THUNBERGIA. 



[Dedicated to Thunberg, an indefatigable botanical traveller.] 



Thlinblrgia alata. Thunbergia. A handsome climb- 

 ing green-house perennial, but succeeds well as an annu- 

 al, from seed sown in the open ground the last of May ; 

 grows five or six feet high, with numerous buff-colored 

 flowers, with dark throat ; from July to October. The 

 White-flowered, var. alba^ is a very showy variety of 

 T. alata, differing in no respect except color. The Orange- 

 flowered, var. aurantiaca, is another variety. The va- 

 rieties are easily multiplied by cuttings, and are often 

 treated as stove-plants, but succeed better in the conser- 

 vatory or green-house ; and, if planted in a warm, sunny 

 border, it will grow and blossom freely during the sum- 

 mer months. A soil composed of peat and loam is that 

 which suits them best. Plants forwarded in pots, in a 

 frame, succeed better than those sown in the open ground. 

 There are other improved varieties, all fine. The plants 

 throw out many lateral branches, and will require training 

 to a trellis or frame-work. 



TIAKELLA. 



[Named from tiara, a particular kind of head-dress, a mitre, in allusion to 

 the form of its capsule.] 



Tiart'lla cordifdlia. Heart-leaved Tiarella. This fine 

 dwarf plant is found in the woods in most of the North- 

 ern States. The roots are creeping, and send out run- 

 ners. Leaves on long hairy petioles, heart-shaped, lobed 

 and toothed, hairy on both sides. Flowers entirely white, 

 on long racemes six or eight inches high. In blossom in 

 June. A hardy perennial, related to Saxifrage, and 

 easily cultivated in the flower-border. 



