362 BRECK’S NEW BOOK OF FLOWERS. 
THUNBERGIA. 
(Dedicated to Thunberg, an indefatigable botanical traveller.1 
Thunbérgia 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. 
TIARELLA. 
(Named from tiara, a particular kind of head-dress, a mitre, in allusion to 
the form of its capsule.] 
Tiarélla cordifélia.—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. 
