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and long, five-lobed, heart-shaped or almost truncate at the base, the lobes 

 broadly ovate and with a few large teeth. When young, both surfaces, the 

 margins, and the leaf-stalk are thickly covered with whitish hairs; with age these 

 mostly fall away, but remain on the stalk, ribs, and veins, and are scattered 

 more or less over the lower surface. Flowers yellow, produced in April before 

 the leaves' in short pendulous corymbs from the joints of the previous years 

 wood ; flower-stalk downy, I to ji ins. long. Fruit with numerous whitish, 

 stinging bristles on the nutlets and a few on the wings ; keys I ins. long ; 

 wings oval, * in. wide. 



Native of Japan ; introduced by Maries for Messrs Veitch in 1880. It is 

 quite hardy, and is one of the biggest-leaved of hardy maples ; but Prof. 

 Sargent observes that it has no bright autumn colour, and is one of the least 

 ornamental maples in Japan. The curious specific name is said to refer 

 to the two horn-like, persistent styles attached to the inner side of the nutlets 

 between the wings. 



A. DIECKII, Pax. DIECK'S MAPLE. 



t (A. platanoides var. integrilobum, Zabel.*) 



A deciduous tree, probably 60 ft. high ultimately. Leaves three-, four-, 

 or five-lobed, 3 to 7 ins. (sometimes as much as 10 ins.) wide ; two-thirds as 

 long, dark glossy green above, with tufts of brown hairs in the axils of 

 the veins beneath ; lobes broadly triangular, blunt-pointed, margins nearly 

 always entire. Flowers yellow, in corymbs. Fruit smooth ; the keys i^ to if 

 ins. long, spreading at a broad angle. 



A hybrid, believed to have originated from A. platanoides and A. lastum ; 

 introduced from the Zoeschen nursery to Kew in 1887. It was first sent out 

 under the synonym given above. The leaf-stalk exudes a milky sap when 

 broken. 



A. DISTYLUM, Siebold. 



(Gardeners' Chronicle, 1881, i., fig. 93.) 



A deciduous tree, probably 50 ft. high eventually. Leaves ovate, deeply 

 heart-shaped at the base, 4 to 6^ ins. long, about three-fourths as wide, slender- 

 pointed, quite smooth except when young, the margin set with small teeth ; 

 leaf-stalk quite short, I to i^ ins. long. Flowers borne in a branching raceme ; 

 yellowish. Fruits smooth, in erect racemes or corymbs ; keys I ins. long ; 

 wings \ in. wide, ultimately spreading at an angle of about 100. 



Native of Japan ; introduced by Messrs Veitch in 1879. O ne of tne 

 original trees at Coombe Wood, now nearly 30 ft. high, produces fruit annually. 

 The leaves in shape are similar to those of a lime. It has some resemblance 

 to A. Davidii, but the leaves are broader in proportion to their length, more 

 deeply notched at the base, and the erect racemes of fruit distinguish it. 



A. DURETTI, Pax. 



A deciduous tree, 40 ft., perhaps more, high, with smooth bran.chlets. 

 Leaves 2 to 4 ins. across, 2 to 3 ins. long ; bright green, and smooth above 

 except for a tuft of hairs at the base, hairy along the veins beneath ; there are 

 always three large triangular lobes, and these are usually supplemented by two 

 small ones at the base ; the margins irregularly toothed. Flowers greenish 

 yellow, produced in May on hairy-stalked corymbs," i^r to 3 ins. long. 



A maple of unknown origin, but undoubtedly closely allied to A. Pseudo- 

 platanus. It is believed to be a hybrid between that species and one of the 

 campestre group, probably A. monspessulanum, as indicated by the frequently 

 three-lobed leaves and the intermediate inflorescence. 



