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Monday, December 5th, 2022
| Time | Event | ||||||||
| 3:23a | [Entomology • 2022] Anax aurantiacus • A New Dragonfly (Odonata: Anisoptera: Aeshnidae) from mainland Southeast Asia
Abstract A new species of the genus Anax, A. aurantiacus, is described and illustrated based on adults of both sexes and exuviae from Thailand. This new species was previously considered by several authors to be a form of A. immaculifrons Rambur, 1842, but was never officially described. Anax aurantiacus sp. nov. is differentiated from A. immaculifrons based on coloration and morphological differences in the adults and larvae. Two species delimitation analyses (ABGD and bPTP) were also carried out, from which can be inferred that A. aurantiacus and A. immaculifrons were different Molecular Operational Taxonomic Units. Material and images available on internet and literature show the species to be present in Cambodia, Laos, China, Hong Kong, Thailand, and Vietnam, with A. immaculifrons occurring in South Asia and further west. Anax immaculifrons therefore needs to be deleted from the checklists from Cambodia, Laos, China, Hong Kong, Thailand, and Vietnam, replaced by A. aurantiacus sp. nov. Further Key words. Anisoptera, new species, Anax immaculifrons, Thailand, larva, distribution
Noppadon Makbun, Koraon Wongkamhaeng and Tosaphol Saetung Keetapithchayakul. 2022. Anax aurantiacus sp. nov., A New Dragonfly from mainland Southeast Asia (Odonata: Aeshnidae). Odonatologica. 51(3/4); 301-339. DOI: 10.5281/odon.v51i3-4.a6 | ||||||||
| 10:27a | [Botany • 2022] Cornukaempferia srisumoniae (Zingiberaceae) • Revision of the Genus Cornukaempferia Mood & K. Larsen, and A New Species from Thailand
Abstract Cornukaempferia Mood & K. Larsen (Zingiberaceae) is revised. Seven species of Cornukaempferia have been recognized with their updated nomenclature including C. aurantiiflora Mood & K. Larsen, C. longipetiolata Mood & K. Larsen, C. larsenii P. Saensouk, C. chayanii Yupparach & Wongsuwan, C. kamolwaniae Picheans., Yupparach & Wongsuwan, C. argentifolia Boonma & Saensouk, and a new species, Cornukaempferia srisumoniae P. Saensouk, S. Saensouk & Boonma sp. nov. After comparison to all previously existing species in the genus, the morphological characteristics of a new species are the most similar to C. argentifolia, but different in certain morphological characteristics. This new species is described here along with its illustrations, photographs, ecology, etymology, and distribution are provided. Six species are endemic to Thailand, while one species, C. larsenii P. Saensouk is native to Thailand and Laos PDR. A revised key to 7 species and descriptions is also presented. Keywords: Cornukaempferia srisumoniae, new species, revision, Thailand, Zingiberaceae
Cornukaempferia srisumoniae P. Saensouk, Saensouk & Boonma sp. nov Cornukaempferia srisumoniaeis similar to C. argentifolia, but different in having sessile to subsessile petiole up to 0.7 cm long (vs. C. argentifolia has petiole 2.5-4.5 cm long); leaf sheath 4-5 cm long (vs. 7-8 cm long); lamina broadly ovate (vs. ovate), leaves upper surface green, sometimes with few silvery marking, midrib green (vs. upper silver without marking, midrib lighter silver, sometimes with reddish tinge along the midrib); leaves lower surface green (vs. red); bracts sparsely hairy (vs. glabrous); labellum broadly obovate, 4.2-4.3 X 4.0-4.2 cm, apex rounded (vs. obovate, 3.4-3.6 X 2.6-2.8 cm, apex emarginate, each lobe acute with incision 5-6 mm long); filament 6.9-7.3 mm long (vs. 3.8 mm long); anther 2.3-2.4 cm long (vs. 2.8-3.0 cm long). Etymology: The specific epithet "srisumoniae" is named after Associate professor Dr. Srisumon Sitathani, plant morphology and biology Specialist, and the founder of the Department of Biology. Faculty of Science, Khon Kaen University, where the Khon Kaen University Herbarium (KKU) is located. เปราะทองศรีสุมนตร์ Piyaporn Saensouk, Thawatphong Boonma and Surapon Saensouk. 2022. Revision of the Genus Cornukaempferia Mood & K. Larsen (Zingiberaceae), and A New Species from Thailand. Biodiversitas. 23: 5718-5729. smujo.id/biodiv/article/view/12278  | ||||||||
| 2:25p | [Botany • 2022] Monotropastrum kirishimense (Ericaceae) • A New Mycoheterotrophic Plant from Japan based on Multifaceted Evidence
Abstract Due to their reduced morphology, non-photosynthetic plants have been one of the most challenging groups to delimit to species level. The mycoheterotrophic genus Monotropastrum, with the monotypic species M. humile, has been a particularly taxonomically challenging group, owing to its highly reduced vegetative and root morphology. Using integrative species delimitation, we have focused on Japanese Monotropastrum, with a special focus on an unknown taxon with rosy pink petals and sepals. We investigated its flowering phenology, morphology, molecular identity, and associated fungi. Detailed morphological investigation has indicated that it can be distinguished from M. humile by its rosy pink tepals and sepals that are generally more numerous, elliptic, and constantly appressed to the petals throughout its flowering period, and by its obscure root balls that are unified with the surrounding soil, with root tips that hardly protrude. Based on genome-wide single-nucleotide polymorphisms, molecular data has provided clear genetic differentiation between this unknown taxon and M. humile. Monotropastrum humile and this taxon are associated with different Russula lineages, even when they are sympatric. Based on this multifaceted evidence, we describe this unknown taxon as the new species Monotropastrum kirishimense. Assortative mating resulting from phenological differences has likely contributed to the persistent sympatry between these two species, with distinct mycorrhizal specificity. Keywords: Fungal association, Integrative taxonomy, Mycoheterotrophy, Mycorrhizas, Reproductive isolation, SNP data, Speciation, Species delimitation
  
Monotropastrum kirishimense Suetsugu, sp. nov. Diagnosis. Monotropastrum kirishimense is similar to M. humile but differs in its rosy pink tepals, more numerous (4–11) elliptic sepals constantly appressed to the petals throughout its flowering period, and obscure root balls unified with the surrounding soil, with little protrusion of the root tips. Etymology. The species is named after the type locality, Kirishima. To distinguish it from Monotropastrum humile f. roseum (beni-bana-gin-ryo-so, in Japanese) described by Honda (1957), we use Kirishima-gin-ryo-so as a Japanese name, after the type locality. Japanese name. Kirishima-gin-ryo-so 「キリシマギンリョウソウ」 Kenji Suetsugu, Shun K. Hirota, Tian-Chuan Hsu, Shuichi Kurogi, Akio Imamura and Yoshihisa Suyama. 2022. Monotropastrum kirishimense (Ericaceae), A New Mycoheterotrophic Plant from Japan based on Multifaceted Evidence. Journal of Plant Research. DOI: 10.1007/s10265-022-01422-8 |
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