DR. I. 13. BALFOUR OX THE GENUS PANDANUS. 35 



Supplement of the younger Linnaeus that we find the genua Pan- 

 danus established as including one species, P. odoratissimus, but 

 so briefly described that, were it not for the references, we should 

 have some difficulty in identifying it. 



The genus so constituted increased in species, until at present 

 nearly sixty true species are known. With the increase of 

 species came attempts to break up the genus, Forster and 

 Porskal had, shortly after the publication of the younger 

 Linnseus's Supplement, described the species he indicated under 

 the generic names respectively of Artlirodactylis and Keura ; and 

 these naturally enough now fall into P and anus. An attempt was 

 made by Hasskarl to found a new genus Marquartia, renamed 

 HasslcarUa byWalpers,but on no sufficient ground. But it remained 

 for Graudichaud to carry the multiplication of genera to an ex- 

 treme. In the Atlas of the Botany of the ' Voyage de la Bonite/ 

 to which unfortunately no text was published, are figured fruits 

 of various species of Pandanus under no less than thirteen dif- 

 ferent genera. Having seen in the Museum of Paris type speci- 

 mens of nearly the whole of these, I have no hesitation in refer- 

 ring them all to the one genus Pandanus. In this way disappear 

 the following genera: — Barrotia, Bryantia, Dorystigma, Bydouxia y 

 Fisquetia, Fouillioya, Heterostigma, Hombronia, Jeanneretia, Rous- 

 sinia, Sussea, Tuckeya, and Vinsonia. Many of Gaudichaud's 

 species are identical with forms known before his time ; but these 

 are indicated in the list which follows, and need not be further 

 noticed here. 



Later De Vriese created two new genera, DoorniaBJid BycJcia, 

 which must share the fate of the others. Doornia includes a species 

 which is said to be probably Mascarene, but which 1 do not know, 

 unless it be Pandanus conglomeratus, Half, fil., though the descrip- 

 tion does not quite suit. The well-known Pandanus furcatus is 

 the species on which BycJcia was founded. 



Most recently, Brongniart, in working up the species of Pan- 

 danea> from New Caledonia, has determined to keep up the genera 

 Barrotia and Bryantia of Graudichaud ; and in these he puts many 



species from New Caledonia. I have seen his specimens, and I do 

 not consider there is any need for so doing. Indeed Brongniart 

 rests his determination in great part on the structure of the male 

 flowers, whilst, so far as the plates in the Atlas of the ' Voyage de 

 la Bonite ' and the specimens in the Museum at Paris go, there is 

 nothing to show that Graudichaud knew aught of the male flowers 



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