This shrub is not disposed to grow very tall in America, it is most prudent indeed to keep it humble, to the height of four or five feet, and to plant it in a sheltered part of the garden, as its branches are liable to be broken by high winds: Marshall (_Arb. Amer._) describes it as spreading much from its running roots; we have not observed it to do so in any great degree here; it is propagated by layers, by cuttings of the roots, and by grafting; it is of ready growth, disposed to blow even when young, and not nice as to soil, or situation; the flowers afford a good example of the class Diadelphia, they are large and beautiful, but without scent. Was cultivated by Mr. Miller in 1758. _Ait. Kew._ [312] Linum Flavum. Yellow Flax. _Class and Order._ Pentandria Pentagynia. _Generic Character._ _Cal._ 5-phyllus. _Petala_ 5. _Caps._ 5-valvis 10 locularis. _Sem._ solitaria. _Specific Character and Synonyms._ LINUM _flavum_ calycibus subserrato-scabris lanceolatis subsessilibus, panicula ramis dichotomis. _Linn. Sp. Pl. v. 1. ed. 3. p. 399._ _Mant. p. 360._ _Syst. Vegetab. ed. 14._ _Murr. p. 303._ _Jacq. Fl. Austr. v. 3. t. 214._ LINUM sylvestre latifolium luteum. _Bauh. pin. 214._ LINUM sylvestre III. latifolium. _Clus. hist. 1. p. 317._ [Illustration: N^o. 312] There is a considerable similarity betwixt the representation of the present plant and that of the _Linum arboreum_ figured on the 234th plate of this work, they are nevertheless two species widely differing, the _flavum_ being a hardy herbaceous perennial, a native of Germany, the _arboreum_ a greenhouse shrub from the Levant, both possessing considerable beauty, and highly worthy a place in all collections of ornamental plants. The _Linum flavum_ is not mentioned either in the Dictionary of Mr. Miller, or the Hortus Kewensis of Mr. Aiton, and as far as our knowledge extends was a stranger in this country, till we raised it the year before last from seeds sent us by Mr. Daval, of Orbe in Switzerland; Clusius gives us a representation of it in flower, and Prof. Jacquin another much superior; according to the latter, it grows by the sides of hedges and among shrubs in mountainous situations, and rarely exceeds a foot in height. From the little experience we have had of this plant, it appears to be easy of culture, and to succeed best in a soil moderately stiff and moist; the flowers expand most in a morning when the sun shines, and continue in succession during June, July, and part of August; it appears as if it would ripen its seeds in my garden; these vegetate freely: the plant may also be increased by parting its roots in autumn, or by cuttings of the young shoots. [313] Daphne Cneorum. Trailing Daphne. _Class and Order._ Octandria Monogynia. _Generic Character._ _Cal._ 0. _Cor._ 4-fida corallacea marcescens stamina includens, _Bacca_ 1-sperma. _Specific Character and Synonyms._