416 340 
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. I 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 sublimbatum K. Mill.; 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 BI.; Christ 1. c. 103. 
Not the true 7. 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; ZT. filicula Bory, non 
Christ 1. ce. T. pysxidiferum 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 7. bipunctatum; 
very different from T. pyaxidiferum L. 
Klong Sarlakpet, on rocks in the jungle (no. 803). 
Area: Tropical Africa, Australia, Polynesia and Asia, northwards to Japan 
and Corea. 
