XXX 



GLOSSARY OF BOTANICAL TERMS. 



Tessellated, in little squares or 1 

 checkers, like a chess-board. 



Testa, 168. 



Tetramerous, of four parts or con- 

 stituent portions. 



T/wrn, see Spine. 



Throat, the passage into the tube of 

 a corolla. 



Thyrse, 69. 



Thyrsoid, resembling or in the form 

 of a thyrse. 



Tomentose, downy, covered with fine 

 matted pubescence. 



Toothed, divided so as to resemble 

 teeth. 



Torose, uneven ; alternately elevated 

 and depressed. 



Tortuous, bent in various directions. 



Torulose, slightly torose. 



Torus, 83. 



Transverse, transversely, across, 

 crosswise. 



Trichotomous, 3-forked. 



T/'icoccous, of three cocci or separa- 

 ble indehiscent carpels. 



Trifarious, pointing in three direc- 

 tions. 



Trifid, 3-cleft. 



Trifoliate, 3-leaved, see Ternate. 



Trigonous, 3-cornered. 



Trilobate, 3-lobed. 



Tiilocular, 3-celled. 



Tripartite, 3-parted. 



Tripinnate, thrice-pinnate, when the 

 leafets of a bipinnate leaf become 

 pinnate. 



Tnpinnatifid, pinnately divided, with 

 the primary divisions twice pinna- 

 tifid. 



TripUnerved, with three principal 

 nerves from the base. 



Triquetrous, having three sides or 

 angles. 



Tritenia'e. thrice ternate, when the 

 leafets of a, biternate leaf become 

 ternate. 



Truncate, having a square termina- 

 tion as if cut off. 



Tube, a pipe or hollow cylinder, ap- 

 plied to that of a monopetalous 

 corolla formed by the united claws. 



Tuber, 119. 



Tuberculatc, covered with knobs or 

 tubercles. 



Tuberous or tuberiferous, bearing 

 tubers, 119. 



^ shaped like a tube; in a 



compound flower, the florets which 

 are not ligulate are called tu- 

 bular. 



Tuft, a branch growing from the 

 same root. 



Tumid, swelling or enlarged. 



Tunicate, coated with concentric 

 layers ; as the Onion. 



Turbinate, shaped like a top or pear. 



Tu,rion, a thick, tender young shoot ; 

 as of Asparagus. 



Twin, two of the same kind growing 

 together. 



Twining, winding round and as- 

 cending spirally. 



Umbel, 66. 



Umbellate, like an umbel. 



UmbeUet, a partial umbel ; one of the 



subdivisions of a compound umbel. 

 Umbelliferous, bearing umbels. 

 Umbilicate, marked with a central 



depression. 



Unarmed, without prickles or thorns. 

 Uncinate, hooked, hook-shaped. 

 Undulate, wavy, serpentine, gently 



rising and falling. 

 Unequal, the parts not corresponding 



in length, form, &c. 

 Unguicidate, inserted by a claw, 82. 

 Uniform, in one form or manner. 

 Unilateral, growing all on one side, 



or with the flowers leaning to one 



side. 

 Unisexual, of one sex, staminate or 



pistillate only. 

 Urceolate, pitcher-shaped, swelling 



in the middle and slightly con- 

 tracted at top. 

 Utricle, 145. 



Valvatc aestivation, when the sepals 



or petals are folded together and 



fit by their margins only. 

 Valves, the segments or parts of a 



seed-vessel into which it finally 



separates, 136; also the leaves 



which make up a glume or spathe. 

 Valvular or valved, consisting of 



valves or seed-cells. 

 Var. (varietas}, a variety of a species, 



not specifically distinct. 

 Vaulted, arched over, with a concave 



covering. 

 Veined, having the divisions of the 



petiole irregularly branched on the 



under side of the leaf. 



