176 



FRESH-WATER ALG.E PROM BURMA. 



(4) Liyerhewi : Desmidiaceen aus Bengal. (Bih. till K. Sv. Yet.-Akad. Handl. xiii, 



No. 9, 1888). 



(5) Turner : Fresh-water Algae of East India. (K. Sv. Vet.-Akad. Handl. xxv, No. o 



1893). 





(6) JFVs/, W. 8f Q. S. : Desmids from Singapore. (Journ. Linn. Soc. Bot. xxxiii, 1897). 



(7) Schtnidk : Ueber einige von Prof. Hanegirg in Ostind. gesammelte Siisswasseralg. 



(Hedwigia, 1900). 



(8) Wett, W. Sf G. S.: Freshw. Chlor. Kob Chang. (Botan. Tidsskrift, 1901). 



(9) West, W. $ O. 8. : Freshw. Alg. Ceylon. (Trans. Linn. Soc. Bot. Ser. 2, vi, 



1 902) . 



To these should be added a few records by Dr. Zeller of Algae collected by 

 Kurz to Arracan and British Burma (vide Journ. Asiat. Soc. Bengal, xlii, pt. ii 

 *873) ; two Desmids from Rangoon described by Joshua (Journ. Bot. Febr. 1885)' 



and several records for Bengal, Ceylon and Singapore by Borge (Bih. till K. Sv 

 Vet.-Akad. Handl. xxiv, No. 12, 1899). 



Four other papers are of great importance in connexion with the geographical 

 distribution of the Desmids of the Indian area. These are : — 





(10) SchmiJle : Algen aus Sumatra. (Hedwigia, 1895). 



(11) lionjr: Austral. Siisswasserolilor. (Bih. till K. Sv. Vet.-Akad. Handl. xxii, No. 9, 



1896). 



(12) Gutwimki : Alg. Insula Java. (Bull. Aoad. des Sciences, Craeovie. Nov. 1902). 



(13) tmmmmm : Uber die. von. Dr. W. Volz auf seiner Weltreise gesammelten Siissw.- 



Alg. (Abh. Nat. Ver. Bremen, Bd. xviii, 1904). 



It was pleasing to find that some of Mr. Burkill's collections contained a number 



of Desmids, because more is known in the Indian area 



ning this family 



o 



than any other group of fresh-water Algce. The Desmidiacea: exhibit more deti , 



geographical peculiarities than most other families of fresh-water Alga,, and although 

 the records of these plants in the East Indies are relatively very scrappy, they v" 

 furnish material for a very interesting discussion on their distribution in this part 

 ot the world. A large percentage of the species are ubiquitous in all climates, and 

 many others have a wide distribution in the tropics of both hemispheres, but there 



are a number which appear to occupy a definite geographical area in the East 



Ind 



region 



DeJT* fr0m T r ag '' e c i 't rmation which ; " a ^ilable at the present time, certain 



BZ and" ! A, f C °P ^ 1° Ba ST 6Xteading h0m India and Ceylon, across 

 SoT of L Do 7 r 7* U \ t0 SUmatm aDd JaV "> a " d th <*<* '<> Q-ensland. 



•*r i ? s rio^ as is known are cM * «• *""*" 



