Practically nothing has been published on most groups 

 of cellular cryptogams so far as the Bornean flora is concerned; 

 this including the algae, fungi, lichens, mosses, and hepatics. 

 No comprehensive collections in any of these groups seem to 

 have been made, or if made, but few have been studied and 

 reported on. Borneo will certainly present several hundred 

 species in each of the follov/ing groups; — algae, mosses, 

 hepatics, and lichens; and several thousand different kinds of 

 fungi, if we can base our judgment on the representives of 

 these groups that are known to occur in Java to the south and 

 the Philippines to the north-east where a fair amount of work 

 has been accomplished on all of these groups of thallophytes. 



Borneo is exceedingly rich in vascular cryptogams or 

 pteridophytes, but the ferns having been made the subject of 

 a recent special study by Doctor E. B. Copeland, it has not been 

 considered worth while to work up the bibliographic list of 

 the Pteridophyta at this time. In the nine families of 

 ferns, including Ophioglossaceae, Marattiaceae, Osmundaceae, 

 Schizaeaceae, Gleicheniaceae, Hymenophyllaceae, Polypodlaceae, 

 Parkeriaceae, arid Marsileaceae, Doctor Copeland* recognizes as 

 Bornean eighty-eight genera and six hundred and ninety-seven 

 species, making the estimate that the list of known species 

 represents about 60 per cent, of those that may with reasonable 

 certainty be expected to occur in Borneo. 



The remaining groups of the pteridophyta have recently 

 been treated for the entire Indo-Malayan region by Captain 

 C. R. W. K. van Alderwerelt van Rosenburghf, including the 

 Marsileaceae, Salviniaceae, Equisetaceae, Psilotaceae, Lycopo- 

 diaceae, and the Selaginellaceae, their Bornean representatives 

 being few except in the genera Selaginella and Lycopodinm. 



The present bibliographic list of Bornean plants includes 

 only the spermatophytes or flowering plants (phanerogams) the 

 group that is in general included in the published floras and 

 list of plants of most other countries in the tropics of the Old 

 World. In arrangement of the families and genera I have 

 rather closely followed the Engler and Prant. system as 

 developed in their Naturlichen Pflanzenfamilien. In 

 nomenclature I have in general followed the International Code 

 of Botanical Nomenclature as adopted by the Vienna Botanical 

 Congress and modified by the last Internatiowal Botanical 

 Congress held in Brussels. I have recognized the generic list 



* Copeland, E. B. Keys to the Ferns of Borneo. Sarawak Museum 

 Journal 2 (1917) 288-424. 



f Van Alderwerelt van Rosenburgh, C. R. W. K. Malayan Fern Allies. 

 Handbook to the determination of the fern allies of the 

 Malayan Islands, including those of the Malay Peninsula, the 

 Philippines, and New Guinea (1915) XVI -r 1-263. 



