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Acer
637
V. Leaves simple, five-lobed; basal lobes well developed; green beneath ; margin entire or with a few teeth and without cilia; petiole containing latex.
* Margin entire.
- 33. Acer pictum, Thunberg. Asia Minor to Japan.
- Leaves (Plate 205, Fig. 9) about 4 inches long and 44 inches broad; lobes acuminate, bristle-pointed; basal lobes pointing outwards; glabrous beneath, except for pubescent tufts in the basal axils. Young branchlets green and not glaucous, turning grey in the second year in the type, remaining green in var. colchicum. (See description, p. 660.)
- 34. Acer Lobelii, Tenore. Italy.
- Leaves (Plate 205, Fig. 8) 4 inches long, 44 inches wide; lobes acuminate, ending in long sharp points ; basal lobes directed forwards; glabrous beneath, except for pubescent tufts in the axils of the primary and secondary nerves and at the base; young branchlets glaucous, remaining green in the second year. (See description, p. 659.)
- 35. Acer truncatum, Bunge. Northern China.
- Leaves (Plate 205, Fig. 6) about 24 inches long and 3 inches wide, truncate or widely cordate at the base; lobes! acuminate, bristle-pointed; basal lobes directed outwards ; glabrous beneath, except for a slight trace of pubescence at the base. Young branchlets not glaucous, becoming brown in their first winter.
- A small tree, attaining 25 feet in height. Introduced some years ago by seeds received from Dr. Bretschneider, and thriving at Kew.
- 36. Acer Dieckii,” Pax. Hybrid between A. platanoides and A. pictum, var. colchicum.
- Leaves (Plate 207, Fig. 30) 3 inches long, 4 inches broad ; lobes five, shortly acuminate, not bristle-pointed; brown pubescent beneath at the base and in the axils of the primary and secondary nerves. Young branchlets not glaucous, becoming brown in their first winter.
** Margin toothed.
- 37. Acer platanoides, Linnæus. Europe, Asia Minor, Caucasus.
- Leaves (Plate 206, Fig. 11) 5 inches long, 7 inches wide; lobes acuminate, bristle-pointed ; sinuses wide, rounded and open; margin with a few sinuate pointed teeth ; glabrous beneath, except for pubescence at the base and in the axils of the primary and secondary nerves. Young branchlets not glaucous, becoming brown in their first winter. (See description, p. 656.)
- 38. Acer neglectum, Lange.? Hybrid between A. campestre and A. pictum, var. colchicum.
- Leaves (Plate 205, Fig. 7) 4 inches long, 5 inches wide; lobes acuminate, not bristle-pointed, the upper three with one or two short teeth; glabrous beneath, except for pubescence along the nerves, densest at the base. Young branchlets not glaucous, pubescent, becoming brown in their first winter.
1 The terminal lobe in leaves of young trees has often one or two sharp teeth.
2 Sometimes known in cultivation as Acer platanoides, var. integrilobum, Zabel. There is a small tree at Kew, the bark of which is striped with white lines.
3 There are small trees in the Botanic Gardens at Kew and Edinburgh, the bark of which is striped with white lines.
