92 THE DICTIONARY 
Triphasia—continued. 
Fig. 105. FRUITING BRANCH OF TRIPHASIA TRIFOLIATA. 
May to July. fr. red-bay colour, ovoid, as large as a hazel 
nut, by abortion one or two-celled, one or two-seeded. J. al- 
ternate, trifoliolate ; aa ovate, obtuse, often crenate, the 
lateral ones smaller. . 5ft. China {and broadly cultivated), 
1798. See Fig. 1 
TRIPHORA. Included under Pogonia (which see). 
 TRIPHYSARIA (from treis, three, and physa, a 
bladder; alluding to the three saccate segments of the 
lower lip of the corolla). Syn. Oncorrhynchus. ORD. 
Scrophularinee. A genus comprising about twenty-three 
species of hardy, annual, North American herbs, now re- 
garded, by Bentham and Hooker, as synonymous with 
Orthocarpus. Flowers yellow or purplish, solitary in the 
axils of the bracts, disposed in terminal spikes; corolla 
with a conspicuously trisaccate lip very much larger than 
the slender, straight galea, Leaves alternate or nearly 
opposite. T. versicolor, the only species introduced, re- 
quires ordinary treatment. 
T, versicolor (various-coloured). fl. cream-coloured, changing 
to rese-purple; lip of the corolla not more than a' quarter the 
length of the densely pubescent tube. June. J. incised at apex ; 
_ segments few, linear-setaceous. Ah. Sin. or more. 1837. Plant 
ay much-branched. The proper name of this annual is 
Orthocarpus erianthus roseus. 
TRIPINNATE. When the leaflets of a bipinnate 
leaf are themselves pinnate. 
-TRIPLADENIA. A synonym of Kreysigis (which 
see). 
TRIPLARIS (from triplex, triple; the parts of the 
frictification are disposed in threes). Syn. Velasquezia. 
ORD. Polygonacee. A genus comprising not more than 
ten distinct species of stove trees, broadly dispersed over 
tropical South America. Flowers dicecious, sessile or 
nearly so within the bracts, disposed in long, softly or 
_ silky-pilose, simple or often branched spikes; perianth six- 
cleft, the male funnel-shaped, the female narrow. Nut 
- prominently and rather acutely trigonal. Leaves alternate, 
— petiolate, often ample, ovate, oblong, or lanceolate. 
_ T. americana has been introduced, but it is a doubtful 
=e. and is SEN lost. to cultivation. 
OF GARDENING, 
TRIPLE-NERVED, TRIPLE-RIBBED. When 
of three ribs the two lateral ones emerge from the 
middle one a little above its base. 
TRIPLET LILY. See Triteleia. 
TRIPLEURA. A synonym of Zeuxine (which see). 
TRIPLO. Thrice. 
TRIPOLIUM. Included under Aster. 
TRIPOLY. See Aster Tripolium. 
TRIPSACUM (from tribo, tripeo, to thresh; alluding 
to the purpose to which the grain may be applied). ORD. 
Graminee. A genus consisting of two species of rather 
tall, greenhouse or hardy Grasses, inhabiting America, 
from Mexico to Texas. Spikelets unisexual, moncecious, 
often two or three, rarely four, many or only one at the 
tips of the spike, the upper part of which is male, the 
lower female; glumes four; peduncles solitary or twin in 
the upper axils. Leaves long, subulate-acuminate. The 
species are valuable fodder-plants in their native places, 
but are too tender for our climate. 
TRIPTEROSPERMUM. A synonym of Craw- 
furdia (which see). 
TRIPTERYGIUM (from treis, three, and pterygion, 
a small wing; referring to the fruit). ORD. Celastrinee. 
A monotypic genus. The species is a highly glabrous, 
hardy, sub-scandent shrub. For culture, see Celastrus. 
T. Wilfordii (Wilford’s). l. white, small; calyx five-lobed ; 
petals five, inse at the base of the disk ; stamens five, on — 
the margin of: the disk, the filaments subulate ; disk broadly 
cup-shaped ; racemes short, axillary and terminal. June. 
fr. tin. long, dry, indehiscent, three-winged, one-seeded, 
l. alternate, petiolate, ovate-oblong, attenuated at apex, serrated, 
thickly veined, exstipulate. h. 2ft. to 3ft. Japan, Formosa, 
and Corea, 1867. (R. G. 612.) 
TRIPTILION (from treis, three, and plilon, a wing; 
alluding to the three divisions of the pappus). ORD. Com- 
positæ. A genus embracing about half-a-dozen species of 
hardy or half-hardy, annual or perennial, Chilian herbs. 
Flower-heads blue or white, rather small, homozamous, 
forming a leafy panicle or corymb at the tips of the 
branches; florets bilabiate, the outer lip entire or three- 
toothed, the inner entire or bifid; involucral bracts few, 
very acute and spinescent, the outer ones shorter; re- 
ceptacle naked or bristly-fimbrilliferous ; achenes minutely 
papillose. Leaves alternate, scattered, ciliated- or spiny- 
toothed or pinnatifid. Two species have been introduced. 
Seeds shonld be sown, on a slight hotbed, in the beginning 
of April. The seedlings may be pricked out, and either 
planted out in a sheltered place, at the end of May, or 
flowered in pots, in a cool, airy greenhouse. A rich, light 
soil is necessary. T. spinosum may also be increased by 
divisions. 
. cordifolinm (cordate-leaved). fi.-heads white, sub-ternately 
clustered at the tips of the branches and branchlets; pappus 
bristles three, ciliated at apex. July. 1. sessile, cordate-am- 
plexicaul, nearly round, the margins toothed and farnished with 
distant spines. Stem erect, branched at apex. h. in. 1824. 
Annual. (B. R. 853.) 
T., spinosum (spiny). fl.-hkeads, outer lips of the florets blue, 
inner white ; involucre glabrous. July. l. pinnately lobed ; lobes 
terminated by a spiny mucrone. Stem corymbose at apex. 
uo) 1827. Perennial. (B. 224; B. R. xxvii. 22; P. M. js 
TRIQUETROUS. Three-edged; thros-oaeiiend. 
TRISECTED. Cut into three parts. 
TRISETUM (from treis, three, and seta, a bristle ; 
alluding to the three awns of the flower). Including 
Rostraria and Trichete. Orp. Graminew. A genus 
embracing nearly fifty species of hardy, perennial or 
rarely annual, tufted Grasses, broadly distributed over 
temperate and mountainous regions. Spikelets two (rarely 
three to six) flowered, often shining; glumes membranous, 
sub-scarious, or the flowering ones hyaline, the two lower 
ones empty; panicles sometimes densely spike-formed, 
