GLOSSABY. 377 



Tetradynamous . Applied to stamens when (as in Gruoifera) there are six, four of 

 them longer than the two others. 



Tetragonous. Pour-angled. 



Tetramerous. Consisting of four parts. 



Tetrandrous. Having four stamens, free from the pistil. 



Thyrsoid. Applied to an inflorescence that takes the form of a narrow panicle, 

 widest about the middle. 



Thyrsus. A narrow panicle, with its widest part about midway between its base 

 and its apex. 



Tomentose. Covered with tomentum. 



Tomentum. Short, soft, dense, cottony hairs. 



Torose. Swollen at intervals. 



Tortuous. Irregularly bent and twisted. 



Torulose. Slightly swollen at intervals. 



Torus. The extremity of the peduncle (above the calyx) upon which the corolla, 

 stamens, and ovary are inserted. It is sometimes little more than a mere 

 point or minute hemisphere, but is often more or less elongated, thickened, or 

 otherwise enlarged. It must not be confounded with the receptacle of inflor- 

 escence in a composite flower. 



Translucent. Semi-transparent. 



Triandrous. Having three stamens that are free from the pistil. 



Trichotomous. Divided into three nearly equal branches springing from a common 

 point. 



Trifid. Applied to a leaf that is divided into three lobes by linear sinuses extending 

 about half-way to the base. 



TrifoLiolate. Having three leaflets. 



Trigonous. Obtusely three-angled. 



Trimerous. Composed of three similar parts. 



Trimorphic. Having, or passing through, three different forms or stages. 



Triquetrous. Acutely three-angled, the sides of the triangle having concave faces. 



Truncate. Abruptly terminated, as if the extremity were cut off. 



Tuber. A short, thickened internode or portion of an underground stem, beset with 

 modified axillary buds or eyes. 



Tubercle. A minute swelling. 



Tuberoulate. Having small knobby projections or excrescences. 



Tumid. Having a blistered appearance ; swollen. 



Turbinate. Top-shaped. 



Turgid. Swollen or distended. 



Uliginal. Growing in swamps or muddy places. 



Umbel. A flower-cluster in which several pedicels spring from the same point and 



are of about the same length. An umbel is said to be simple when each of its 



branches or rays bears a single flower ; compound when each ray bears a partial 



umbel or umbellule. 

 Umbellate. Applied to an inflorescence when it takes the form of an umbel. 

 Umbellule. A partial or secondary umbel. 

 Uncinate. Hooked. 



Undulate. Wavy ; waved obtusely up and down. 



Unguiculate. Applied to petals when the lower part forms a stalk or claw. 

 Unifoliolate. Having one leaf. 



Unisexual. Applied to flowers in which either stamens or pistil are wanting. 

 Urceolate. Hollow and contracted at or below the mouth, like' an urn. 

 Utricle. A thin, rather loose pericarp, containing a single seed; also any thin 



bottle-like or bladder-like body. 

 36 



