234 GLOSSARY OF BOTANICAL TERMS. 



TEGMEN or SECUNDINE, the inner covering of the ovule lying 



under the testa. 



TEGMENTA, the outer covering of buds during winter. 

 TEGUMENTA or INTEGUMEIST, the outer covering of an organ, as 



the cellular covering of leaves, or the covering of seed, &c. 

 TENDRILS, the curliog organs by which some plants climb. 

 TEN UTS, delicate, slender, thin. 

 TERCINE, the third inner covering of the ovule. 

 TERETE, nearly round on a transverse section. 

 TERNARY, the arrangement by threes. 

 TERNATE, a compound leaf with three leaflets from the same 



point. 



TESTA, the outer covering of the seed ; primine. 

 TESTACEOUS, of the consistence of a shell. 

 TETRAD YNAMOUS, having four long stamens and 2 short. 

 TETRAGONAL, having four angles. 



THORN, a woody abortive branch, often bearing leaves. 

 THROAT, the orifice of the tube in a calyx or corolla. 

 THYRSUS, a bunch ; a panicle having narrow ends, dense and 



broad in the middle. 



TOMENTOSE, covered with cottony felted hairs, or white down. 

 TOMENTUM, dense white curled hairs. 

 TORULOSE, presenting successive swellings. 

 TORUS, the receptacle on the end of the peduncle. 

 TRACHEAE, tracheiichyma ; vessels with one or more spiral fibres- 



wound spirally in their interior. 

 TRANSVERSE, arranged across. 



TRIANGULAR, with three angles and three flat faces. 

 TRICHOTOMOUS, dividing by threes. 

 TRICOSTATE, three-ribbed. 

 TRIFARIOUS, arranged in three rows. 

 TRIFID, divided into three, but not more than halfway to the 



base. 



TRIFURCATE, divided into three forks. 

 TRIGONOUS, having three angles with the sides convex. 

 TRIPARTITE, deeply divided into three. 

 TRIQUETROUS, having three angles with the sides concave. 

 TRITERNATE, three times ternate. 

 TRUNCATE, blunt, as if cut off. 



TUBE, a tube formed by the cohesion of calyx, corolla, or stamens/ 

 TUBER, an underground fleshy expansion of the stem ; bearing 



buds ; with a store of starch for their support, as in the Potato. 

 TUBERCLES, little swellings or knobs. 

 TUBULAR, hollow, nearly cylindrical. 

 TUNIC, a coat, the covering of the seed. 

 TUMID, swollen. 

 TURBINATE, shaped like a top. 

 TURGID, puffed up, swollen. 

 TWO-EDGED, having two sharp edges. 



