盛宇报春苣苔,中国广西石灰岩地区苦苣苔科一新种——兼述微斑报春苣苔花的形态补充描述
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国家自然科学基金项目(32160082);广西自然科学基金项目(2020GXNSFBA297049);广西科学院基本科研业务费项目(CQZ-C-1901);广西科技计划项目(ZY21195050,AD20159091);中国科学院战略生物资源能力建设项目(KFJ-BRP-017-68)资助


Primulina liangshengyui (Gesneriaceae), a New Species from Guangxi, China with Supplementary Description of Floral Morphology of P. minutimaculata
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    摘要:

    报道了中国广西石灰岩地区苦苣苔科报春苣苔属一新种:盛宇报春苣苔(Primulina liangshengyui R. F. Li & L. Ding), 该种形态上与微斑报春苣苔[P. minutimaculata (D.Fang & W.T.Wang) Yin Z.Wang]近似,但可通过叶片且两面被极短的白色糙伏毛;苞片正面无毛,背面被白色短糙浮毛;萼片密被腺毛;花冠紫色,基部逐渐褪为白色;花丝具腺毛来区分。目前,该种仅在广西大化县发现一个居群,成熟个体不足500株,通过IUCN评估标准,该种暂时被评为易危[VU D2]。同时,基于大量的有花标本和野外实地调查,对微斑报春苣苔的花部形态进行了补充描述。

    Abstract:

    Primulina liangshengyui R. F. Li & L. Ding, a new species of Gesneriaceae from the limestone of Guangxi, China is described and illustrated. It resembles P. minutimaculata (D. Fang & W. T. Wang) Yin Z. Wang, but can be easily distinguished by a combination of characters, especially in its leaf blades both sides very short white strigillose; bracts adaxially glabrous, abaxially densely white strigillose; calyx lobes both sides densely glandular puberulent; corolla tube purple and gradually fading to white at the base; filaments glandular puberulent. There is only one population with less 500 mature individuals at the type locality. Thus, this species was provisionally assessed as Vulnerable Endangered [VU D2] by using IUCN criteria. Further, supplemented and described of floral morphology of P. minutimaculata is also appended, based on plenty of specimens with flowers and field works, and especially according to living plant in bloom.

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陈荻雅,李瑞锋,丁莉.盛宇报春苣苔,中国广西石灰岩地区苦苣苔科一新种——兼述微斑报春苣苔花的形态补充描述[J].热带亚热带植物学报,2024,32(5):629~636

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  • 收稿日期:2023-06-14
  • 最后修改日期:2023-12-10
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  • 在线发布日期: 2024-09-29
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