377 



review, the complete issue of the manuscript was found to be 

 impracticable. At the same time it was found that a few of the 

 genera and a considerable number of the species described in 

 Mr. Clarke's manuscript had never been published. The speci- 

 mens in the Herbarium at Kew which represent these unpublished 

 species are authentically named by Mr. Clarke ; other herbaria 

 contain specimens of at least some of these species, also authenti- 

 cally named by him. The names attached being, however, 

 nomina nuda, are not readily available for use in the routine work 

 of botanical determination, and, although in time doubtless the 

 various names employed by Mr. Clarke might be expected to be 

 taken up and provided with diagnoses by other workers, it seemed 

 advisable, since the issue of the whole of the manuscript was not 

 immediately practicable, to render generally available the actual 

 descriptions given by their author of these unpublished species. 

 The work of editing these descriptions has been undertaken by 

 Mr. B. Daydon Jackson, who has bestowed on it all the pains that 

 characterise his labours and all the solicitude that might have been 

 anticipated on the part of a warm personal friend of the lamented 

 author. 



In presenting the diagnoses of these new genera and species, 



the scheme of arrangement followed has been that devised by the 

 late Mr ninrL-o on f*„ ao moMr-jui fv*r» li Avista in tli ft manuscript. 



material 



skeleton form to the descriptions now published. 



An examination of Mr. Clarke's manuscript reveals the fact that 

 he preserved all written sheets, however long he had discarded 

 them ; and, in many genera he had evolved more than one scheme 

 of arrangement, with subordinate groups whose names were some 

 times modified without the explanation that would, no doubt, 

 have been forthcoming had Mr. Clarke lived to see his labours 

 through the press. The early part of the manuscript has received 

 revision on several occasions, but the later portions are left less 

 complete. In the genus Garex his groups received various names 

 as his ideas developed. His views of groups or their names were 

 not always consistent ; "series" are found to be higher and a so 

 lower than "sections" ; where this latter treatment is adopted by 

 the author, the editor has used the word « sub-series m place ot 

 "series." This is, however, almost the only case in which am 

 change has been effected ; the author's work has been presented 

 as close to the original manuscript as could be done. } n & ~"»? 

 and in Kynchospora, and thrice in Garex, there are double > names, 

 and in Uynchoipora \s a name which is admittedly a ^'»- 

 In Fimbristylis a note indicates that one spec;es is out ot place 

 and must be removed. At the end of each genus are .what the 

 author term*,l « r^ulnarv si^eies "-those as to which he had not 



»«Miur termed. - residuary species — i-"^ ~* - ■ t 



satisfied himself of SS £»*< «j£^*^«£S 



ignored 



■«*> isuorea, me exceptions Deing wuw — v "tt-t OTrm i OVP( i bv 

 new species, as in Garex. The numbers are those employ I ftj 

 the author, and his own intercalations are shown uniformly as 



bi % ter, <fcc. 



144 



corresponding 



