| 摘要: |
| 为明确中国蜘蛛抱蛋属(Aspidistra)植物的物种组成及地理分布状况,对中越边境地区云南省麻栗坡县采集的蜘蛛抱蛋属植物材料进行分类学研究。该文通过野外调查与迁地引种栽培观察,结合形态特征比较、标本查阅和文献核对,并利用扫描电镜观察花粉形态,将该植物鉴定为星花蜘蛛抱蛋(Aspidistra stellata Aver. & Tillich),为中国一新记录种,该种以前被报道仅产于越南宣光省,其花被裂片线状披针形,显著长于花被筒部,雌蕊盾状,柱头直径为8～10 mm。其形态与A. melanaster Aver., K. S. Nguyen & Tillich相似,在叶和花的大小上存在差异,但两者的产地和花色有重叠,存在密切亲缘关系,需进一步深入开展研究以厘清种界。该文修正了原始文献中关于柱头的描述偏差,提供了相关的形态学描述、地理分布、孢粉信息和彩色解剖图版,并编制了蜘蛛抱蛋属花被裂片长于花被筒部(柱头内藏)类群的分种检索表以利辨识。综上,该新记录种的发现不仅扩充了中国蜘蛛抱蛋属的物种组成,也进一步补充了中国天门冬科植物多样性的基础资料,进而为解析中越边境地区植物区系的形成与演化历程提供了新的实证依据。 |
| 关键词: 星花蜘蛛抱蛋, 天门冬科, 新记录, 云南, 中越边境地区 |
| DOI：10.11931/guihaia.gxzw202512014 |
| 分类号:Q949 |
| 文章编号:1000-3142(2026)09-1545-08 |
| Fund project:中国科学院战略生物资源计划项目(KFJ-BRP-007-012); 国家自然科学基金项目(31760061)。 |
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| A newly recorded species of Asparagaceae from China —Aspidistra stellata and its taxonomic study |
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WAN Xinyu1,2, YOU Yue1,2, WANG Bingmou3, LIN Chunrui2*
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1. College of Tourism &2.Landscape Architecture, Guilin University of Technology, Guilin 541006, Guangxi, China;3.2. Guangxi
Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, Guangxi,
China;4.3. Guangzhou Panyu Central Hospital, Guangzhou 511400, China
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| Abstract: |
| To clarify the species composition and geographical distribution of the genus Aspidistra in China, a taxonomic study was conducted on specimens collected from Malipo County, Yunnan Province, along the China-Vietnam border region. Based on field investigations and ex situ cultivation observations, combined with comparative analyses of morphological characteristics, examination of herbarium specimens, and verification of relevant literature, as well as palynological observations using scanning electron microscopy(SEM), the plant was identified as Aspidistra stellata Aver. & Tillich. This species is reported here as a new record for China. Previously, it was only known from Tuyên Quang Province, Vietnam. The species is characterized by linear-lanceolate perianth lobes that are conspicuously longer than the perianth tube, a peltate pistil, and a stigma with a diameter of 8 - 10 mm. Morphologically, it resembles A. melanaster Aver., K. S. Nguyen & Tillich, differing mainly in leaf and flower size. However, the two species share overlapping distributions and flower coloration, suggesting a close phylogenetic relationship that warrants further investigation to clarify species boundaries. In addition, the present study corrects inaccuracies in the original description regarding the stigma. Detailed information on morphological description, geographical distribution, and palynology information is provided, along with color photographic plates. A diagnostic key to species of Aspidistra with perianth lobes longer than the perianth tube(with included stigma)is also constructed to facilitate identification. In conclusion, the discovery of this newly recorded species not only enriches the known species composition of Aspidistra in China but also supplements baseline data on the diversity of the family Asparagaceae, providing new empirical evidence for understanding the formation and evolutionary history of the flora in the China-Vietnam border region. |
| Key words: Aspidistra stellata, Asparagaceae, new record, Yunnan, China-Vietnam border region |
