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Shortia rotundifolia Makino.
Gentiana caespitosa Hay.
Origanum vulgare L.
Metanarthecium foliatum Maxim.
Luzula effusa Ruch, spicata D. C.
Carex (5-6 species).
Isachne Clarkei Hook. f.
Agrostis Clarkei, Hook. f .
Calamagrostis arundinacea Roth.
Festuca ovina L.
Arundinaria niitakayamensis Hay.
Lycopodium obscurum Linn.
Botrychium ternatum L.
Cryptogramme Brunoniana Wall.
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II I . A short Sketch on the flora of the island,
Under this heading, the author will say a few words about the flora
of Formosa. Dr. A. Henry gives his opinion about the flora in his « List of
Plants from Formosa (11) », that the flora is essentially of Chinese character,
and there is no peculiar genus in the island. He also remarks that many
Japanese plants are yet to be founds in the mountains and the proportions
given by him will be subject to material alterations.
Since his publication, there have been found many Japanese plants
from the hilly regions, and two peculiar genera have been found, one being
T'a/ira/a/n described by te present author, the other I'iianotrichum, described
by Solereder quite recently. In i908, the writer wrote the'mountain flora of
Formosa, where he mentions that the mountain flora bears much similarity
to the Japanese flora.
It now becomes necessary to make a statistical comparison of the
whole elements of the island flora. As there is no space for particular
accounts of the comparaison, there will be given only the figures showing
the numbers of the elements.
The flora of Formosa, so far as is known to us up to the present time,
contains 2417 species, belonging to 764 genera, including flowering plants and
vascular crytogams. For convenience’s sake, the elements of the flora should
be studied under nine floral regions, namely:
1 . the endemic elements;
2. the Japanese elements ;
3. the nor thern Chinese elements ;
4. the central ’Chinese elements ;
5. the southern Chinese elements ;
6. the Himalayan elements ;
7. the India-plain elements ;
8. the Malayan elements ;
9. the Australian elements.
1 . The endemic elements. — The elements are comparatively numerous,
as is to be expected in an island. There are as many as 413 species or
17 0/0 of the tota l number of the plants found in the flora. They are repre sented
by Oreopanax formosana, Leontopcdium microphyllum, Titanotrichum
Oldhami, Helicia formosana, Chaniecyparis formosensis, Cunninghamia Konishii,
Taiwania cryptomerioides, Pinus formosana and many others, and by the two
endemic genera, Taiwania and Titanotrichum.
2. The Ja,panese elements. — The Japanese elements next to the southern
Chinese elements, are best represented in the flora. They comprise in
all 812 species or 34 <>/o of the whole number. Pseudo-tsuga japónica, Chamaecyparis
obtusa, and Trochodendron aralioides are peculiar to Japan and Formosa.
3. The nor thern Chinese Elements.— These are lessnumerously repre sented
in the flora. They number 220 species or 9 u/o of the whole.
4. The Central Chinese elements. — These are rather numerously
represented in the flora-comprising as many as 686 species or 28 0/0 of the
whole number.
5. The southern Chinese elements. — These are best represented in
the flora. They comprise in all 828 species or 34 0/0 of the whole number.
6. The Himalayan elements. — These elements are here represented
by as many as 164 species or 7 0/0 of the whole number. Most of them are
found in Japan and also in China.
7. The Indian plain elements. — These are rather numerously repre sented
in the flora comprising as many as 621 species, or 25 0/0 of the whole
number.
8. The Malayan elements. — These elements are here represented by
636 species or 26 0/0 of the whole number of the elements.
9. The Australian elements .— These are the least numerously repre sented
in the flora. They number 116 species or 5 0/0 of the whole.
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