forms here a sub-genus ; whilst Cesatia, a genus seemingly 

 near to Didiscus, received its characteristics by the same 

 author in the annals of the Vienna Museum. In the import- 

 ant work, edited 1845 by Lehmann, on the Plants of Preiss 

 from Western Australia, a work so replete with novelties, 

 Bunge made us acquainted not only with new Hydrocotyles, 

 Trachymenes, and Xanthosias, and with two Eryngiums, 

 perhaps also new, but he discriminates also the genera 

 Schanolana and Plafysace, and unites Pritzelia of Walper 

 to Eimeioj)ia. Mr. Ronald Gunn's and Dr. Milligan's 



