— 340 — 



Filices. 



Revised by Carl Christensen — Copenhagen. 



While preparing Part X of the Flora of Koh Chang I found, 

 on sorting the material, that several of the ferns collected by 

 Dr. Johs. Schmidt, and determined by Dr. H. Christ in 1900 and 

 published in Part III of the Flora (Bot. Tidsskr. 24: 102—113), 

 were apparently incorrectly named. I therefore undertook a thorough 

 revision of the determinations, and the result was somewhat sur- 

 prising. On my informing Dr. Schmidt of this he asked me to prepare 

 a revised list of the ferns of Koh Chang. In the following list, all 

 the ferns collected are enumerated, with the numbers of the speci- 

 mens added (these being unfortunately omitted in the first parts 

 of the Flora of Koh Chang). I have throughout referred to Christ's 

 list, where informations of localities, area of the species, etc. can 

 be found. 1 use of course the nomenclature of my Index Filicum; 

 as will be seen, it differs greatly from that followed by Christ 15 

 years ago. 



1. Trichomanes sub limb a hi m K. Müll.; C. Chr. Ind. 650; Microgonium 

 sublimbatum v. d. B. Hym. Jav. 6 t. 2: Trichomanes muscoides Christ, 

 Bot. Tidsskr. 24. 104. 



Klong Son (no. 769)., 



Area: Malaya, Assam. An Asiatic representative of the American T. 

 hymenoides Hedw. (T. muscoides Sv.). 



2. T. javanicum Bl.; Christ 1. c. 103. 



Not the true T.javanicum, but a variety or subspecies closely allied to T. 

 rhomboideum J. Sm. ; Cephalomanes rhomboideum v. d. B. Hym. Jav. 33 t. 24. 

 Klong Munsé (no. 133, 774, 778). 



3. T. bipunctatum Poir., C. Chr. Ind. 636; T. filicula Bory, non 

 Christ 1. c. T. pyxidiferum Christ, 1. c. (non L.). 



A form with narrow, lanceolate fronds ; spurious vein rather close to 

 the margin, continuous, rather obscure. Resembles in habit not a little 

 T. humile Forst., but it is evidently a form of the variable T. bipunctatum; 

 very different from T. pyxidiferum L. 



Klong Sarlakpet, on rocks in the jungle (no. 803). 



Area: Tropical Africa, Australia, Polynesia and Asia, northwards to Japan 

 and Corea. 



