BOTANICAL NOMENCLATURE. 461 



Tinctorum. Of the dyers. Genitive plural of tinctor, a dyer. 



Toluifera. Balsam tree. Said to be formed from Tolu (Santiago de Tolu, 



in New Granada), whence balsam was first brought, + /<?ro, to bear. 

 Tomentosus-a-um. Tomentose. Woolly. Lat. tomentum, stuffing. 

 Toxicodendron. From Gr. to^ikov^ poison, -\- d^vSpov^ tree ; poisonous 



shrubs. 

 Tradescantia. Spiderwort. Named for John Tradescant, gardener to 



Charles I. 

 Tragacantha. Tragacanth. The ancient Greek name for the Astragalus. 



From Tpayoq^ a goat, + arnvtia, a thorn ; in allusion to the character 



of the gummy exudation. 

 Tragopogon. Salsify. Goat's beard. Ancient Greek name of a plant. 



From rpoyoc, a goat, + ^rwyoj', beard ; alluding to the pappus. 

 Triandrus-a-um. Having three stamens. Gr. rpn^, three, + dv//p, man. 

 Tricolor. Having three colors, tricolored. Lat. tres, three, -\- color, color. 

 Tricuspidatus-a-um. Ending in three points. Lat. tricuspis, three-pointed. 

 Trifolium. Clover. Trefoil. The ancient Latin name. Three-leafed. 

 Trilisa. Vanilla-leaf. Deer's tongue. Name an anagram of Liatris. 

 Trillium. Wake robin. Birthroot. From Lat. tres, three ; all the parts 



being in threes. 

 Triphyllus-a-um. Having three leaves. Gr. rpel^, three, (pv/.?j)u, leaf. 

 Triticum. Wheat. The ancient Latin name. From tritus, past participle 



of tero, threshed or ground. 

 Trivialis-e. Common, trivial. Lat. tres, three, + via, road ; three roads. 



growing along many roads. 

 Tsuga. Hemlock. The Japanese name of one of the species. 

 Tuberosus-a-um. Tuberous. Lat. tuber, lump, tumor. 

 Turpethum. Turpeth. From Persian tirbid, a cathartic; tiirbad, a purga- 

 tive root. 

 Tussilago. Coltsfoot. The ancient Latin name. From tussis, a cough, for 



which the plant is a reputed remedy. 

 Ulmaria. Queen of the meadow. From iilnms, elm; hence elm-like. 

 Ulmus. Elm. The classical Latin name. 

 Umbellatus-a-um. Umbellated, like an umbel. Lat. umbella, little shade, 



umbel. 

 Umbellularia. Bay-laurel. From umbelliila, little umbel, a late Latin 



diminutive of umbella. 

 Uniflorus-a-um. Bearing one flower only. Lat. unus, one, -f flos, flower. 

 Urginea. Squill. Sea onion. From Lat. urgeo, to press; alluding to its 



flattened seeds. 

 Urtica. Nettle. The ancient Latin name. 

 Usitatissimus-a-um. Most useful, common, familiar; superlative degree of 



usitatus. 

 Ustilago. Smut, Bunt. An ancient Latin name of a plant. 

 Uva-ursi. Bearberry. From Latin uva, a grape, -I- iirsi, of a bear. 



