(ancient name). Arbideaz. Tuber-bearing low herbs, of few species, in Eu. and W. Asia. Lvs. simple, the petiole sheathed at the base : spathe convolute, va riously colored, mostly including the short spadix : pis tillate fls. at the base. Grown usually as oddities, mostly under the general name of Callas. Some of the species are hardy ; others, as A. Palwslinum, are tender, and require glasshouse treatment. The tender kinds are managed in essentially the same wayas the fancy-leaved Caladiums. Plant the tubers sufliciently deep that roots may form from near the top. Give rich soil, and water freely when growing or in bloom. The hardy species should be well mulched in late fall. They thrive best in partially shaded places and in rich soil. Prop. by nat ural oflsets ; also by seeds or berries, which some spe cies produce freely. Some of the species are acrid poisonous. Monogr. by Engler in DeCandolle’s Mono graphim Phonerogamarum, vol. 2. The following names are in the American trade : albispathum, Nos. 5, 7; alpinum, 6; Arism-um: Arisarum vulgaro ; B3/zuniimcm, 7 ; Canuriense, 7 ; concimiatum, 7; cornutum=i; Corsicum, 1; crini!um= Helicodiceros crinitus ; cylindraceum, 7; Oyprium, 2; defnmcalum, 3; Dioscoridis, 2; Dr(lcunculus=Drac\1n culus vulgaris; elongatum, 5; go-atum,5; immaculatum, 6; inter-medium, 6; Ilalicum, 7; mamlatum, 6; Malyi, 6; marmorutum, 7; nigrum, 5; N01-dmamu', 5; orienlale, 5; Palmslinum, 4; piclum, 1; sanctum, 4; apectabile, 2; Syriacum, 2; ternatum=Pinellia tuberifera; vario latum, 5; vulgare, 6; Zelebori, 6.