89 



by Mr. J. G. Baker ') , our actual knowledge of the richness of 

 the Fern-Flora of that Island is relatively poor compared with 

 that of Java and Sumatra. The fact that out of the 88 species 

 making up all together the collections of Teysmann and Tea- 

 scher, more than fifty are not mentioned in the lists of 

 Mr. Cesati and Mr. Baker, notwithstanding that Mr. Teuscher 

 visited nearly the same districts as were explored by Mr. Bur- 

 bidge and formerly by Mr. Teysmann seems to me to prove this. 



However in examining Mr. Cesati's catalogue more carefully 

 I found that it is not so complete as he has considered it and 

 as is stated by Mr. Baker; a great number gathered formerly 

 by Mr. Korthals in the South of Borneo and described by Met- 

 tenius , Miquel and Kuhn in the 4 volumes of the Annales 

 Musei Botanici Lugduno Batavi (1863 — 1869) being left out of 

 account. 



So then there remain of the 88 species, 20 which so far as 

 I am aware have been gathered now for the first time in the 

 Island; they are marked with a *. One of them appeared to 

 me to be quite new. 



In order to complete Mr. Cesati and Baker's Catalogue I also 

 give a list of the species formerly gathered in the Island by 

 Korthals and described by the above named authors in the 

 Leiden „Annales" which since that time have not been gathe- 

 red again. They are printed in the following enumeration in a 

 different type and are 33 in number. 



*Gleichenia circinata Sw. Baker Syn. Fil. p. 11. 



Ins. Karimatae Teysmann. 

 Gleichenia longissima Bl. Mett. Ann. Mus, Bot. Lugcl. Bat. Vol. I pag. 48 ; 

 Gl. (Mertensis) longissima, Bl. Baker Syn. Fil. pag. 12 partim. 

 In Borneo legit Korthals. 

 Gleichenia laevigata Hk. Mett. Ann. Mus. Bot. Lugcl. Bat. Vol. I pag. 49 ; 

 Gl. (Mertensia) flagellaris Spr. Baker Syn. Fil. pag. 14 partim. 

 In Borneo legit Korthals. 



1) Report on a collection of Ferns made in the North of Borneo by Mr. T. W. 

 Burbidge, by J. G. Baker F. R. S. , F. L. S. 



.Journal of Botany, New Series vol. VIII. London 1879. 



