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| 越南莲座状复苏卷柏一新种——越南卷柏(卷柏科)(英文) |
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张梦华1,2, 杨 杰1,2, LUU Hong Truong3, TRAN Gioi3, 张宪春1*
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1. 中国科学院植物研究所, 系统与进化植物学国家重点实验室, 中国 北京 100093;2. 中国科学院大学 生命科学学院,
中国 北京 100049;3. 越南科学技术院, 南方生态研究所, 越南 胡志明 754000
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| 摘要: |
| 该文描述了在越南发现的卷柏科一新种——越南卷柏(Selaginella pseudotamariscina X. C. Zhang & C. W. Chen)。经过分子系统发育分析并与近缘种形态比较,认为该新种是卷柏属(Selaginella)同穗亚属(subg. Stachygynandrum)的一个物种,与S. digitata-S. imbricata分支为姐妹群关系。该新种与卷柏(S. tamariscina)和垫状卷柏(S. pulvinata)的形态近似,其植株均为莲座状,但不同之处在于中叶对称,似披针形,上表面具1沟槽; 孢子叶穗略压扁; 孢子叶和营养叶性状和排列近似,孢子叶非同形,略异形,正置,腹面孢子叶大于背面孢子叶; 背面孢子叶败育,孢子囊仅见于腹面孢子叶基部。 |
| 关键词: 叶绿体基因rbcL, 复苏植物, 卷柏属同穗亚属, 新种, 分类学 |
| DOI：10.11931/guihaia.gxzw202104055 |
| 分类号:Q949 |
| 文章编号:1000-3142(2022)10-1632-09 |
| Fund project:北京市自然科学基金(5202019)[Supported by Beijing Natural Science Foundation(5202019)]。 |
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| Selaginella pseudotamariscina (Selaginellaceae), an overlooked rosette-forming resurrection spikemoss from Vietnam |
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ZHANG Menghua1,2, YANG Jie1,2, LUU Hong Truong3, TRAN Gioi3, ZHANG Xianchun1*
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1. State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;2. College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;3. Southern Institute of Ecology,
Vietnam Academy of Science and Technology, Ho Chi Minh City 754000, Vietnam
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| Abstract: |
| A new species, Selaginella pseudotamariscina X. C. Zhang & C. W. Chen(Selaginellaceae), is described from Vietnam. The placement of this species within Selaginella subg. Stachygynandrum is assessed based on molecular phylogenetic analyses and morphological comparisons with related species. Molecular phylogenetic analyses suggest that S. pseudotamariscina is sister to S. digitata-S. imbricata clade. Morphologically, the new species is similar to S. tamariscina and S. pulvinata by sharing the rosette-forming habit, but distinguished by its dorsal leaves symmetrical, lanceate, sulcate on upper surface; strobili slightly dorsiventrally complanate and non-resupinate, sporophylls resembling vegetative leaves in form and arrangement, non-resupinate, the ventral sporophylls larger than the dorsal ones, dorsal sporophylls sterile, sporangia only borne on the base of ventral sporophylls. |
| Key words: chloroplast gene rbcL, resurrection plants, Selaginella subg. Stachygynandrum, new species, taxonomy |
