半心海棠(海棠科海棠属)，异型同义植物和裸生植物

Q2 Agricultural and Biological Sciences

Edinburgh Journal of Botany Pub Date : 2022-08-18 DOI:10.24823/ejb.2022.403

R. Rubite, Di Ubaldo, J. Salcedo, Kuo-Fang Chung, L. Evangelista, D. Tandang, M. Hughes

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引用次数: 3

摘要

女用海棠半心海棠。海棠(Begonia sect. Petermannia)是由A.D.E. Elmer于1915年创造的。他在PNH植物标本室注释了他的一个收藏(14366年从吕宋岛的Bulusan山)，但没有正式出版它。1923年，梅里尔(E.D. Merrill)认为这个名字是秋海棠(Begonia binuangensis Merr)的同义词。通过对现存和保存标本及相关文献的深入研究，我们发现半心海棠与B. binuangensis是不同的。半心海棠属于菲律宾的一种攀缘海棠，花序腋生，叶多卵形至披针形，近对称，即B. aequata a . gray, B. binuangensis, B. edanoii Merr。B. gracilipes Merr。，拉古纳叶蝉，大叶蝉。， b.s armentosa l.b.m。& Wassh。和B. wenzelii Merr。然而，长节间，大宿存托叶，锯齿叶缘，长花序，雄蕊花在节理轴上，这些特征的组合很容易将半心海棠与其他物种区分开来，我们在这里有效地描述了这个新种。

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BEGONIA HEMICARDIA (SECT. PETERMANNIA, BEGONIACEAE), A RESURRECTED HETEROTYPIC SYNONYM AND NOMEN NUDUM

The nomen nudum Begonia hemicardia Elmer ex Merr. (Begonia sect. Petermannia) was coined by A.D.E. Elmer in 1915. He annotated one of his collections (14366 from Mount Bulusan, Luzon) in the PNH herbarium with the name but did not formally publish it. E.D. Merrill in 1923 recognised the name as a synonym of Begonia binuangensis Merr. After thorough studies of living and preserved specimens and the relevant literature, we found Begonia hemicardia to be different from B. binuangensis. Begonia hemicardia is allied to a group of climbing Begonia in the Philippines with axillary inflorescences and numerous, subsymmetrical, ovate to lanceolate-ovate leaves, namely B. aequata A.Gray, B. binuangensis, B. edanoii Merr., B. gracilipes Merr., B. lagunensis Elmer, B. megacarpa Merr., B. sarmentosa L.B.Sm. & Wassh. and B. wenzelii Merr. However, a combination of characters such as long internodes, large persistent stipules, serrate leaf margins, and long inflorescence with staminate flowers borne on a jointed rachis readily distinguish Begonia hemicardia from these other species, and we validly describe the new species here.

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来源期刊

Edinburgh Journal of Botany Agricultural and Biological Sciences-Plant Science

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期刊介绍： Edinburgh Journal of Botany is an international journal of plant systematics covering related aspects of biodiversity, conservation science and phytogeography for plants and fungi. The journal is a particularly valued forum for research on South East and South West Asian, Sino-Himalayan and Brazilian biodiversity. The journal also publishes important work on European, Central American and African biodiversity and encourages submissions from throughout the world. Commissioned book reviews are also included. All papers are peer reviewed and an international editorial board provides a body of expertise to reflect the wide range of work published and the geographical spread of the journal’s authors and readers. Published on behalf of the Royal Botanic Garden Edinburgh