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.