These several varieties of Primrose are admirably adapted to the decoration of the shrubbery, plantations, or even the north side of rock-work; they delight to grow in a stiff loam, a moist and somewhat shady situation, so planted they thrive admirably, the double succeeding almost as well as the single; every second or third year their roots should be divided, which may be done either in spring or autumn, they may be cultivated also in pots for the convenience of removing them when in blossom. [Illustration: _No 229_] [Illustration: _No 230_] [230] PLUMBAGO ROSEA. ROSE-COLOURED LEADWORT. _Class and Order._ PENTANDRIA MONOGYNIA. _Generic Character._ _Corolla_ infundibuliformis: _Stamina_ squamis basin corollae claudentibus inserta. _Stigma_ 5-fidum. _Sem._ 1. oblongum tunicatum. _Specific Character and Synonyms._ PLUMBAGO _rosea_ foliis petiolatis ovatis glabris, subdenticulatis caule geniculis gibbosis. _Linn. Syst. Vegetab. ed. 14._ _Murr. p. 199. Sp. Pl. ed. 3. p. 215._ _Ait. Kew. v. 1. p. 205._ PLUMBAGO zeylanica, folio splendento ocymastri, flore rubro. _Burm. Zeyl. 195._ RADIX vesicatoria. _Rumph. Amboin. 5. p. 453. t. 168._ The _Plumbago rosea_, one of the most ornamental plants which we keep in our stoves, is a native of India, from whence it was introduced to this country by the late Dr. FOTHERGILL, in the year 1777, posterior to the publication of the last edition of Mr. MILLER's Dictionary. It is a shrubby plant, which frequently grows to the height of four or five feet, and is perpetually putting forth flowering spikes; these continue a long while in blossom, and hence, with proper management, it may be had to flower during most of the year, a very desirable circumstance in a plant of such singular beauty. The usual mode of increasing it is by cuttings, which strike freely. Its parts of fructification, whether we regard their colour or structure, are highly deserving of notice. [Illustration: _No 231_] [231] FUMARIA SOLIDA. SOLID-ROOTED FUMITORY. _Class and Order._ DIADELPHIA PENTANDRIA. _Generic Character._ _Cal._ diphyllus. _Cor._ ringens. _Filam._ 2 membranacea, singula _Antheris_ 3. _Specific Character and Synonyms._ FUMARIA _solida_, caule simplici, bracteis brevioribus multifidis, radice solida. _Mill. Dict. ed. 6. 4to._ FUMARIA _bulbosa_, caule simplici, bracteis longitudine florum. _Linn. Syst. Vegetab. ed. 14._ _Murr. p. 636. Sp. Pl. ed. 3. p. 983._ _Ait. Kew. v. 3. p. 1._ FUMARIA _bulbosa_ radice non cava major. _Bauh. Pin. p. 144._ Small hollow roote. _Park Parad. p. 275. 279. f. 2._