146 
TRIOSTEUM-ULEX. 
recurved, as long as the calyx ; leaves rhomboid, on short petioles ; flowers 
small, berries red, 12-18 i. 
grandijio'rum^ peduncle a little inclined, nearly erect ; flower solitary ; petals 
spatulate, connivlent at the base, much longer than the calyx ; leaves broad 
ly rhomboid, ovate, sessile, abruptly acuminate. Rocky banks of streams. 
Flower much larger than in any of the preceding species, varying from 
white to rose-colour ; stem 8-12 i. 
TRIOSTEUM. 5—1. (^Caprifolia.) 
perfolia'tum, (fever-root, p. J. Ij..) leaves connate, spatulate, lanceolate, acumi- 
nate, pubescent beneath, margin undulate ; flowers 1-3, in the axils of the 
leaves, sessile ; berries purple, or yellow ; the root is medicinal. Rocky 
woods. 2-3 feet high. N. Y. to Car. 
TRIPHORA. 18—1. {OrchidecR.) [From the Greek, signifying to bear three flowers.] 
pen"dula, (p. S. %.) root tuberous ; stem leafy, about 3-flowered at the sum- 
mit ; leaves ovate, alternate ; flowers pedunculate, stems often in clusters. 
4-6 i. Roots of trees. 
TRITICUM. 3—2. (Gramineoi.) [From tero, to thresh.] 
cBsti'vum, (winter wheat, J. J^.) calyx glume 4-flowered, tumid, even, imbri- 
cate, abrupt, with a short compressed point ; stipule jagged ; corollas of the 
upper florets somewhat bearded. There are several varieties of this species 
which were introduced by culture. Ex. 
repens, spikelet oblong, 5-flo wered, glumes subulate, many-nerved ; florets acu- 
minate ; leaves flat ; root creeping. Fields. A troublesome weed. 
TROLLIUS. 12—13. {RanunculacecB.) [From the German, signifying to roll; so called from 
Hit: roundness of the flower.] 
america'nus, (globe-flower, y. M. '21-.) leaves palmate ; sepals 5-10, spreading ; 
petals 5-10, shorter than the stamens ; flowers large, terminal ; resembles a 
Ranunculus. Wet grounds. 
TROP^OLUM. 8—1. (Gerania.) [From iropazon, a warlike trophy.] 
ma'jus, (nasturtion, Indian cress, y. and r. Ju, ©. and %.) leaves peltate, sub- 
repand; petals obtuse, some of them fringed. Ex. 
TROXIMON. 17—1. (dehor ace (B.) [A Greek word, signifying eatable.] 
glau'ciim, (y, Ju. (^.) scape 1-flowered ; leaves lance-linear, flat, entire, glau- 
cous ; divisions of the calyx imbricate, acute, pubescent. 
TULIPA. 6 — 1. (LiliacecB.) [The name is said to be of Persian origin, and to signify a turban.] 
suave' olens^ (sweet tulip, M. %) small; stem l-flowered, pubescent; flowers 
- erect ; petals obtuse, glabrous ; leaves lance-ovate. Ex. 
gesneria'na, (common tulip, M. '2]_.)steml flowered, glabrous; flower various 
coloured, erect, petals obtuse, glabrous ; leaves lance-ovate. Ex. The va- 
rious kinds of tulips which are cultivated, are only varieties of the geme- 
riana. 
TURRITIS. 14—2. {Cruciferce,.') [From ^Mrrzs, a tower.] 
ova'ta, (w. M. (^.) leaves rough, radical ones ovate, toothed ; cauline ones 
clasping. 
TUSSILAGO. 17—2. {CorymbiferoR.) [From tussis, a cough, and ago, to drive away ; so called 
on account of its medicinal properties.] 
farfa'ra, (colt's-foot, y. Ap. %.) scape single-flowered, scaly; leaves cordate, 
angular, toothed, downy beneath. The flower appears long before the 
leaves. 4-6 i. 
TYPHA. 19—3. (.Typhm.) 
latifo'lia, (cat-tail, reed-mace, Ju. %.) leaves linear, flat, slightly convex be- 
neath ; staminate and pistillate aments close together. Wet. 4-6 i. 
ULDORA. 20—9. (Hydrocharides.) 
canaden"sis, (w. Au. %..) leaves whorled, in threes and fours, lanceolate, ob- 
long or linear, serrulate ; tube of the perianth filiform ; stem submersed, 
dichotomous. Still waters. Ditch moss. Can. to Virg. 
ULEX. 16—10. (LeguminoscB.) 
europe'as, (furze. M. T^-) leaves lance-linear, villose; bracts ovate; branchlets 
erect. 
