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tennanstti ; a bulbous plant of the order Aroideae growing wild
in shady places in mountains. The leaves are parted into 4 on
the petiole. It grows to a height of about 1 ft., and bears flowers
in spathes. The head of the pistils is small and pointed.
517. Arissoma serratum, 77/., Jap. Hebi-no-daihachi,
Mamushi-gusa ; it resembles the preceding in quality. The leaves
are broad and serrated. The stem is covered with a purplish
brown variegation like the colour of a snake, whence the name
is derived.
518. Arissema ringens, Schott., Jap, Musashi-abumi ;
this resembles Arisaema praecox (515). The flowers have the
form of a stirrup, whence the name.
519. Pinellia tuberifera, Ten., Jap. Karasu-bishaku,
Hesobe ; a bulbous plant of the order Aroideae growing abun-
dantly in fields. It is a small weed, but is injurious to other
cultivated plants. The stem grows a height of 7-8 inches,
bearing small long dark purple spathaceous
flowers. The roots
are used as medicine when dried. There is a kind, with the stem
about 1 ft. high, and larger leaves, flowers, and roots, called
Oba-hange.
520. ArisSDma japoniCUm, fil., Jap. Tcnnamho, Yabu-
konniyaku ; a bulbous plant of the order Aroidea3 growing wild
in shady places, being the most common of this family. It
resembles A. serratum (517) in shape, but the leaves have several
divisions. The stems and leaves are quite green, but the spathe
is stripped with purple and provided with a oblong finger-sized
pistil, being followed with small round berries. The roots are
dried and used for medicine, and also to destroy injurious insects.
521. Arissema thunbergii, Blume., var. fofiolis
angustioribus, Jap. Urashima-so ; it resembles A. thunbergii
(516), but the tips of the pistils are slender drooping in the form
of a fishing line. The roots are tuberous.
522. Jap. Tengu-no-karakasa ; a terrestial fungus growing