Graft Chimeras - +Laburnocytisus 'Adamii', Bizzaria, Graft-Chimaera, +Crataegomespilus (Paperback)

Chapters: +laburnocytisus 'adamii', Bizzaria, Graft-Chimaera, +crataegomespilus. Source: Wikipedia. Pages: 18. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: +Laburnocytisus 'Adamii' (also known as Adam's laburnum or broom laburnum) is a horticultural curiosity; a small tree which is a graft-chimaera between two species, a laburnum, Laburnum anagyroides, and a broom, Chamaecytisus purpureus (syn. Cytisus purpureus), which bears some shoots typical of the one species, some of the other, and some which are a peculiar mixture of both "parents." +Laburnocytisus 'Adamii' is a legume, a member of the pea family Faboideae (or Papilionaceae, formerly Leguminosae). The plus sign (+) indicates its unusual origin. The plant can also be described by the formula Chamaecytisus purpureus + Laburnum anagyroides. (It has also been known as +Laburnocytisus adamii, as if it were one species, but strictly speaking it is not one species but two.) Only one cultivar, 'Adamii', is known to have arisen from this graft. Most of the tree's branches resemble the laburnum in their foliage, which has three leaflets (3-palmate) and 36 cm long, yet also with dense clusters of broom-like shoots, also with three leaflets, but only 1 cm long and a darker green. It flowers in late spring or early summer; some branches have long (2030 cm) racemes of yellow laburnum flowers, while others produce dense clusters of purple broom flowers. Remarkably, most branches will also produce coppery-pink flowers on short (815 cm) racemes, which are midway between the two "parents"; the leaves on these shoots are also intermediate. In older specimens, the proportion of broom and mixed tissues tends to decline, and the laburnum to predominate. The tree grows to a height of 7 m (rarely 8 m) and is hardy to USDA plant hardiness zone 5 in nort...More: http: //booksllc.net/?id=372032