Dissectum Group


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Organism arising via vegetative or asexual reproduction.
Division of a leaf or other object. lobed Bearing lobes.


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This group comprises a number of garden forms with seven, nine or eleven lobes to the leaf, reaching to the leaf-stalk, each lobe being in turn deeply and finely cut and each ultimate division finely toothed. The clones differ somewhat in the fineness of the cutting of the leaf, as well as in its colour. The botanical group-name var. dissectum (Thunb.) Miq., which is founded on a Japanese garden plant described by Thunberg as A. dissectum in 1805, embraces all these clones, whatever their leaf-colouring. The forms with coloured leaves are well enough distinguished, but the naming of the green-leaved clones has become confused. What is generally known as A. p. dissectum or A. p. dissectum viride appears to be the clone distributed by Van Houtte as A. p. palmatifidum, illustrated and described in Flore des Serres, Vol. 21, 1875, t. 2156-7. The form distributed in this country by Messrs Cripps as A. p. palmatifidum was, however, a different clone from this, distinguished by its very finely cut, fern-like foliage. Both the green-leaved clones make mushroom-headed bushes that may reach in time a height of 6 to 8 ft but usually seen smaller than this.


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