TRA TRA I TRA TRI 
Thadkscantia, Linn. In honour of John Tradescant, 
f^ardener to Charles I. Linn. 6, Or. 1, Nat. Or. 
Commelinacex. Interesting plants, succeeding well 
in any rich, light soil ; and readily increased by 
division. Synonyme : 1. T. multiflora. 
caricifOlia . . Blue . . 8, H. Her. P. Texas . . 1835 
congests . . . Blue . . 8, H. Her. P. N. Amer. . 1826 
cordifClia . . .Blue . .6,8. Ev. Cr. Jamaica . 1819 
crassifOlIS . . Blue . . 8, F. Her. P. Mexico . . 1796 
crassulS . . . %Vhite . . 7, S. Her. P. Brazil . . 1825 
discOlOr . . . Blue . .6,8. Her. P. 8. Amer. . 1783 
diuretics . . . Blue . . 6, 8. Her. P. Brazil . . 1825 
divaricatS . . Blue . . 6, 8. Her. P. Trinidad . 1818 
erecta .... Blue . . 7, H. A. Mexico . . 1794 
fuscaw . . Blue . .9,8. Her. P. 8. Amer. . 1820 
geniculata . . Blue . . 7, 8. Her. P. W. Ind. . 1783 
iiidescens . . . Purple . 6, O. Her. P. Mexico . . 1838 
latifOlia . . . Blue . . 10, H. A. Lima . . 1816 
malabaricS . . Purple . 7, 8. Her. P. E. Ind. . . 1776 
multiflora . .Blue . .6,8. Her. P. Jamaica . 1820 
paniculata . . Blue . . 8, 0. B. E. Ind. . . 1816 
parviflOra . . .Blue . .8,8. Her. P. Peru . . 1822 
pilOsa .... Purple . 7, H. Her. P. Louisiana . 1832 
procumbens, 1 . Blue . . 6, 8. Ev. Tr. Trinidad . 1824 
pulchella . . . Blue . . 7, G. Ev. Tr. Mexico . . 1825 
rOsga . . . .Pink . . 6, H. Her. P. Carolina . 1802 
speciosa . . . Blue . . 7, S. Her. P. Mexico . . 1825 
spicata . . . Purple . 8. Her. P. Mexico . . 
subaspOrS . . . Purple . 6, H. Her. P. N. Amer. . 1812 
tuberosa . . .Blue . .7,8. Tu. P. E. Ind. . . 1817 
undata . . . Blue . .6,8. Her. P. Trinidad . 1819 
virglnlca . . . Blue . . 7» H. Her. P. N. Amer. . 1629 
alba . . .White. . 7, H. Her. P. N. Amer. .1629 
caerulsa-alba . Blue wht 7, H. Her. P. N. Amer. . 1629 
pilosa . . .White. . 7i H. Her. P. N. Amer. . 1629 
plena . . . Blue . . 7> H. Her. P. N. Amer. . 1629 
rubra . . .Red . .-7, H. Her. P. N. Amer. . 1629 
Tbaoia, Plumier. In honour of Jerome Bock, gene- 
rally called Tragus, a German botanist. Linn. 21, 
Or. 3, Nat. Or. Enphorbiacem. Chiefly stove annuals, 
and uninteresting — T. cannabtnd, cor culatd, in- 
fSstd, involucrdtd, MercuridlU, pedunculdld, drSns, 
urtic<ef6lld, volubilis, 
TragIum, see PimpinSlld. 
Tragopogon, Linn. From tragos, a goat, and pogon, 
a beard ; in allusion to the long silky beard of the 
seeds. Linn. 19, Or. 1, Nat. Or. Composites. Orna- 
mental plants, succeeding in common garden soil. 
T. porrifolius is the Salsafy of gardens ; it is sown 
and treated >n the same manner as carrots; the 
flavour of the root is mild and sweetish. Syno- 
nymes : 1. T. parv\floru8. 2. T. livescens. 3. T. 
ruber. 
angustifdllus, 1 . Purple . 7, H. B. Italy . . 1823 
campestrls . . . Yellow . 6, H. B. Podolia . .1819 
eSnus .... Yellow . 7, H. B. Hungary . 1824 
crocifOliiis . . . Purple . 6, H. B. Italy . . 1739 
dublus, 2 . . .Pa. yel. . 5, H. B Podolia . .1818 
floccosus . . . Yellow . 5, H. B. Hungary . 1816 
major .... Yellow . 5, H. B. Austria . . 1788 
mutabllls . . . Pale . . 5, H. B. Siberia . . 1816 
orientalls . . . Yellow . 6, H. B. Levant . . 1787 
porrifdllus . . . Purple . 5, H. B. England 
pratensis . . . Yellow . 5, H. B. Britain . . 
pusIllQs .... Yellow . 6, H. B. Iberia . . 1820 
rds6us, 3 . . . Red . . 5, H. B. Siberia . . 1826 
imdulatus . . . Wht. yel. 5, H. B. Crimea . . 1790 
villosus .... Pur, yel. . 5, H. B. Spain . . 1794 
TragSpyrum, Bieberstein. From tragos, a goat, and 
pyroi^\fh.esX. Linn. 8, Or. 3, Nat. Or. Poly^onacecs. 
Ornamental dwarf shrubs, thriving in a mixture of 
peat and sandy loam ; and increased by layers in 
spring. Synonymes: 1. Polygonum crispulum, cau- 
casicum. 2. P.frutescens. 3. P. polygarnum, parvi- 
folium. 
buxifdlium, 1 . . White . . 7, H. De. 8. Siberia . . 1800 
lanceolatum, 2 . Pink . . 7» H. De. 8. Siberia . . 1778 
polygarnum, 3 . Pink . . 7, H. De. 8. Carolina . 1810 
Transversely -FLBX uosE, waved in a cross direction. 
Trapa, Linn. Abridged from calcitrapa, the Latin 
name of an instrument called caltrops, furnished 
with four spines, formerly used in war to impede 
the progress of cavalry ; the fruit of some of the 
species is furnished with four spines. Linn. 4, Or. 
1, Nat. Or. Onagracece. Aquatic plants, requiring 
a rich, loamy soil, and to be grown in a cistern, or 
large pot or tub of water; increased by seeds. 
The large seeds of T. bispinosa are sweet and eatable; 
they form an extensive article of cultivation. In 
Cashmere and other parts of the East, they are 
common food, and known under the name of Sin- 
ghara nuts. 
[ 317.] 
bicornis . . .White. . 7, G. Aq. A. China . .1790 
bispinosS . . . White . . 7. S. Aq. A. E. Ind. . .1822 
natans .... Wht. pur. 7, H. Aq. A. Europe . . 1781 
quadrispinOsd . . White . . 7, S- Aq, B, £. Ind. . . 1823 
Trapeziform, shaped like a trapezium. 
Traveller’s jov, see Clematis Vitalbd. 
Traveller’s joy, see ClSmdtis ViOrnd. 
Treacle mustard, see ClypSbld. 
Tree celandine, see Boc'cOnld frutSscens. 
Tree mallow, see Lavaterd arbUrSd. 
Tree of sadness, see Nyctdnthes arbor tristis. 
Tree onion, see Allium prolifSrum. 
Tree sorrel, see RumSx Lundrtd. 
Trefoil, see TrifOlinm. 
Trembling american-tree, see PGptilds trSmiild. 
Tremella, Dillenius. From tremo, to tremble; in 
allusion to the gelatinous texture of the plants. 
Linn. 24, Or. 9, Nat. Or. Fungi. Found growing 
on fallen branches of trees — T. dlbldd, biparaslticd, 
cerebrind, clavariesfBrmls, clavdtd,Jimbridtd,folidced, 
F. violdcSd, intumSseSns, mesentSried, sarcoidgs. 
Trentepohlia, Agardh. In honour of M. Trentepohl, 
an obscure German botanist. Linn. 24, Or. 7, 
Nat. Or. Alges. Found on rocks, on the sea-coast— 
T. aurSd, A. iliciedid, pxilchslld, P. chalybcsd, pur- 
pdrSd. 
Trkvirania, Willdenow. In honour of Lud. Christ. 
Treviranus, M.D., professor of botany in the uni- 
versity of Bonn. Linn. 14, Or. 2, Nat. Or. Oesne- 
raceas. This species is extremely handsome when 
in flower. It requires to be grown in a light, ri’ch 
soil, and when the blossoms have withered, the 
plants should not have any more water till the 
roots begin again to vegetate ; when they must be 
taken out of the pots and divided. After they are 
potted, they require moisture and heat to make 
them grow and flower in perfection. Synonyms ; 1 . 
Cyrilla pulchella. T. coccinea. 
pulchella, 1 . . Scarlet . 8, 8. Her. P, Jamaica . 1778 
Trevoa, Hooker. Trevo, the name of a Spanish 
botanist. Linn. 6, Or. 1, Nat. Or. Rhamnacex. 
Interesting plants, thriving in sandy loam and 
peat; and increased by young cuttings, in sand, 
under a glass. 
quinquenervia . White. . 6, G. Ev. 8. Chile . . 1827 
trinervis . . . Grn. yel. . G. Ev. 8. Chile . . 1 828 
Trewia, Linn. In honour of C. J. Trew, of Nurem- 
berg, a botanical author. Linn. 22, Or. 12, Nat. 
Or. Trerviaceoe. This species succeeds well in sandy 
loam and peat ; and is readily increased by cuttings, 
in sand, under a glass, in heat. Synonyms ; 1. T. 
macrophylla. 
nudiflorS, 1 . . 8. Ev. 8. E. Ind. . . 1796 
Triandrous, having three stamens. 
Trianthema, Linn. From treis, three, and anthos, a 
flower ; flowers usually disposed in threes. Linn. 
5, Or. 1, Nat. Or. Portulacaceee. Plants of little 
interest. Any common garden soil suits them; 
seeds. 
decandrH . . . Green . . 7, 8. A. E. Ind. . . 1824 
monogynS . .Pur. grn. . 7, 8. A. Jamaica . 1829 
pentSudrll . . . 7» G. Ev. Tr. Arabia . . 1820 
obcord2tS . . Green . . 7> S. Ev. Tr. £. Ind. . . 1816 
Trias, Lindley. From trias, growing in t'hrees ; the 
floral envelopes are so arranged. Litm. 20, Or. 1, 
Nat. Or. OrchidacecB. Small plants, growing best 
when treated as the Burlingtonits. 
oblong^ .... Grn. yel. . 8. Epi. E. Ind. . . 1837 
racemosS ... Grn. yel. . 8. Epi. £. Ind. . . 1837 
Tribrachia, see BolbophyUdm. 
TrIbulus, Linn. From Irejj, three, and ballo, to pro- 
ject ; each carpel is armed with three, and sometimes 
four prickly points. Linn. 10, Or. 1, Nat. Or. 
Zygophyllacex. The annual species of this genus 
may be sown on a moderate hotbed, in spring ; and 
the young plants, when of sufficient size, planted 
in a sheltered situation in the open border. T. 
cistoides succeeds best in a mixture of loam and 
peat, and may either be increased by cuttings or 
seeds. 
albus .... Wliite . 6, 8. A. Guinea . . 1826 
cistoides . . . Yellow . 7, 8. Ev. Tr. 8. \mer. . 1752 
laniigindsus . . Yellow . 6. G. Tr. A* E. Ind. . . 1822 
littoralis . . . . 7, S. Ev. Tr. N. Holh .1821 
maximus . . . Yellow . 6, 8. Tr. A. Jamaica . 1728 
subinermis . . . Yellow . 6, G. Tr. A. Thibet . .■ 1820 
terrgstris . . . Yellow . 6, H. Tr. A. 8. Eur. . .1596 
trijugatus . . . Yellow . 6, G Tr. A. Georgia. . 1819 
