It is a very proper plant for a wall or piece of rock-work; care must be taken, however, not to sow too much of the seed in one pot, as it spreads wide, but it may easily be reduced at any period of its growth, as it does not creep at the root.
The specific description in the _Hortus Kewensis_ above referred to, admirably characterizes the plant, but surely at the expence of its generic character.
CAMPANULA SPECULUM. VENUS'S LOOKING-GLASS.
_Corolla_ campanulata, fundo clauso valvis staminiferis. _Stigma_ trifidum. _Capsula_ infera, poris lateralibus dehiscens.
CAMPANULA Speculum caule ramosissimo, diffuso; foliis oblongis subcrenatis, floribus solitariis, capsulis prismaticis. _Linn. Syst. Vegetab. p. 209._
ONOBRYCHIS arvensis f. Campanula arvensis erecta. _Bauh. Pin. 215._
Grows wild among the corn in the South of Europe, is an annual, and, like the _Sweet Alyssum_, generally cultivated in our gardens, and most deservedly so indeed, for when a large assemblage of its blossoms are expanded by the rays of the sun, their brilliancy is such as almost to dazzle the eyes of the beholder.
Those annuals which bear our winter's frosts without injury, are advantageously sown in the autumn; for by that means they flower more early, and their seeds ripen with more certainty; the present plant is one of those: it usually sows itself, and is therefore raised without any trouble.
It begins to flower in May and June, and continues to enliven the garden till August or September.
PELARGONIUM ACETOSUM. SORREL CRANE'S-BILL.
_Calyx_ 5-partitus: lacinia suprema definente in tubulum capillarem, nectariferum, secus pedunculum decurrentem. _Cor._ 5-petala, irregularis. _Filam._ 10. in æqualia: quorum 3 (raro 5) castrata. _Fructus_, 5-coccus, rostratus: rostra spiralia, introrsum barbata. _L'Herit. Geran._
PELARGONIUM _acetosum_ umbellis paucifloris, foliis obovatis crenatis glabris carnosis, petalis linearibus. _L'Herit. Monogr de Geran. n. 97._
GERANIUM _acetosum_ calycibus monophyllis, foliis glabris obovatis carnosis crenatis, caule fruticoso laxo. _Linn. Syst. Vegetab. ed. 14._ _Murr. p. 613. Sp. Pl. p. 947._
GERANIUM Africanum frutescens, folio crasso et glauco acetosæ sapore. _Comm. præl. 51. t. 1._