226 THE LADIES' FLOWER-GARDEN 
GENUS II. 
DRACOCEPHALUM, Lin. THE DRAGON'S HEAD. 
Lin. Syst. DIDYNAMIA GYMNOSPERMIA. 
Generic CHAaiCTkiu — Calyx bilabiate, or the upper tooth is large, or the bracteas are ciUately toothed. — (G. Don.) 
1.— DRACOCEPHALUM CANESCENS, Lin. THE WOOLLY-LEAVED DRAGON'S HEAD. 
Synonyme. — Zomia canescenB, Mcench. 
EsGiiiviNGs. — Swt. Brit. Flow. Card. t. 38 ; and our fig. 3, in 
Plate 39. 
Specific Character Stem erectieh, branched, clothed with Udo 
hoary tomeatum. Leaves petiolate, lower ones ovate or oblong, rather 
deeply crenated ; floral ones lanceolate, almost quite entire, all 
canescent from fine tomentum. Whorls distinct, disposed in long 
racemes, usually 6-flowered. Bracteas ovate-cuneated, aristately- 
tootbed. Calyx hoary, having tho upper tooth ovate, and the lower 
one lanceolate. Corolla twice as long as the calyx. — ((?. Don.) 
Description, &c. — A very showy, vigorous-growing plant, about two feet high, and spreading in propor- 
tion. The leaves are white, from the down with which they are clothed ; and the flowers, which are of a very 
dark purplish blue, are produced in great abundance. The species is a native of the Levant, whence it was 
introduced in 1711- The seeds should be sown early in March, and the plants, when they come up, should be 
transplanted so as to stand singly, as they require a great deal of room. 
OTHER SPECIES OF DEACOCEPHALUM. 
D. MOLDAVICUM, Lin.; MOLDAVICA PUNCTATA, Mamch. 
This species, which is generally called Moldavian halm in British gardens, has either blue or white flowers, and 
a very strong smell. It is a native of eastern Siberia, and it was introduced before 1596. 
D. NUTANS, Willd.; and our Jig. 4, in Plate 39. 
This species is a native of Siberia, whence it was introduced in 1823. There are two varieties ; one with 
•white, and the other with flesh-coloured flowers. 
GENUS III. 
PHYSOSTEGIA, Benth. THE PHYSOSTEGIA. 
Lin. Syst. DIDYNAMIA GYMNOSPERMIA. 
Granaic Chakictbr. — Calyx obsoorely veined, inflated after florescence. Corolla much exserted, with an ample throat. — (G. Ion.) 
PHYSOSTEGIA TRUNCATA, Benth. THE BLUNT-CALYXED PHYSOSTEGIA. 
Engravings. — Bot Mag. t. 3494; and out fig. 1, in Plate 39. 
Specific Character. — Calyx truncate, obscurely 3 — 5-lobed. Lobes very broad, denticulated. — (Benlh.) 
Description, &c. — A very showy plant, growing nearly two feet high, and producing several spikes of its 
very elegant and delicately-marked flowers. It is a native of Texas, where it was found by Drummond in 
1834, and seeds sent to the Glasgow Botanic Garden. Though at first supposed to be a perennial, it proves to 
be decidedly an annual, and only requires the same culture as the annual kinds of Dracocephalum. 
