SEIFRIZ: PLANTS ON MT. GEDEH, JAVA 201 
delicate little filmy ferns, species of Hymenophyllum and 
Trichomanes.. The smallest of the hymenophyllums we shall 
find at a higher altitude. 
Mosses exist, but are to be found in much greater abundance 
in the second and fourth subzones. Species of liverworts are 
not numerous, although fine patches of the large Dumortiera 
hirsuta are frequent. 
Fungi (with conspicuous fruits) are seldom met with. This 
is rather generally true of the tropics. A few species of the 
woody and leathery forms of the Polyporaceae and an occasional 
gill fungus are all that are superficially evident. Diligent search 
does, however, reveal other and interesting species, often o 
brilliant color. 
Of lichens the number of species is exceedingly great. I have 
seen trunks of the great rasamala completely covered with en- 
crusting lichens which give to the tree the appearance of an 
elaborate mosaic. The Graphidae are especially attractive. 
One feels that nature must have some story to tell in their 
queer markings if one but knew the key. Indeed, they look 
every bit as intelligible as the hieroglyphics of tte Malay 
language. Forty-seven species of lichens were collected from 
the first subzone. The genera Graphis, Pertusaria, and Sticta 
are especially well represented.* 
II. THE Popocarpus SUBZONE 
(5,500-7,000 feet) 
At an altitude of about 5,500 feet there is a pronounced 
change in the general appearance of the mountain forest. One 
realizes immediately that the woods have assumed a different 
dress. Everything is moss-covered (PLATE 16, FIG. 2). It is 
surprising with what suddenness the transformation takes place, 
and one wonders what differences in climatic factors can exist 
which produce so marked and so sudden a change between the 
region just left and that which lies beyond. So profuse is the 
moss drapery that one is inclined to term this the moss zone. 
Such a designation would, however, be inaccurate, as subsequent 
investigation will show. 
* For a full account of the lichens and mosses collected in the Tjibodas 
forest see, The altitudinal distribution of lichens and mosses on Mt. Gedeh, 
Java, to be published in The Ecologist, January, 1924. 
