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Saturday, October 7th, 2023
| Time | Event | ||||||||
| 2:08a | [Botany • 2021] Rhododendron kuomeianum (Ericaceae, sect. Rhododendron) • A New Species from northeastern Yunnan (China), based on Morphological and Genomic Data
Abstract Rhododendron kuomeianum Y.H. Chang, J. Nielsen & Y.P. Ma, a new species of Rhododendron (Ericaceae) within subsect. Maddenia in sect. Rhododendron from Yiliang County, NE Yunnan, China, is described and illustrated. The new species is similar to R. valentinianum, but it can be easily distinguished by its sparse scales on the abaxial surface of the leaf blade, fewer flowers per inflorescence and white corolla with pale red margins. There are also differences in the widths of calyx lobes, leaf blade shape and indumentum characteristics of the petiole between the new species and Rhododendron linearilobum. We confirmed that R. kuomeianum is a new species closely related to R. valentinianum and R. changii with phylogenomic studies of 10 species within this subsection based on restriction site-associated DNA sequencing (RAD-seq) data. These phylogenomic analyses also clarified additional taxonomic problems in this subsection previously raised by morphological analysis. Our findings make a strong case for using next-generation sequencing to explore phylogenetic relationships and identify new species, especially in plants groups with complicated taxonomic problems. Keywords: Rhododendron, New species, RAD-seq, Phylogenetic position
Rhododendron kuomeianum Y.H. Chang, J. Nielsen & Y.P. Ma sp. nov. 国楣杜鹃【guó méi dù juān】 Type. CHINA. Yunnan: Yiliang County Xiaocaoba Nature Reserve, .... Diagnosis. Rhododendron kuomeianum resembles R. valentinianum in having a broadly elliptic to obovate leaf blade, dense rusty-yellow setae on the petiole, and a funnelform-campanulate corolla. It differs from R. valentinianum in having a white corolla with pale red margins (versus light to bright yellow), fewer flowers (1–2) per inflorescence (versus 2–4), and sparser distribution of scales on the abaxial surface of the leaf blade (1–2 × scales diameter apart) (versus 0.5 × scales diameter apart) (Table 1). Etymology. The new species Rhododendron kuomeianum was named after Professor Kuo Mei Feng, a botanist and horticulturalist from the Kunming Institute of Botany, Chinese Academy of Sciences, to honor his great contribution to research on the genus Rhododendron in China. In pinyin, the Chinese name is “Guó méi dù juān”.  Yu-Hang Chang, Gang Yao, Jens Neilsen, De-Tuan Liu, Lu Zhang and Yong-Peng Ma. 2021. Rhododendron kuomeianum (Ericaceae), A New Species from northeastern Yunnan (China), based on Morphological and Genomic Data. Plant Diversity. 43(4); 292-298. DOI: 10.1016/j.pld.2021.04.003 | ||||||||
| 8:24a | [Entomology • 2012] Sinoneurorthus yunnanicus • A spectacular New Species and Genus of Nevrorthidae (Insecta: Neuroptera) from China, with Phylogenetic and Biogeographical Implications
Abstract A new species and genus of Nevrorthidae, Sinoneurorthus yunnanicus n. gen. et n. sp., from Yunnan Province, China, is described. The generic status of the new genus is discussed based on the genital morphology. The phylogenetic and biogeographical relevance of the new genus and its implications on the whole family are discussed. Keywords: Nevrorthidae, taxonomy, China, phylogeny, biogeography 
Xingyue Liu, Horst Aspöck and Ulrike Aspöck. 2012. Sinoneurorthus yunnanicus n. gen. et n. sp. – A spectacular New Species and Genus of Nevrorthidae (Insecta: Neuroptera) from China, with Phylogenetic and Biogeographical Implications. Aquatic Insects: International Journal of Freshwater Entomology. 34(2); 131-141. DOI: 10.1080/01650424.2012.718086 Ulrike Aspöck, Horst Aspöck and Xingyue Liu. 2017. The Nevrorthidae, mistaken at all times: phylogeny and review of present knowledge (Holometabola, Neuropterida, Neuroptera). Deutsche Entomologische Zeitschrift. 64(2): 77-110. DOI: 10.3897/dez.64.13028 | ||||||||
| 9:07a | [Botany • 2023] Panax siamensis (Araliaceae) • A New Species of Ginseng from northern Thailand
Abstract We herein describe a new species, Panax siamensis J. Wen, from the tropical monsoon forests in northern Thailand. Panax siamensis is characterized by a combination of characters including horizontally elongated rhizomes with thick internodes, 3–5 whorled leaves each with 7–9 sessile and lanceolate leaflets, lanceolate bracteoles not persisting at the fruiting stage, 2-locular ovaries, and red fruits with a black top. The new species is most closely related to Panax zingiberensis C.Y. Wu & Feng from southeastern Yunnan province of China, sharing the character of sessile leaflets, but differing in that P. siamensis has well developed, elongated rhizomes (vs. compact, ginger-like rhizomes and rootstock in P. zingiberensis), and 7–9 leaflets (vs. (3–) 5–7 leaflets in P. zingiberensis). We also compare Panax siamensis to other related Asian Panax species, including P. assamicus Banerjee, P. bipinnatifidus Seem., P. pseudoginseng Wallich, and P. vietnamensis Ha & Grushv. The new taxon is preliminarily assessed as Vulnerable (VU D2), according to the IUCN Red List criteria. A taxonomic key is provided to facilitate the identification of P. siamensis and its close allies. Key words: Araliaceae, conservation, ginseng genus, Panax, Panax siamensis J. Wen
Panax siamensis J. Wen, sp. nov. Diagnosis: Rhizomes horizontally elongated with thick internodes. Leaves 3—5 at the tip of stem, exstipulate, with 7–9 leaflets; leaflets sessile or nearly so, tapering toward the base, lanceolate, long acuminate at apex, long acute at base, serrulate to doubly so at margin, membranaceous, bristly along veins and veinlets on both surfaces. Ovary 2-locular. Fruits subglobose, bright red with a black top, persistent stigmas recurved, 1–2 seeded, 5–6 mm long, 7–8 mm wide, 3–3.5 mm thick. Seeds ovate, 5–5.5 mm long, 3–4 mm wide, 2.5–3.5 mm thick, surface rough. Ecology: In shaded areas of monsoon evergreen hardwood forests, or in mixed evergreen hardwood and pine forests, granite bedrock. Jun Wen, Gary Krupnick and Hans-Joachim Esser. 2023. Panax siamensis J. Wen, A New Species of the Ginseng Genus (Panax, Araliaceae) from northern Thailand. PhytoKeys. 234: 51-59. DOI: 10.3897/phytokeys.234.106289 | ||||||||
| 2:51p | [Botany • 2020] Hedyotis sithiravaraiensis (Rubiaceae) • A New Species from Southern India
Abstract During the ethnobotanical survey on the Pakkamalai, Gingee Hills, one of the Eastern Ghats hill ranges, the authors found a new species, which has been used as a medicinal plant in the local region in India. After a critical examination of the specimen and literature, it is described as new to science, Hedyotis sithiravaraiensis sp. nov. Description and illustration of the new species are given. Keywords: Eastern Ghats, Ethnobotany, Gingee Hills, Medicinal plant, Senthumbai
Hedyotis sithiravaraiensis S. Muruganandam, Devanath., S. Ravikumar & D. Naras. sp. nov. Etymology. This species is named after its type locality Sithiravarai (Sethavarai), one of the archeologically important sites as it has about 3500 years old rock paintings of natural cavern. The etymological meaning of the term is Sithiram (painting) and Varai (hills). Local name. There are several local names in India, viz. Senthumbai, Sakkaraithumbai, and Karunthumbai (Tamil).  Subbiah Muruganandam, Krishnamoorthy Devanathan, Sundaramurthy Ravikumar and Duvuru Narasimhan. 2020. Hedyotis sithiravaraiensis (Rubiaceae): A New Species from Southern India. Journal of Asia-Pacific Biodiversity. 13(4); 749-754. DOI: 10.1016/j.japb.2020.08.003 |
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