Download e-book for iPad: An account of the genus Sedum as found in cultivation by R. Lloyd Praeger

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 mostly 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 results 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 vegetation in lots of circumstances unmarried leaves will take root and develop, and hence items by accident dropped or carried by means of wind or different companies might determine the species at a distance from the guardian. A achieve, the various species of the rupestre crew, particularly S. altissimum and S. Douglasii, have a behavior of shedding in autumn quite a few brief barren shoots, that are rolled approximately by means of wind etc, and take root at any place they discover a shelter. there's little question that those evidence move some distance to account for the varied names below which universal free-growing Sedums, corresponding to album, acre, sexangnlare, reflexutn, rupestre, anopetalum, altissimum, and spurium are present in gardens. yet numerous 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 jam-packed with such names. a few are in actual fact 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 different places an inventory of such of those as i've got encountered and suffered from and it really is to be was hoping that they're going to disappear from our catalogues. lots of them haven't even the advantage of being utilized always to anybody species. A nother reason for misnaming one of the Sedums is the truth that, like mos
(Typographical blunders above are as a result of OCR software program and do not ensue within the book.)

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Some members Series I. of each and short or slender root- group are in cultivation. Rhodiolae sensu stricto. Flowers usually unisexual and 4-parted, caudex usually elongate or greatly thickened. Carpels usually short and crowned with short styles reflexed in fruit. • PRAi£GER, " On the Affinities of Sedum Praegertanum W. " Trans. , 27, 191 7. W. Smith, Bot. Soc. CULTIVATION. — Caudex-leaves scale-like, short, membranous, flower-stems not persistent. seldom green even when young. Old Group I (P.

Acute. Here belongs the native British and Continental Roseroot, which common garden form. European herbarium specimens show but little variation. The extreme glaucescence is characteristic. is also the ACCOUNT OF GENUS SEDUM AS FOUND IN CULTIVATION. Pig. 5. — S. roseum varieties. 31 ; JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 32 but a very short leafy green form received as Stephani from Bremen appears to belong here ; also glaucous narrow-leaved forms from Brussels, &c. /?. elongatum Ledebour, " Flor.

Crassipes with ; S. Cretini Hamet. Although the plant is variable, some of the forms tending towards the variety described below, the latter appears to merit varietal rank. The species takes its name from its thick rhizome. Var. cholaense Praeger in Journ. , 57, 50, 1919 (fig. 22). More robust than the type, plant of a more greyish green, inflorescence denser and more involucrate, the bracts being very long. Leaves i-ij inch Buds f inch long, ^o"S' i~Ta iJ^ch broad, largest below the inflorescence.

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


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