Encyclopaedia of Gardening 307 



growing a bare foot high, and bearing fluffy pink flowers in June. 

 It likes loam and peat in equal parts. Propagation is by seeds or 

 root cuttings in a warm house or frame in spring. 



Trichomanes, Bristle Fern (trichom-anes, from thrix, a hair, and 

 manos, soft, in allusion to the stems. Ord. Filices). Beautiful 

 ferns, one of the most popular of which is radicans, the Killarney 

 Fern, a wilding in Ireland; Andrewsii, crispum, and dilatatum are 

 varieties of it. They like a humid atmosphere, with shade. 

 Fibrous peat suits them, over abundance of drainage. 



Tricyrtis (tricyr-tis, from treis, three, and kyrtos, convex, in allu- 

 sion to the sepals. Ord. Liliaceae). The most popular species is 

 hirta, a hardy herbaceous perennial, with white, purple-spotted 

 flowers in autumn, height about 2 ft. It thrives in sandy soil on 

 the rockery, and is propagated by division in spring. See the 

 Botanical Magazine, t. 5355. 



Trientalis, Wintergreen (trienta-lis, one-third, in allusion to the 

 low height. Ord. Primulaceae). A small genus of hardy herba- 

 ceous perennials, suitable for a shady part of the rockery, in loamy 

 soil. Americana and europaea both have white flowers in summer, 

 and grow about 9 ins. high. Propagation is by seed or division 

 under glass in spring. 



Trifolium, Trefoil (trifo-lium, from treis, three, and folium, a leaf 

 three-leaved. Ord. Leguminosae) . The Clovers are, of course, 

 more important as farm than as garden plants, but one or two are 

 good enough for the rockery, notably alpinum, pink; and pannoni- 

 cum, yellow and white, both early summer bloomers. Hybridum is 

 the Alsike, and repens the white Clover; the latter is often used as 

 Shamrock, although the yellow suckling, minus, has perhaps better 

 claims. They grow in ordinary soil, and are propagated by seed 

 in spring. 



Trillium, Wood Lily (tnll-ium, from trilix, triple, in allusion to 

 the three petals. Ord. Liliaceae). See Bulbs. 



Triteleia (tritele-ia, from treis, three, and teleios, complete; parts 

 of flower in threes. Ord. Liliaceae). These bulbs are now included 

 with the Brodiaeas by botanists. Uniflora, the most popular 

 species, has lilac flowers in spring; height 3 ins. See Bulbs. 



Triticum, Wheat, Couch (trlt-icum. Ord. Gramineae). This 

 genus includes a beneficent plant in vulgare, the Wheat Plant; and 

 a troublesome one in repens. See Couch Grass. 



Tritoma. See Kniphofia. 



Tritonia (trito-nia, from triton, a weathercock, in allusion to the 

 different directions of the stamens. Ord. Irideae). See Bulbs. 



Trollius, Globe Flower (troll-ius, from trol, round. Ord. Ranun- 

 culaceae). Useful hardy herbaceous plants, with bright yellow or 

 orange flowers in spring. Asiaticus (Botanical Magazine, t. 235) 

 has dark yellow and europaeus pale yellow flowers in late spring 

 or early summer, height about 18 ins. There are several varieties 

 of both; aurantiacus is a deep-coloured form of asiaticus; albidus, 



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