THALLOPHYTA n.
it and structure, including the algæ, fungi, and lichens. The simpler forms, as many blue-green algæ, yeasts, etc., are unicellular and reproduce vegetatively or by means of asexual spores; in the higher forms the plant body is a thallus, which may be filamentous or may consist of plates of cells; it is commonly undif…
TOBACCO n.
(Zoöl.), the larva of a large hawk moth (Sphinx, or Phlegethontius, Carolina). It is dark green, with seven oblique white stripes bordered above with dark brown on each side of the body. It feeds upon the leaves of tobacco and tomato plants, and is often very injurious to the tobacco crop. See Illust. of Hawk moth.…
TOPAZ n.
ral occurring in rhombic prisms, generally yellowish and pellucid, also colorless, and of greenesh, bluish, or brownish shades. It sometimes occurs massive and opaque. It is a fluosilicate of alumina, and is used as a gem.
TOURMALINE n.
iety, but there are also other varieties, as the blue (indicolite), red (rubellite), also green, brown, and white. The red and green varieties when transparent are valued as jewels. [Written also turmaline .]
TREE n.
ot.), an ornamental tree (Ailantus glandulosus) having long, handsome pinnate leaves, and greenish flowers of a disagreeable odor. -- Tree of life (Bot.), a tree of the genus Thuja; arbor vitæ. -- Tree onion (Bot.), a species of garlic (Allium proliferum) which produces bulbs in place of flowers, or among its flowers…