TRI TRI 
TRI TRI 
Taginatum, 18 . Pa. yel. . H. Her. P. Switzerl. . 1819 
vesiculosum, 19 . Red . . 6| H. A. Hungary . 1805 
Wormskidldn . . Purple . 8, H. A. . 1830 
arvSnse, A. grdclie 2, cyathifbllam, filifSrmg, Jimbri- 
dtdm, fragifgrUmt. glomerdtUm, resupindtOm, apu- 
mdadm, atridtnm, st^ocdtBm, tridentdium. 
Tkiglochin, Linn. From treia, three, and glochin, a 
point ; in allusion to the three angles of the capsule. 
Linn. 0, Or. 3, Nat. Or. Juncaginacece. These 
plants are found in marshy situations. T. bulboaum 
is increased by offsets, all the other species by 
division, 
Barreligrl . . . Green . 7i H. Her. P. Italy . . 1820 
bulbosum . . .Purple . 10. G. Bl. P. C, G. H. . 1806 
decipiens . . . Green . 7» G. Her. P. N. HolL . 1820 
elatum . . . .Green . 6, H. Her. P. N. Amer, . 1818 
marltimum . . Green . 6, H. Her. P. Britain . . 
p^ustre . . . Green . 7. H. Her. P. Britain . . 
Dicksfinll . . Green . 7i H. Her. P. England . 
Trigonal, having three angles. 
Trigonella, Linn. From treia, three, and gonu, an 
angle ; the vexillum of the flower is flat, while the 
wings spread and give it a triangular appearance. 
Linn. 17, Or. 4, Nat. Or. Leguminoaa;. These plants 
are not very ornamental. They all succeed best 
in alight sandy soil ; the perennial kinds are readily 
increased by dividing the plants at the root, or 
by seeds; while the annual kinds only require 
sowing in the open border in spring. The seeds 
of T. Fanumgrcecum are used in fomentations, for 
softening, maturing, and dispersing tumours. Sy- 
nonymea : 1. Melilotua precumbena. 2. M. caruleua. 
3. Trigonella Jlexuoaa, 4. Trifolium ornithopodioidea. 
6. Trigonella media. 6. M. hamoaa, uncinata. 
»gyptI4c& . . . YelloTT . 7 , H, Tr. A. Eg\'pt . . 1818 
Besseri&na, 1 . . Blue . . 7. H. A. Podolia . . 1810 
ceerules, 2 . . . Blue . . 7, H. A. SwitzerL . 1562 
cornicul&tA. . . Yellow . 6, H. A. S. Eur. . . 1597 
ezculentA . . . Yellow . 7, S. A. E. Ind. . . 1815 
Fischeriana, 3 . Yellow . 7, H. A. Tifliz . . 1818 
Foenumgracum . White . 7, H. A. Montpel. . 1697 
hybrldil .... Yellow . 7. H. De. Tr. France . . 1806 
li'ttoralis . . . Yellow . 7, H. A. Sicily . . 1816 
nooNpelljct . . YeLow . 6, H. Tr. A. MontpeL . 1710 
omitnopodiolde8,4 Red . . H. Tr. A. Britain . . 
omithoryncbtis . Yellow . 7, H. A. Russia . .1818 
platycSrpds . . Yellow . 7, H. A. Siberia . . 1741 
pinnatlflda, 5 . . Yellow . 7, H. Tr. A. Spain . . 1801 
polyceratft . . . Yellow . 8, H. A. S. Eur. . .1759 
prostr&U . . White . 7. H. Tr. A. S. France . 1818 
rutbenica . . . Yellow . 6, H. De. Tr. Siberia . . 1759 
uncinau, 6 . . Yellow . 7> H. A. Tauria . . 1798 
calllcirda, cancellilld,JlexuOsd, gladidtd, hamOad, api- 
nCsd, atridtd, tlnula. 
TrigO.sIa, Aublet. From treia, three, and gonu, an 
angle, the fruit is three-angled, three-valved, and 
three-celled. Linn. 16, Or. 2, Nat. Or. Celaatracea. 
For culture and propEigation, see Tretvia. 
mOllIs .... Yelsh. wht. S. Er. S. Brazil . . 1823 
villusa .... Yel. red . S. Ev. S. Cayenne . 1820 
TRiGONintuM, Lindley. From trigona, a triangle, and 
eidoiT^ke ; in allusion to the triangular form of 
several parts of the plant. Linn. 20, Or. 1, Nat. Or. 
Orchidaceip. This is rather an interesting genus of 
easily cultivated, though slow growing plants. 
They require to he grown in good flbruus peat, 
raised a little above the pot, which must be 
thoroughly drained. 
acuminStum . . Straw col. . S. EpL Demerara . 1834 
acutum ' . . . . S. Epi. Demerara . 
EgertonianQm . . Pa. bm, . S. Epi. Demerara . 
obtusum .... Orange . . 6, S. Epi. Demerara . 1834 
Triguera. Cavanilles named this genus after D. 
Trigueros, a Spanish botanist who first discovered 
the plant. Linn. 5, Or. 1, Nat. Or. Malvacece. For 
culture and propagation, see Verbaacum. Synonyme ; 
1. Verbaacum Oabeckia. 
ambrosUcS, 1 . Purah. vio. 7. H. A. Spain . . 1752 
Trioynous, having three styles. 
Trillium, Linn. From trilix, triple ; the calyx has 
three sepals, the corolla three petals, the pistil 
three styles, and the stem three leaves. Linn. 6, 
Or. 3, Nat. Or. Melanthaceae. Curious little tuberous 
rooted plants, succeeding best in a bed of peat soil, 
and rather slowly increased by dividing the roots, 
or by seeds. The roots of all the species are vio- 
lently emetic, and their mawkish, rather nauseous 
berries, are at least suspicious. Synonymea : 1. T. 
rhomboideum. 2. T. pendulum. B T. pictwn. 4. 
T. erythrocarpum. 5. T. erectum var. 6. T. puaillum. 
Catesb^ . . . Red . . 6, H. Tu. P. Carolina . 1820 
cernQum . . . White . . 4, H. Tu. P. N. Amer. . 1 758 
dlscOlOr . . . . Green . . 5, H. Tu. P. Georgia. . 1831 
erectum, 1 . . . Brown . 4, H. Tu. P. N. Amer. . 1759 
album . . . White . . 4, H. Tu. P. N. Amer. . 1700 
viridiflOrum, 2 . Pa. gm. . 4, H. Tu. P. Canada . . 1805 
erythrocarpum, 3 . Red wht. . 5, H. Tu. P. N. Amer. . 1811 
grandiflorOm, 4 . White. . 7, H. Tu. P. N. Amer. . 1799 
nervosum . . . Red . . 4, H. Tu. P. Georgia. . 1820 
obovatum . . . Bed . . 4, H. Tu. P. Canada . . 1810 
ovatum .... Pa. pur. . 5, H. Tu. P. N. Amer. . 1812 
pendulum, 5 . . White. . 5, H. Tu. P. N. Amer. . 1805 
pefiolatum . . . Brown . 4, H. Tu. P. N. Amer. . 1811 
pumilum, 6 . . Bed . . 6, H. Tu. P. Carolina . 1812 
sessile .... Brown . 4, H. Tu. P. N. Amer. . 1759 
styldsum . . . Red . . 4, H. Tu. P. Carolina . 1823 
undulatam . . . Rod . . 4, H. Tu. P. N. Amer. . 1818 
Trilocular, having three cells. 
Trinia, Hqffmann. In honour of Dr. Trinius, a 
famous Russian botanist. Linn. 5, Or. 2, Nat. Or. 
Umbelliferae. Worthless hardy biennials. Syno- 
nymea: \. Pimpinella dioica. 2. P.dichotoma,ramo- 
aiaaima, glauca. 3. T. Henningii — T. Hqffmdnnl 1, 
Kitaibill 2, vulgdria 3. 
TriOdIa, R. Brown. From treia, three, and odoua, 
teeth ; the palea. Linn. 3, Or. 2, Nat. Or. Graminece. 
A perennial hardy grass, increased by seeds. Sy- 
nonyme: 1. Poa decumbena — T. dectlmbSna. 
TriopterIs, Linn. From treia, three, and pteron, a 
wing; the carpels are each furnished with three 
wings. Linn. 16, Or. 6, Nat. Or. Malpighiacea. A 
genus of very elegant twiners, extremely difficult 
to bring into flower in this country. They grow 
well in a mixture of loam and peat ; and cuttings 
of the ripened wood will root in sand, under a glass, 
in heat. 
jamaicensis . . Yellow . S. Ev. Tw. Jamaica . 1822 
serIcSi .... Yellow . S. Ev. Tw. S. Amer. . 1823 
TriSsteum, Linn. From treia, three, and oaleon, a 
bone, in allusion to the three hard seeds. Linn. 5, 
Or. 1, Nat. Or. Caprifoliacea. The species thrive 
well in a light rich soil ; and are increased by 
cuttings, or by parting at the roots. T. perfoliatum 
is a mild cathartic. Its dried and roasted berries 
have been used as coffee. 
anguatifdllum . . Yellow . 6, H. Her. P. Virginia . 1699 
perfoliatum . . Dk. red . 6, H. Her. P. N. Amer. . 1730 
Tripbtalous, having three petals. 
TriphasIa, Loureiro. From triphaaioa, triple; the 
calyx is three -toothed, and there are three petals. 
Linn. 6, Or. 1, Nat. Or. Aurantiacece. This plant 
succeeds well in turfy loam and peat; but it must 
be carefully watered during winter. Cuttings, 
ripened at the base, will root in sand, under a glass, 
in heat. Synonymea: 1. T. aurantiola. 2. Limonia 
trifoliata. 
trifoliata, 1 . . White. . 6, G. Ev. & China . . 1798 
Tripinnatb, thrice pinnate. 
TriplarTs, Linn. From triplex, triple ; the parts of 
fructification are disposed in threes. Linn. 22, Or. 
8, Nat. Or. Polygonacece. For culture and propa- 
gation, see Trervia. 
americana . . . Pa. yeL . S. Ev. T. S. Amer. . 1824 
TRiPLE-NERVEn, throwing out three side nerves a 
little above the base 
Tripsacum, Linn. From triba, to thresh ; in allusion 
to the purpose to which its grain may be applied. 
Linn. 21, Or. 3, Nat. Or. Graminex. These plants 
grow in a^ rich mould, and are increased by 
division. They are fortige grasses of the West 
Indies — T. dactyloldia, monoatdchyOn. 
TriptIlIOn, Ruiz and Pavon. From treia, three, and 
ptilon, a feather; on account of the three divisions 
of the pappus. Linn. 19, Or. 1, Nat. Or. Compoaita. 
A genus of very pretty annuals. The seeds must 
be raised on a hotbed in spring, and planted out in 
the open border about the end of May. 
cordifOUum . . White . . 7, H. A. Chile . . 1824 
spinosum . . .Blue . . 7, H. A. Chile . . 1827 
Triquetrous, having three sides or angles. 
Trisected, cut into three parts. 
Trisetum, Peraoon. From treia, three, and aeta, a 
bristle, on account of the three awns of the flower. 
Linn. 3, Or. 2, Nat. Or. Graminea. According to 
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