Rhododendron astrophorum (ericaceae, rhododendron sect. schistanthe), a new micro endemic species from central palawan, philippines

Q2 Agricultural and Biological Sciences

Edinburgh Journal of Botany Pub Date : 2023-11-14 DOI:10.24823/ejb.2023.1979

M. Tamayo, Abrila Marcos-Langbao, Rene Alfred Anton Bustamante, Yu Pin Ang, Dale Schubert, W. Mustaqim, Peter Fritsch, Alastair S. Robinson

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引用次数: 0

摘要

通过对巴拉望岛维多利亚-阿内帕汉山脉的植物考察，描述并说明了杜鹃花的一个微型特有新种。该种杜鹃花与威尔基杜鹃花（Rhododendron wilkiei）非常相似，但不同之处在于：叶片呈倒披针形狭椭圆形，正面脉序不明显，沿着茎的长度排列成 4-8 个活动的假轮，大多为顶生；苞片边缘无鳞片；花黄色，花冠筒内部红色，基部密生毛；花药花丝基部有毛。形态学和地理数据将本种归入杜鹃花科。 Schistanthe。该新种以及首次在巴拉望岛记录到的 Rhododendron vidalii 是本研究的一部分，是该岛记录到的该属的第 10 个和第 11 个成员。本报告还提供了巴拉望杜鹃花物种的修订检索表。

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RHODODENDRON ASTROPHORUM (ERICACEAE, RHODODENDRON SECT. SCHISTANTHE), A NEW MICRO-ENDEMIC SPECIES FROM CENTRAL PALAWAN, PHILIPPINES

A new micro-endemic species of Rhododendron is described and illustrated from botanical expeditions to the Victoria-Anepahan Mountain Range on the island of Palawan. It closely resembles Rhododendron wilkiei but differs in having leaves with laminae that are narrowly elliptic-oblanceolate, have adaxially indistinct venation, and are arranged in 4–8 active and mostly terminal pseudowhorls along the length of the stem; bracts without scales on the margin; yellow flowers with a red corolla tube interior that is densely hairy towards the base; and hairy anther filament bases. Morphological and geographical data place the species in Rhododendron sect. Schistanthe. The new species, together with a first record of Rhododendron vidalii on Palawan as part of this research, represent the tenth and eleventh members of this genus recorded from the island. A revised key to the Palawan species of Rhododendron is provided.

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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