HORTICULTUKAL JOURNAL 205 
8. Z>. florida^ Sieb. and Zucc. Alph. D. C. Calysphyrum floridum, 
Bunge. 
One flowered peduncles very short, calyx urceolate in five lanceolate gla- 
brous divisions. Corolla funnel-sbaped, purple, limb deeply divided in five 
regular parts. Leaves nearly sessile, oval-oblong, narrowed at each end, 
acuminate, serrulate, pubescent. 
This species grows in the high valleys of southern China, where it attains 
an altitude of two and a half to three feet ; its habit resembles that of a 
Cornus. What will make it a valuable ornament to our gardens is, that 
while flowering, which takes place in May, its flowers change color several 
times, and that in a superior manner to D. grandiflora. 
In Japan, the physicians rank this among the poisonous plants, no doubt 
on account of its emetic qualities, which it possesses in common with many 
Lonicere^. 
9. D. paucijiora, Weigela paueiflora, D. C. (not of Bunge.) Leaves 
oval or oboval ; short-petioled, suddenly acuminate, entire at the base and 
at the top, the rest denticulate. Branches, nerves and petioles velvety. 
Flowers axillary and terminal, solitary or ternate, bracts linear, lanceo- 
late, shorter than the calyx tube. Calyx with a limb in five acuminate, den- 
tale divisions. Limb of the corolla three times larger than that of the calyx. 
Northern China. 
There has also, for some years, been cultivated in gardens, under the 
name of Weigela splendens, another species of Diervilla, resembling in 
habit D. canadensis of Willdenow ; it seems to be distinguished from it by 
rather narrower leaves, lanceolate-elliptic, finely denticulate, longer acumi- 
nate, and by the middle nerve, which, in place of being red beneath as in 
D. canadensis, is nearly green. Its origin is unknown. 
Cultivation. — All these handsome shrubs are useful as ornaments to our 
gardens. In fact, originating in cold and temperate countries, and in con- 
sequence very hardy, they present all the conditions which we require in 
our ornamental shrubs. Their propagation is very easy ; it is done either 
by layering, or by means of cuttings placed under a bell glass, or in a 
shady place in the open ground. They suff"er from stagnant moisture ; 
a light, dry and warm soil, more sandy than clayey, seems to suit them 
perfectly. When these plants are too vigorous, they flower very little : but 
this circumstance makes them fit for cultivation in pots or boxes, and per- 
mits us, in making their flowering sure, to have during most of the year 
an ornamental plant for the market. 
