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233. Citrus decumana, L. , var. , Jap. Jaga-tara-mikan ;
an evergreen tree of the order Aurantiaceae cultivvted in warm
regions, being about 10 fts. high, with large leaves as those of the
preceding. It blooms in summer and bears orange red fruits in
winter. They are thick-skinned, being about 5 inches in diameter
and 2^ inches in height, and are sweet and juicy.
234. Citrus nobilis, L. t var., Jap. Kofi-mifcan, Kofi ;
an evergreen tree of the order Aurantiaceae cultivated in warm
regions, being harder than the mandarin orange. It is about 10
fts. high, spreading over a space of more than ten steps, yielding
many fruits. The fruits are smooth and thin skinned, and though
moreacid than the mandarin orange yet they are noted for ripening
earlier than others. When they are kept till March or April, they
become very sweet. There are two varieties, one yellow and the
other red.
234. b. Citrus nobilis' L., var., Jap. Beni-mikan ; the
fruits of this species are round, flat, and beautiful with a smooth
thin red skin. They are sweet and juicy. Those of the variety
called Beni-koji resemble them very much in appearance, but are
larger and inferior in taste.
235- Citrus bigaradia, Dupam., Bitter orange, Jap.
Daidai, Zadaidai ; an evergreen tree of the order Aurantiaceae,
being about 15 fts. high. Its flowers bloom in summer and its
yellow fruits ripen in winter. "When left on the branches till the
following year they turn green again so they are called Kwaiseito
;
which means turning-green. The variety called Kabusu resembles
much this. Both are round with a diameter of about 24
inches. The Juice is pressed and used as vinegar, and is very
strong. The young
fruits are preserved in sugar, and is used in
place of Marubushukan (241). The ripe fruits are also preserved
in syrup. From the rind a fragrant oil called Tvhiyu (orange oil)
is obtained.
235. b. Citrus aurantium, Risso., var., Jap. Amadaidai
; this resembles the Kabusu orange in shape and colour.