TO THE FLOWER GABDEN. 269 



suit closed glass cases. The best are T. rad'icans and T. reni- 

 forme. 



TMCHONEMA. [Iridacese.] Hardy or half-hardy 

 Crocus-like bulbs, \Yorth cultivating. Sandy loam. Offsets. 

 They are best grown in pots in frames, or in very sheltered 

 borders. 



TRIDENTEA. See Stapelia. 



TKIFOLIUM. Trefoil, or Clover. [Leguminosae, 

 § Papilionaceae.] Hardy herbs, many of which are annuals 

 or biennials, and a lai'ge number perennials. They are not of 

 much value as garden plants. T. incarnatuni, with its scarlet 

 flower-heads, is showy ; and T. uniflorum is a very pretty 

 minute perennial species, deserving a place among alpines. 

 The annuals may be sown in jMarch in the places where 

 they are to flower. The perennials need only to be planted 

 in ordinary soil, and divided and reduced when the patches 

 have grown too large for the positions they occupy. Com- 

 mon soil. 



TRILLIUM. [Melanthaceae.] Curious small hardy herba- 

 ceous plants. The stem has three leaves, and the flower 

 three petals. These, therefore, considering the diminutive 

 size of the whole structure (scarcely six inches in height), and 

 the singularity of their form, may be said to be more curious 

 than beautiful, but they are interesting. Though hardy, 

 they require pot culture to be seen to advantage. They are 

 tuberous -rooted perennials, and propagate but slowly by 

 dividing the roots ; but they may be raised from seed, which 

 is inclosed in a berry. This may be sown in pans, and be 

 raised in a frame, and pricked out three or four in a pot to 

 grow% and, lastly, potted singly into sixty-sized pots. All 

 those curious in plants should grow them, though, like many 

 other curious plants, they are greatly neglected. They flower 

 very early in spring, and grow best in peat soil. 



TRIPTILION. [Compositse.] The genus contains a 

 beautiful greenhouse perennial. Soil, sandy peat. Increased 

 by division. The plant is impatient of over-watering, espe- 

 cially in winter. T. sjjtnosum, flowers blue, in July. 



TRITOMA. [LiliacefB.] Beautiful hardy or half-hardy 

 herbaceous plants, requiring a light dry soil and warm or 

 sheltered situation, in which they produce their upright 



