GLOSSARY. 



Testa : the outer (and usually the harder) coat or shell of the seed. 



Tetra- (in words of Greek composition): four; as, 



Telracdccous : of four cocci or carpels. 



Tetradynamous : where a flower has six stamens, two of them shorter than 



the other four, as in Mustard. 

 Tetragonal : four-angled. Tetrdgynous : with four pistils or styles. 

 Tctrdmerous : with its parts or sets in fours. 

 Tetrandrous : with four stamens. 

 Theca : a case ; the cells or lobes of the anther. 

 Thorn : see spine. 

 Thread-shaped: slender and round, or roundish like a thread ; as the filament 



of stamens generally. 

 Throat : the opening or gorge of a monopetalous corolla, &c, where the bor- 

 der and the tube join, and a little below. 

 Thyrse, or Thyrsus : a compact and pyramidal panicle. 

 T6mentose : clothed with matted woolly hairs (tomentum). 

 Tongue-shaped : long, flat, but thickish and blunt. 

 Toothed : furnished with teeth or short projections of any sort on the margin ; 



used especially when these are sharp, like saw-teeth, and do not point 



forwards. 

 Top-shaped : shaped like a top, or a cone with its apex downwards. 

 Tdrose, Tdrulose: knobby ; where a cylindrical body is swollen at intervals. 

 Torus: the receptacle of the flower. 

 Tri- t in composition : three ; as 



Triadelphous : stamens united by their filaments into three bundles. 

 Tridndrous: where the flower has three stamens. 



Trichdtomous : three-forked. Tricdccous : of three cocci or roundish carpels. 

 Tricolor: having three colors. Tricdstate: having three ribs. 

 Tricuspidate : three-pointed. Tridfntate: three-toothed. 

 Triennial: lasting for three years. 

 Trifd: three-cleft. 



Trifoliate: three-leaved. Trifdliolate : of three leaflets. 

 Trifoi'cate : three forked. Trigonous : three-angled, or triangular. 

 Trigynous: with three pistils or styles. Trijugate: in three pairs {jugi). 

 Trildbed, or Trilobate : three-lobed. 

 Trildcular : three-celled. 



Trimerous : with its parts in threes, as Trillium. 

 Trin€i-vate : three-nerved, or with three slender ribs. 

 Tricecions : where there are three sorts of flowers on the same or different 



individuals ; as in Red Maple. 

 TriphyJlous : three-leaved ; composed of three pieces. 

 Tripinnate: thrice pinnate ; Tripinndtijid : thrice pinnately cleft. 

 Triple-ribbed , Triple-nerved, &c. : where a midrib branches into three near 



the base of the leaf, as in Sunflower. 

 Triquetrous : sharply three-angled ; and especially with the sides concave, like 



a bayonet. 

 Tris€rial, or Triseriate : in three rows, under each other. 

 Tristtchons: in three longitudinal or perpendicular ranks. 

 Trisulcate : three-grooved. 

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