An account of the genus Sedum as found in cultivation - download pdf or read online

By R. Lloyd Praeger

Saxifrages, which however, in gardens, tend to be extra safely named. The confusion one of the Sedums seems to be due in general to the truth that a few of them are rampant growers which invade the territory of neighbouring crops and weigh down them. In nurseries this certainly ends up in the intruders being despatched out occasionally less than the names of the species which they've got ousted. The smallest scrap of a lot of those crops in lots of instances unmarried leaves will take root and develop, and therefore items by accident dropped or carried by way of wind or different businesses may possibly identify the species at a distance from the father or mother. A achieve, many of the species of the rupestre staff, particularly S. altissimum and S. Douglasii, have a behavior of shedding in autumn a variety of brief barren shoots, that are rolled approximately via wind and so forth, and take root anywhere they discover a shelter. there's little question that those proof cross some distance to account for the varied names below which universal free-growing Sedums, reminiscent of album, acre, sexangnlare, reflexutn, rupestre, anopetalum, altissimum, and spurium are present in gardens. yet loads of misnomers are as a result of mere carelessness. A nother regrettable characteristic as regards the Sedums is the variety of nomina nuda names which belong to no defined species that are present in connexion with them. Many nurserymen scatalogues are choked with such names. a few are basically perversions, as a result of carelessness, of recognized names such, for example, are crimealense for himalense, and glaciate for gracile; however the majority appear to be planned unlicensed christenings. i've got given in other places a listing of such of those as i've got encountered and suffered from and it truly is to be was hoping that they're going to disappear from our catalogues. a lot of them haven't even the advantage of being utilized regularly to anyone species. A nother reason for misnaming one of the Sedums is the truth that, like mos
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Stems annual, several together from the summit of the branches of the rootstock, erect, i-ij foot Leaves alternate, high, smooth, green, round, unbranched, leafy throughout. triangular to ovate, from a clasping base, coarsely toothed, fleshy, flat, ^-J inch long by about ^ inch broad, green or glaucous, loosely disposed on the stem. Inflorescence terminal, dense, about an inch across, not leafy, branches very Male flower short, riowers 4-merous, on very short pedicels. J—f inch petals linear, blunt, yellowish or long sepals linear, blunt, distant, greenish reddish, i ^ times the sepals, spreading stamens wide-spreading, slightly exceedscales large, ing the petals, filaments streaked red, anthers buff flushed red half as long as the carpels, oblong or quadrate, emarginate, bright red carpels erect, blunt, linear-oblong, much shorter than the stamens, equalUng the sepals, about twice the scales, greenish.

Rhisome cylindrical, elongate. Leaves imbricate, lax, the lower eUiptic subentire, the rest oblong- or linear-spathulate. Inflorescence dense, leafy. Flowers yellow, longer than the thick pedicels. later Stamens This slightly exserted. is Scales oblong, emargitiate. the Japanese form of S. roseum. received as Tachiroi from Avery distinct male plant, Bremen and from Kegel and Kesselring, though quite green, agrees well with Japanese specimens of Tachiroi Kew and the British Museum. These growing plants have the rhizome quite slender, cyUndrical, smooth stems many, 3-4 inches leaves shining, green, small and obovate below, larger and oblanceolate above, where they form an involucre inflorescence small, compact at ; ; ; flowers yellow anthers pale red ; scales oblong, orange small, less than half the stamens (fig.

5. roseum includes plants which vary from very glaucous to bright green, with leaves much toothed or entire and of a wide range of shape, and flowers green, yellow, Nevertheless, it can generally be easily separated red, or purple. from its allies S. heterodontum. which may be only an extreme variety, is distinguished at once by its short, very broad, much-toothed A British) : S. Stephani has 5-parted (not 4-parted) flowers, usually leaves hermaphrodite (instead of dioecious), or if dioecious the male ovaries S.

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An account of the genus Sedum as found in cultivation by R. Lloyd Praeger


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