''Acer morrisonense'' is an Asian species of

maple ''Acer'' () is a genus of trees and shrubs commonly known as maples. The genus is placed in the family Sapindaceae.Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008 nd more or less continuously updated since http ...

found only in the mixed forests of eastern and southern

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

, at elevations of 1800 – 2200 m. The species is sometimes confused with another Taiwanese tree, ''

Acer caudatifolium ''Acer caudatifolium'' is an Asian species of maple, found only in Taiwan. The species is sometimes confused with another Taiwanese tree, ''Acer morrisonense''. This species has been known to reach 20 metres tall. Leaves are non-compound, the bl ...

''.Zhengyi, W., Raven, P., & Deyuan, H., (Eds.) (2008) ''

Flora of China The flora of China consists of a diverse range of plant species including over 39,000 vascular plants, 27,000 species of fungi and 3000 species of bryophytes.Wu, Z. Y., P. H. Raven & D. Y. Hong, eds. 2006. Flora of China. Vol. 22 (Poaceae). Sc ...

'', Vol. 11, p.539, 542

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Description

''Acer morrisonense'' is a tree growing to 20 m tall, with a smooth, yellowish-grey bark. The branchlets are glabrous, bearing deciduous leaves with petiole (botany), petioles 5–7 cm non-compound, the leaf blade suborbicular-ovate, 8-10 × 6-8 cm, papery, adaxially glabrous, 5-veined at the base which is nearly truncate or subcordate, the margin doubly serrate with coarse acute teeth, shallowly 5-lobed, to 1/5 width of blade. The distinctive middle lobe is shortly ovate, the apex acuminate. The flowers are

racemose A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...

, 15 in number, and appear during March and April in Taiwan. The fruits are small, yellowish-brown, and ripen in October. Image:Acer morris. leaf.jpg, ''Acer morrisonense'' leaf. Ventnor Botanic Garden

References

External links

* Plants described in 1911 morrisonense Endemic flora of Taiwan Trees of Taiwan Taxa named by Bunzō Hayata {{Sapindales-stub