9 



was published, as it would have saved other botanists a good 

 deal of trouble. Turning to the Kew Index, which by the way 

 is not infallible, one finds four genera named Grayia (spelled 

 in various ways). Of these, all are published later than 1841, 

 except Grayia Arnott ' and Grayia Hook. & Arn. Dr. Greene 

 gives 1 841 as the year of publication of tne latter. This date is 

 given also on the title-page of the Botany of Captain Beechey's 

 Voyage, but the work was published in parts, a fact which I 

 think is not unknown to Dr. Greene. The part containing the 

 description of Grayia Hook. & Arn. was issued before June 

 1840. It was reviewed in the American Jtnirnal of Science'^ 

 among botanical literature received from April to June 1840. 

 Another evidence that the date of publication was in the earlier 

 half of 1840, instead of 1841, is that Grayia Hook. & Arn. 

 was republished and illustrated in the third volume of Hooker's 

 Icones,^ which also was issued in the earlier part of 1840, early 

 enough to be reviewed in the same number of the American 

 Journal of Science.^ 



Hence, both Grayia Hook. &. Arn. and Grayia Arnott were 

 published in 1840. Now the question arises, which was pub- 

 lished earlier in the year? To me all the evidences indicate that 

 Grayia Hook. & Arn. was the earlier, for Endlicher in his 

 Genera Plantarum,^ published in the later part of 1840, took up 

 Hooker and Arnott's Grayia, but made no reference to the one 

 published in Steudel's Nomenclator. I think that the burden of 

 proof falls on Dr. Greene to show that Grayia Arnott was pub- 

 lished earlier than that of Hooker and Arnott. 



But not even this is necessary, for in my opinion Grayia 

 Arnott of Steudel's Nomenclator has no standing whatever. On 

 page 705, the place of publication given, we find : 



" Grayia A mot. 



" Zeylanica Am. Andropogon Grayia." 



The word Grayia is printed in a type which Steudel used to 



1 Steud. Nomencl. i : 705. 1840. [Ed. 2.] 



2 39 : 172. 1840. 

 ^3: pi. 271. 



' Loc. cit., 178. 

 5 Page 1376. 



