T R A 



T R A 



parted perianth, very small, saperior: the co- 

 rolla one- petalled, tunnel - form : tube cylindri- 

 cal, very long, very slender: border patulous, 

 small, tive-parted : segments ovale, concave: 

 tlie stamina have five capillary filaments, length 

 of the corolla : anthers simple : the pistillum is 

 a three-sided-roundish inferior germ: style 

 filiform, twice as long as the corolla: stigma 

 globular : the pericarpium a roundish capsule, 

 obtusely three-lobed, three-celled, opening by 

 three holes at the base : the seeds numerous, 

 very small. 



The species cultivated is T. cceruleuyn. Blue 

 Throatwort. 



It has a perennial (biennial) fleshy, tuberous 

 root, sending out many fibres which spread wide 

 on every side: the leaves about two inches long, 

 and one inch broad in the middle, ending in 

 acute points: the stalks rise a foot and halt high, 

 with leaves on theni shaped like those at the 

 bottom ; sometunes there are two pretty large 

 leaves, and one or two smaller from the same 

 point, or one large and three smaller ; these 

 come out alternate, and the upper part of the 

 stalk, immediately under the umbel, is naked, 

 except two or three narrow leaves, which are 

 close to the foot-stalks of the flowers ; these are 

 disposed in form of an umbel composed of many 

 small ones : the flowers are small, and of an 

 azure blue colour, appearing in June and July. 

 It is a native of Italy and the Levant. 



Culture. — It is raised from seeds, which 

 should be sown in the autumn when well ripened, 

 or in the sprine:, in a bed or border of light 

 mould. And when the plants are two or three 

 inches in height, they should be set out in 

 nursery rows six inches apart, to remain till the 

 following autumn, when they should be planted 

 out where they are to remain. 



They afford ornament in rock-works, and 

 other situations where the earth is poor. 



TRADESCANTIA, a genus furnishing a 

 plant of ihr^ hardy herbaceous peretinial kind. 



It belongs to the class and order Hexandria 

 Monogynia, and ranks in the natural order of 

 Ensatce. 



The characters are : that the calyx is a three- 

 leaved perianth : leaflets ovate, concave, spread- 

 ing, permanent : the corolla has three orbicu- 

 lar^ petals, flat, spreadmg very much, large, 

 equal ; the stamina have six filiform filaments, 

 length of the calyx, erect, villo-^e, with jointed 

 hairs : anthers kidney-form : the pistillum is an 

 ovate germ, obtusely three-cornered : style fili- 

 form, length of the stamens : stigma three- 

 cornered, tubulous : the pericarpium is an ovate 

 capsule, covered by the calyx, three- celled, 

 three-valved : the seeds few, angular. 



The species is T. Firginka, Common Virgi- 

 nian Spiderwort, or Flower of a Day. 



There are other species that may be cultivated. 



It has roots composed of many fleshy fibres : 

 the stalks smooth, rising a foot and half high : 

 the leaves long, smooth, keeled, embracing: 

 the flowers in clusters, composed of three large 

 spreading purple petals ; they appear early in 

 June; and though each flower continues but one 

 day, yet such is the profusion, that there is a suc- 

 cession of them through the greater part of the 

 summer. It is a native of Virginia and Mary- 

 land, flowering in June. 



There are varieties with deep blue flowers, 

 with white flowers, with red flowers, and with 

 purple flowers. 



Culture. — They are readily increased bv part- 

 ing the roots, and planting them out in the 

 autumn, or early in the spring, in a bed or 

 border of common earth. 



And also by seeds sown at the same seasons 

 in similar situations, the plants being pricked 

 out into other beds in the summer, and removed 

 in the autumn to the places where they are to 

 grow. 



They afford ornament in the common borders 

 among other flower plants. 



TRAGOPOGON, a genus containing plants 

 of the hardy, herbaceous, biennial, and peren- 

 nial kinds. 



It belongs to the ciass and order Syngenesia 

 Polygnmia ^qualU, and ranks in the natural 

 order of Componlce Semiflosculosce. 



The characters are : that the calyx is common 

 simple, eight-leaved : leaflets lanceolate, equal, 

 alternately interior, all united at the base: the 

 corolla compound imbricate, uniform : corollets 

 hermaphrodite, many, exterior ones a little 

 longer: the proper one-petalled, ligulate, trun- 

 cate, five-toothed: the stamina have five fila- 

 ments, capillary, very short : anther cylindrical, 

 tubulous: the pistillum is an oblong germ : style 

 filiform, length of the stamens: stigmas two, 

 revolute: there is no pericarpium: calyx con- 

 venz;in!:, acuminate, length of the seeds, ventri- 

 culose7 at length reflexed : the seeds solitary, 

 oblong, attenuated to both ends, angular, 

 rugsed, terminated by a long awl-shaped down- 

 beanng stipe : down feathered, flat, with about 

 thirty-two rays: the receptacle naked, flat, 

 ruo'ged. 



The species are : 1 . T. porrifolius, Purple 

 Goat's-beard, or Salsafy ; 2. T.pratensis, Com- 

 mon Yellow Goat's-beard ; 3. T. crocifoUus, Cro- 

 cus-leaved Goat's-beard ; 4. T. Dalechampii, 

 Great-flowered Goat's-beard. 



The first has a biennial root, long, tapering 

 or round-fusiform, that and the whole plant 



