Acer lobelii Ten.

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Bean

Genus

Other species in genus

Glossary

entire
With an unbroken margin.
glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
glaucous
Grey-blue often from superficial layer of wax (bloom).
inflorescence
Flower-bearing part of a plant; arrangement of flowers on the floral axis.
ovate
Egg-shaped; broadest towards the stem.
palmate
Roughly hand-shaped; (of a leaf) divided partially or fully to the base with all the leaflets arising from the tip of the petiole (as in e.g. Aesculus).
truncate
Appearing as if cut off.
variety
(var.) Taxonomic rank (varietas) grouping variants of a species with relatively minor differentiation in a few characters but occurring as recognisable populations. Often loosely used for rare minor variants more usefully ranked as forms.

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Bean

A deciduous tree, ultimately 50 to 60 ft high, whose erect branches give it a narrow columnar form; young shoots glabrous, bluish grey. Leaves palmate, five-lobed, 4 to 7 in. wide, rather less in length (smaller leaves are often three-lobed); heart-shaped or truncate at the base, glabrous and dark green above, paler beneath, with tufts of hair in the axils of the veins; lobes ovate, ending in a long drawn-out point. Flowers in corymbs, yellow. Fruit glabrous, with keys 1 to 114 in. long; wings 13 in. wide, wide-spreading but not quite horizontal.

Native of S. Italy; said to have been introduced in 1683. This maple is closely allied to the Norway maple, and by some authorities is made a variety of it. It has the same inflorescence, fruits, and milky sap in the leaf-stalks. The erect narrow habit, however, at once distinguishes it, the cleft at the base of the leaves is not so deep, and the terminal lobes have not the few large teeth so frequently in the Norway maple; the young bark also is markedly striped. It is perhaps even more closely allied to A. cappadocicum which it resembles in the entire lobes of the leaves; but from which it differs in the leaves being darker green, three- to five-lobed (never seven-lobed as in A. cappadocicum), with the basal pair of lobes directed forward (not spreading horizontally) and in the glaucous, not green young stems. It is a handsome, well-marked, and vigorous tree. There is a tree of exceptional size at Westonbirt in the area known as Clay Island, pl. 1922, 73 × 514 ft (1966). Others of size are: Edinburgh Botanic Garden, 57 × 634 ft (1966); Borde Hill, Sussex, 60 × 812 ft (1967); Birr Castle, Co. Offaly, Eire, pl. 1932, 60 × 334 ft (1966).

From the Supplement (Vol. V)

It is now widely agreed that this maple is botanically nearer to A. cappadocicum than it is to A. platanoides, although geographically nearer to the latter.

specimens: Battersea Park, London, 70 × 812 ft and 68 × 734 ft (1983); Ashridge, Herts., 85 × 812 ft, 85 × 8 ft and 80 × 812 ft (1980); Borde Hill, Sussex, 70 × 912 ft (1977); Heckfield Place, Hants, 80 × 912 ft at 3 ft, 85 × 612 ft at 3 ft, 80 × 414 ft (1982); Westonbirt, Glos., pl. 1922, 77 × 612 ft (1980); Eastnor Castle, Heref., 98 × 12 ft (1984); University Botanic Garden, Cambridge, pl. 1896, 70 × 614 ft (1984); Thorp Perrow, Bedale, Yorks., 62 × 4 ft and 62 × 412 ft (1981); Dyffryn Gardens, near Cardiff, 66 × 5 ft (1984); Edinburgh Botanic Garden, 66 × 734 ft (1981); Abbeyleix, Co. Laois, Eire, 85 × 5 ft (1985); Birr Castle, Co. Offaly, Eire, 69 × 512 ft (1985).

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