T R I 



T R O 



leaves ave placed at a distance from the flower, 

 which stands upon a long footstalk, and is erect : 

 the petals are purple, larger, and end with sharper 

 points. It is a native of Virginia, Canada, &c. 

 The third has a purple stalk : the three leaves 

 grow at the top like the first; but they are much 

 longer, and end in acute points : the petals are 

 long, narrow, and stand erect ; are of a dark 

 brownish red : the calyx leaves are streaked with 

 red : the leaves mottled. It grows in Carolina 

 and Virginia. 



Culture. — These plants may be increased by 

 seeds, which should be sown on a shady border 

 as soon as they become ripe in the autumn : 

 when they appear in the spring, the plants 

 should be kept clean from weeds, and in the 

 autumn following be planted out where they are 

 to remain and flower. 



They succeed best in a light soil, where the 

 situation is rather shaded. 



They afford variety in such places. 

 TKIUMFETTA, a genus furnishing plants 

 of the shrubby and herbaceous kinds. 



It belongs to the class and order Dodecandria 

 Monogijnia, and ranks in the natural order of 

 Cohtrriniferce . 



The characters are : that the calyx is a five- 

 leaved perianth : leaflets lanceolate, arilled be- 

 low the tip, deciduous : the corolla has five pe- 

 tals, linear, erect, obtuse, concave, bent back, 

 awned below the tip: the stamina have sixteen 

 filaments, equal, ascending, length of the co- 

 rolla, awl-shaped, erect ; anthers simple: the 

 pistillum is a roundish germ : style length of 

 the stamens : stigma bifid, acute: the pericar- 

 pium is a globular capsule, fenced on every side 

 with hooked prickles, four-celled : the seeds 

 two, convex on one side, angular on the other. 

 The species cultivated are : I. T. Lappula, 

 Prickly-seeded Triumfetta ; 2. T. annua, An- 

 nual Triumfctta. 



The first rises with an upright stem to the 

 height of six or seven feet ; towards the bottom 

 it becomes woody, and at top divides into four 

 or five branches : the leaves placed alternately 

 (he whole length of the stem, about two inches 

 and a half long, and almost two inches broad 

 near (he base, divided almost into three lobes 

 toward the top, and the middle division ending 

 in an acute point ; thev are veined on their un- 

 der side, arc covered with a soft brown dow n, 

 and have several nerves running- from the mid- 

 rib to the sides; their upper side is of a yel- 

 lowish green, and a little hairy; their borders 

 are acutely but unequally serrate, and stand up- 

 on footstalks an inch in length : the branches 

 are terminated by long spikes. pf flowers, which 



come out in clusters from the side of the prin- 

 cipal footstalk, at the distances of about an 

 ineh : the flowers are small, the petals narrow 

 and of a yellow colour ; they arc succeeded by 

 burry capsules, round, and with long prickles 

 placed on every side. It is a native of Jamaica, 

 Martinico, &c. flowering in July and August. 



The second species is an annual plant, rising 

 about two feet and a half high, and sending out 

 several branches on every side : the leaves end- 

 ing in long acute points; some are heart-shaped, 

 others have an angle on each side towards the 

 point; they are from three to four inches long, 

 and almost as much in breadth where broadest ; 

 they stand upon very long footstalks, and are 

 notched on their edges : the flowers come out 

 in long loose spikes at the top of the plant ; are 

 small and yellow. It is a native of India, flow- 

 ering in September. 



Culture. — This is increased by seeds, which 

 must be procured from its native place, and be 

 sown on a hot-bed, or in pots plunged in the 

 bark-bed of the stove : when the plants have 

 one or two inches growth, they should be re- 

 moved into separate pots, replunging them in 

 the bark-bed till well re-rooted. 



They afterwards require to be kept constantly 

 in the stove, or hot-house, and to have the 

 management of other ligneous plants of the 

 stove kind. 



They produce variety in stove collections. 



TKOP^EOLUM, a genus furnishing plants 

 of the herbaceous, annual, and perennial, trail- 

 ing and climbing kinds. 



It belongs to the class and order Octandria 

 Monogynia, and ranks in the natural order of 

 Triltilatce. 



The characters are : that the calyx is a one- 

 leafed perianth, five-cleft, from upright spread- 

 ing, acute, coloured, deciduous ; the two lower 

 segments narrower ; horned at the back with an 

 awl-shapcd, straight, longer nectary: the co- 

 rolla has five petals, roundish, inserted into the 

 divisions of the calyx ; two upper sessile ; the 

 others lower, with oblong, ciliate claws : the 

 stamina have eight awl-shaped filaments, short, 

 declining, unequal : anthers erect, oblongj 

 rising: the pistillum is a roundish germ, three- 

 lobed, striated : style simple, erect, length of the 

 stamens: stigma trifid, acute: the pericarpium 

 berries (or nuts) somewhat solid, three, on one 

 side convex, grooved and striated; on the other 

 angular: the seeds three, gibbous on one side, an- 

 gular on theother, roundish, grooved and striated. 



The species cultivated are: 1. T. mimts s Small 

 Indian Cress, or Nasturtium ; 2. T. maji/s, 

 Great Indian Cress, or Nasturtium. 



