Tuck pointing

by fleshy scales that protect the embryo and store food for it. Dry scales forming a papery covering make up the tunic or outer covering. Examples are daffodils, tulips, and lilies. See also rhizomes, roots, tubers, and corms.

true north The direction from any point on the earth to the geographic North Pole.

truncate In botanical terms, ending abruptly, as if cut off, with the apex (or base) straight or nearly so. (Compare with leaf base descriptions of cuneate, obtuse, cordate, auriculate, sagittate, hastate, attenuate, oblique.)

truncate leaf base

trunk The woody portion (including bark) of a tree from ground level usually to the first significant live branch.

trunk line A sewer line that has other sewer branches dispensing into it.

trunk sewer A sewer with many contributing tributary branches that serves as an outlet for a large area.

truss 1. An assemblage of wood or steel members forming a rigid framework usually of triangular shapes. The most common trusses are those used to hold up a roof. 2. A tight cluster of flowers or fruit.

try square A square with its two arms fixed at 90° serving as a guide for marking lines at right angles to an edge or surface, as a measuring device, or as a tool for checking straightness or squareness of edges, faces, members, etc.

tube 1. A small container in which cuttings or seedlings are held. 2. A pipe.

tuber A type of bulb with a short, fat, underground stem flattened, rounded, or irregular in shape. It does not creep like a rhizome and is usually knobby with growth buds. Growth buds (eyes) are usually scale-like with a bud on its axil. Large tubers can be divided and replanted.

tubercle In botanical terms, a small, wart-like or knobby projection or prominence on a plant that is usually distinct in color or texture from the organ on which it is found.

tuberculate A botanical term meaning bearing tubercles.

tuberous Thickened like a tuber.

tuberous roots A type of bulb with thickened roots (not stems as with most bulbs) for food storage. They are much like tubers in appearance but do not have growth buds. They can be divided in the same way as rhizomes and tubers by cutting sections with a portion of the old stem base attached. The growth buds are in the old stems.

tubling A small plant raised in a container called a tube.

tubs Containers holding soil and plant roots that are moveable and usually placed for display of plants.

tubular In botanical terms, a hollow cylinder form.

tuck pointing or tuck and pat pointing or tuck joint pointing Finishing of old masonry

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