Trichosacme 



{ 405 ) 



Trigonella 



TRICHOSACME. 



Stove climbers (art! Aselepiadeae) with woolly 

 stems and leavers and inconspicuous purple flowers. 

 Thrv may he grown in light fibrous loam and sand, 

 but are "of no horticultural value. Lanata, (>', 

 June, purple, is the principal species. 



TRICHOSANTHES. 



Annual or perennial climbing Gourds (ord. Cu- 

 curbitacerc), the majority of which rejoice in a 

 warm, humid atmosphere. They are distinguished 

 by prettily fringed flowers, and usually long, 

 twisted, snake-like fruits, which, when ripe, are 

 bright red or scarlet in colour. Propagation, by 

 seeds sown in spring. The most suitable soil is 

 loam, enriched with well-rotted manure. 



Principal Species : 

 Aiiguina, 12' to '20', sum., japonica, 10', sum., wh., 



wli.. fruit red (*////. fruit ovoid. 



colubriiia). Common palmata, 8' to 10', sum., 



Snake Gourd. wh., fruit small. 



TRICHOSMA. 



A monotypic genus (ord. Orcliidacesc). The only 

 species, suavis (syn. Eria suavis), is a stove 

 epiphyte with stems 10" to 12" high, bearing two 

 leaves each, and terminal racemes of large, fragrant, 

 creamy white blossoms, the lips of which are 

 marked with crimson. It may be grown in shallow 

 pans of fibrous peat and sphagnum. 



TRICHOSTEMA. 



Hardy perennial herbs (ord. Labiatse), with 

 whorls of small blue or purple flowers. Propagate 

 by division, and plant in any ordinary garden soil. 



Principal Species : 

 arizonicum, 1' to 2', sum., lanata, U', hlf-hdy. sub- 



bl. shr. , bluish pur. 



ovatum, H', Jy., bl. 



TRICORYNE. 



Dwarf, greenhouse perennials (ord. Liliaceas), 

 of tufted habit, with short, wiry stems, the leaves 

 being narrow and Grass-like. Loam is the most 

 suitable soil. The species are rarely seen. Elatior. 

 I'.to '!', June, white, is the principal one. 



TRICUSPIDARIA (si/n. TBICUSPIS). 



IV]ii>ivlens is one of two species in this genus 

 (ord. Tiliacese) in cultivation, and that is rarely 

 seen. It is a greenhouse, evergreen shrub, hardy, 

 however, in many districts in sheltered places, 

 growing 12' high, bearing in April lovely bright 

 red pendulous blossoms. It is often grown under 

 the name of hexapetala. Propagation, by cuttings 

 in sandv peat. Soil, fibrous peat. 



TRICYRTIS. 



Hardy or half-hardy perennial herbs (ord. 

 Liliaceie), with slender stems, hairy leaves, and 

 curiously spotted flowers. Propagation, by division 

 of the rhizomes in spring. Soil, sandy loam. A 

 suitable position is a sheltered nook on the rockery. 



Principal Species : 

 rlava, '!', aut., hdy., yel., wh., spotted pur. (.\v. 



spotted pur. japonica). 



hirta, 1' to 3', aut., hdy., maoropoda,2.^', aut. .hdy., 

 wh., pur. spots. 



TRIDAX. 



Hardy, perennial, herbaceous plants (ord. Com- 

 positoe), rarely cultivated, and of no horticultural 

 value. Propagation, by division in spring. Ordinary 

 garden soil. 



TriflwtiHiia (KIT Eria). 



Trieratus admirabllit (see Abronia umbellate,}. 



Principal Species : 



Mugustifolia, IV, Je.. yel. caudidissima, 1', Je., yel- 

 bicolor rosea, dwarf ami., lowish wh. 



rosy pk. coronopifolia, 1', Je., yel. 



trilobata, 1', Je., yel. 



TRIENTALIS. 



Pretty herbs (ord. Primulacese), of use for a 

 shady place in the rock garden. Propagated by 

 seeds sown under a hand-light in spring, or, in 

 the case of americana, by division at the same 

 time. Rich, loamy soil. 



Principal Species : 



americana, 9", My., wh. europam, 6" to 8", Je., 

 Jy., wh. 



TRIFOLIUM. 



Annual or perennial herbs (ord. Leguminosae), 

 for the most part hardy, only a few species requir- 

 ing protection. A great many are found wild in 

 Britain, and those, together with the majority of 

 the exotic species, are weeds. Though most of 

 them possess no special qualifications as garden 

 plants, they are of great importance to those 

 engaged in agriculture, several species being valu- 

 able fodder plants. To most people the genus 

 will be quite familiar, through the various Clovers 

 and the Shamrock. All grow readily from seeds, 

 and the perennials may be increased by division, 

 though this is rarely practised. 



Principal Species : 



alpestre, 6" to 12", Je., medium, 6" to 10", My. to 



Jy., pur. Owl-headed Sep., rosy pur. 



Clover. pannonicum, 1', Je., wh., 



alpinum, 6", Je., pk. yel. 



canescens, 6", My., Je., pratense, 6" to 12", My., 



crim. Sep., rosy pur. or wh. 



hybridum, 6" to 10", Je., procumbeiis, 1', Je., yel. 



Aug., wh. or ro. Bas- repens, 3" to 18", Je., 



tard Clover or Alsike. Aug., wh. Dutch 



incaruatum, 1', Je., Jy., Clover, Shamrock. 



crim. striatum, 4" to 12", Je., 



Lupinaster, 1' to H', Je. Jy., ro. 



to Aug., pur. 



Other Species : 



armcnium, 1', Jy., red. maririmum, 6", Je., pur. 



arvense, 3" to 12", Jy. to minus, 4", yel. Sham- 



Sep., wh. or pk. rock of some, 



badium, 6", Jy., yel. parviflorum, 6", Je., wh. 



tiliforme, 4" to 8", Je., squarrosum, 6", Je., pur. 



Jy.,yel. 



TRIGLOCHIN. 



Greenhouse or hardy sub-aquatic or marsh 

 plants (ord. Naiadacea;), with racemes of usually 

 small flowers. They are not often cultivated. The 

 two British species, maritimum and palustre, are 

 met with in a wild state. Propagation, by seeds 

 or division. Loamy soil, in water. 



Principal Species : 

 bulbosum, 1', Oct., grh., palustre, 6" to 12", Je. to 



pur. Aug., gru. 



niiiritimum, 12" to 18", 



My. to Sep., gru. 



TRIGONELLA. 



Hardy herbs (ord. Leguminosse), of annual or 

 perennial habit. Propagation, by seeds or division. 

 Ordinary garden soil. 



Principal Species : 

 ceerulea, 1' to 2', Jy., bl. Je. to Aug., wh. Fenu- 



or wh. greek. 



Fii'iuiin-grn-cum, 1' to 2', ruthenica (now Medicago 

 ruthenica). 



Trifurria (see Herbertia). 

 Triglosfiim (iec Arnndntarria}, 



