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Article from Bean's Trees and Shrubs Hardy in the British Isles
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'Fraxinus ornus' from the website Trees and Shrubs Online (treesandshrubsonline.
A deciduous, very leafy tree, from 50 to 65 ft high, forming a dense rounded head of branches; buds rough, grey; young shoots ordinarily without down. Leaves 5 or 8 in. long, with five to nine leaflets which are ovate or oblong (the terminal one obovate), 2 to 4 in. long, 3⁄4 to 13⁄4 in. wide, more or less tapered at the base, abruptly pointed at the apex, shallowly round-toothed, dull green and glabrous above, the base of the midrib beneath and the stalk downy; main-stalk grooved above, furnished with brownish down where the leaflets are attached. Flowers whitish, very abundantly produced in May in terminal and axillary panicles 3 or 4 in. long, along with the leaves of the new shoots; petals linear, 1⁄4 in. long. Fruits about 1 in. long, narrow-oblong.
Native of S. Europe and Asia Minor; cultivated since early in the 18th century, if not before; now one of the best known of exotic trees. It is a handsome tree with very luxuriant leafage, and decidedly ornamental in flower, although the blossom has a faint, not agreeable odour. Manna sugar is obtained from the stems by incision.
The manna ash is somewhat variable in the wild, mainly in the shape and size of its leaflets, which may be relatively broader or longer acuminate at the apex, than in the tree described above, but it is doubtful if these fluctuations are worthy of taxonomic recognition. A more distinct geographical variant is:
specimens: Hyde Park, London, south of Serpentine, 66 × 81⁄4 ft (1981); Kensington Gardens, London, 85 × 71⁄2 ft (1981); Regent’s Park, London, north of Tennis Courts, 65 × 71⁄4 ft (1981) (the tree in the Rose Garden, felled in 1982, had 160 annual rings on the stump and was 10 ft in girth below the graft in 1978); Chelsea Physic Garden, London, 66 × 71⁄2 ft (1978); Yattendon Court, Berks., 30 × 11 ft (1977); Melbury, Dorset, 49 × 81⁄2 ft (1980); Dodington Park, Glos., 44 × 10 ft at 4 ft (1980); Killerton, Devon, 70 × 61⁄2 ft (1983); Monteviot, Roxb., 62 × 6 ft (1983).
Synonyms
F. rotundifolia Lam