738 PHARMACEUTICAL BOTANY 
TrER’MINAL.—Pertaining to the end or apex. 
Ter’NATE.—In threes. 
TeRrRES’TRIAL.—Growing on land. 
Trs’sELLATED.—Marked like a checkerboard. 
Tes’rA.—The outer seed coat. 
Tretra.—A prefix of Greek origin signifying four. 
Trt’rAp.—A group of four immature pollen grains cut off by pollen mother cells. 
- 'TeTRACAR’PELLARY.—Having four carpels. 
TeTRADYN’AMouS.—Having six stamens, four of which are longer than the other 
two. 
TreTRAG’ONAL.—Four-angled. 
TETRAM’EROUS.—-Said of flowers that have the number four or multiple thereof 
running through their various whorls. 
TetTRAN’pROus.—Having four stamens. 
TrTRAPET’ALOUs.—Having four petals. 
TEeTRASEP’ALOUS.—Having four sepals. 
Tr’ TRARCH.—Said of a radial vascular bundle having 4 xylem and 4 phloem arms 
alternating with one another. 
Trr’rAsporEs.—Applied to the asexually produced spores of the Mi loridee group of 
Red Alga on account of being formed in groups of four in the mother cell. 
Trerras’ticHous.—Said of leaves when they are arranged in four vertical rows 
upon a stem. 
TuHaA.’amus.—Another name for receptacle. 
TuHAL’Lus.—A plant. body showing no differentiation into root, stem, or leaf. 
Tuermor’RropisM.—Response of living matter to the stimulus of heat or cold. 
THorN.—See Spine. 
THroAT.—The opening into the tube of a gamosepalous asta or gamopetalous 
corolla. 
Tuyr’sus.—A compact panicle of flowers like the Lilac or Sumac. 
Tis’suz.—An aggregation of cells of similar source, structure and function in inti- 
mate union. 
To’MENTOsE.—Covered with dense, matted, wooly hairs. 
Tor’ruous.—Bent or twisted irregularly. 
To’rus.—Another name for receptacle. 
Tra’cHEeA.—An elongated cylindrical or prismatic tube wath open ends, found in 
the xylem of the fibrovascular system and serving for the conduction of crude 
Sap. 
Tra/cuer.—An elongated, taper ended, tubular cell with closed ends and pitted 
walls found in the xylem and serving for water conduction and support. 
‘TRANSPIRA'TION.—The giving off of watery vapor by the plant. 
Tri.—Three. 
TRIADEL’PHOUs.—Having the filaments in 3 sets. 
TriAn’pRous.— Possessing three stamens. 
Tri’ARcH.—Applied to a radial fibrovascular bundle having three xylem and three 
phloem arms alternating with one another. 
TrICAR’PELLARY.— Possessing three carpels. 
Tricu’ostAst.—An internal hair, like those projecting into the intercellular-air- 
spaces of the stems of certain Water Lilies. 
Tricu’ocyne.—A slender appendage to the carpogonium. 
