Shuichiro Tagane

Kagoshima University | Kadai

Spicantopsis hancockii (Blechnaceae) was once thought to be endemic to Taiwan, and later known to occur in the Tokara Islands in southern Japan. Because of its high morphological similarity to S. niponica endemic to Japan, the identification of the Tokara Archipelago populations has been controversial. MIG-seq analysis using 2324 SNPs revealed that...

Two new species of Lasianthus (Rubiaceae), L. bolavenensis Tagane & Soulad., and L. laoticus Tagane, Soulad. & Nob.Tanaka from Bolaven Plateau, southern Laos, are described and illustrated, with their vernacular names and preliminary conservation status. In addition, L. repoeuensis Pierre ex Pit. is recorded in Laos for the first time.

A new species of the genus Alpinia subgenus Alpinia subsection Catimbium (Zingiberaceae), A. nelumboides is described from Laos and Vietnam. It is morphologically most similar to A. kwangsiensis, but distinguished by its large pinkish bracteoles, shorter petioles, entire margin of labellum, and larger pubescent ovoid fruits.

A new species of Smilax, S. bolavenensis (Smilacaceae), is described from the Bolaven Plateau, southern Laos. It is similar to S. elegantissima in its elongated inflorescence with slightly zigzagged rachis longer than 20 cm, but the new species is distinguished by its terete stem and petiole (vs. 4-angled with each corner narrowly winged in S. eleg...

Eremochloa ciliatifolia Hack. (Poaceae) is newly recorded from Laos. Description and photographs are provided based on Lao materials.

Leptochilus ornithopus T. Fujiw. & B.H. Quang (Polypodiaceae, Polypodiales) is described as a new species, based on integrated evidence from phylogenetic and morphological examinations. The new species is most similar to L. digitatus and L. longipes but distinguished from both by its having ovate rhizome scales, narrowly cuneate and gradually reduc...

The premise of the study Though phenological studies in montane forests are important, particularly in tropical Asia where primitive angiosperms are found, the phenology in these forests is still poorly understood. To characterize the phenological patterns and reveal the relationships between meteorological factors and phenology, we observed the le...

Amami‐Oshima and Tokunoshima Islands (the Amami Islands) are part of an important area for biogeography in Japan. Although the uniqueness of the islands' flora is well recognized, their plant diversity, including non‐tree life forms, has yet to be compared with that of other regions. Here, we characterize the plant community structure of the Amami...

Recent floristic research suggests that tropical lowland forests in Borneo may have exceptionally high vascular epiphyte diversity. However, few studies have assessed the characteristics of epiphyte flora within the Asian tropics, or have performed comparisons with tropical forests in other biogeographical regions, especially the African and Americ...

Croton nagaoi (Euphorbiaceae) is described based on a specimen collected from the basin of the Bolaven Plateau, southern Laos. It is most similar to Croton thorelii Gagnep. of Laos, Cambodia, Thailand and Vietnam in size and shape of lamina, short petioles less than 1 cm long, and basal glands lateral on the abaxial midrib base, but different in ha...

Two species of Apocynaceae, Chilocarpus denudatus and Kopsia vidalii, are newly recorded for Laos. The genus Chilocarpus is also a new generic record for Laos. Notes on Parsonsia penangiana are also provided. A description, photographs, ecological information, vernacular names, and an IUCN conservation status based on our collections are provided f...

Hydrangea marunoi Tagane & S. Fujii, from the Kimotsuki Mountains in the Ohsumi Peninsula, southern Japan, is described and illustrated. It is morphologically similar to H. alternifolia in having three-petaloid calyx lobes in marginal flowers, but is distinguished by the larger stamen number, and longer styles and seeds. Multiplex ISSR genotyping b...

Lithocarpus cadamensis Ngoc & Son, a new species of Fagaceae, is described and illustrated from Mt. Ca Dam, Tra Bong District, Quang Ngai Province, central Vietnam. The new species is characterized by its large leaf blades with long petioles, solitary and subsessile cupules which almost completely cover the nut, and spiny cupule scales, in a combin...

Beilschmiedia bidoupensis (Lauraceae) is described from Bidoup-Nui Ba National Park in the southern highland of Vietnam. The new species is characterized by lanceolate terminal buds that are ca. 2.5 mm long without coriaceous scales and covered with whitish brown hairs, glabrous twigs, predominantly alternate leaves evenly arranged on branches, ell...

This data paper presents the vascular plant biodiversity sampled from four plots on Amami‐Oshima Island, three plots on Tokunoshima Island, and one plot on Okinawa Island within the natural World Heritage site, and an additional three plots in southern Kyushu using the standardized belt‐transect survey method during July 2012 to October 2020. The d...

Herbarium specimens are dried plants mounted onto paper. They are used by a limited number of researchers, such as plant taxonomists, as a source of information on morphology and distribution. Recently, digitised herbarium specimens have begun to be used in comprehensive research to address broader issues. However, some specimens have been misident...

Five new species of Urophyllum Wall. endemic to Cambodia and Vitnam are herein described and illustrated, and U. annamense (Pierre ex Pit.) Yooprasert, Culham & Utteridge, stat. nov. is raised to species status. The new species are unique due to the morphological combination of indumentum, secondary venation, stipule shape and inflorescence structu...

The taxonomic identity of Garcinia bonii Pit. (Clusiaceae) in Vietnam was re-evaluated based on the original description and type materials and reclassified in sect. Oxycarpus, not in sect. Hebradendron (previous treatment). Garcinia bokorensis H. Toyama & Yahara of Cambodia is proposed as a new synonym of G. bonii based on a morphological comparis...

A new species Camchaya bolavenensis (Asteraceae: Vernonieae: Centrapalinae) from Dong Hua Sao National Protected Area located in Bolaven Plateau, southern Laos, is described and illustrated. It resembles C. gracilis and C. thailandica in morphology but distinguished by its basally decumbent stem, margin of lamina with distinct (1-)2-3 teeth, 2-4 mm...

Nothapodytes (Icacinaceae) is a genus of seven to eleven evergreen or deciduous tree species distributed in tropical Asia from India to Japan. Nothapodytes nimmoniana sensu lato is the most widespread species of the genus, being reported sporadically throughout South Asia, Southeast Asia, Taiwan, and Japan’s southwest islands. Nothapodytes amamianu...

Citronella suaveolens is reported from Quang Nam Province in southern Vietnam, representing the first record of this species and the genus Citronella in the country and in mainland Southeast Asia in general. Detailed photographic illustrations of studied specimens are provided. A key to the Vietnamese genera and species of Cardiopteridaceae is pres...

Herbarium specimens are dried plants mounted to paper. They are used by a limited number of researchers, such as plant taxonomists, as a source of information on morphology and distribution. Recently, digitised herbarium specimens have begun to be used in comprehensive research to address broader issues. However, some specimens have been misidentif...

According to the contemporary classification of Hydrangea native to Japan, H. serrata is a polymorphic species including six varieties. We discovered a plant identified as H. serrata , but morphologically distinct from previously known varieties, in Yakushima island where approximately 50 endemic species are known. To determine the relationship of...

An unknown taxon of Stellaria was discovered in Yakushima, a Japanese island known to harbor several endemic species. To determine the identity of this taxon, this study employed MIG-seq for the reconstruction of a finely resolved phylogenetic tree of the newly discovered taxon, along with some related species of Stellaria . The results showed that...

Six new species of Gesneriaceae from Laos, namely Didymocarpus angustiflorus Souvann. & Lanors., D. bolavenensis Souvann., Soulad. & Phonep., D. laoticus Souvann. & Lanors., D. trilobus Souvann. & Phonep., Hemiboea olivifolia Souvann. & Tagane and Paraboea planiflora Souvann. & Lanors., are described and illustrated. Additionally, Aeschynanthus bra...

Three new species, Lithocarpus bidoupensis Ngoc & Tagane, L. congtroiensis Ngoc & Yahara, and L. hongiaoensis Ngoc & Binh are described from Bidoup-Nui Ba National Park, Central Highland of Vietnam. Morphological analyses and Maximum likelihood tree based on genome-wide SNPs support the distinction of those species from the previously known taxa in...

The new species Beilschmiedia danhkyii (Lauraceae) is described from Ha Tinh Province, Central Highland of Vietnam. Beilschmiedia danhkyii is characterized by ferruginous hairy terminal buds, branchlets and abaxial surfaces of lamina, subopposite leaves, adaxially impressed midrib and secondary veins, short inflorescence 2–3(–5) cm long, and large...

Two new species of Lauraceae, Beilschmiedia bolavenensis and Machilus champasakensis, are described and illustrated based on specimens from the Bolaven Plateau, southern Laos, and Lindera annamensis, Litsea ferruginea, L. lanceifolia, L. pseudoelongata, L. verticillata, Machilus angustifolia, and M. robusta (all Lauraceae) are reported for the firs...

Begonia murina Craib from central and B. poilanei Kiew from southern of Laos, are newly recorded in Laos. Based on Lao materials, detailed description, photographs, and notes on habitat, ecology, & taxonomic discussion of these two species compared with the Chinese, Thai, & Vietnamese types are provided.

Desmodium s.l. (Leguminosae tribe Desmodieae) is highly diverse in Indochina at the generic level. Among the segregates from Desmodium s.s., Grona has most differentiated in the region with 16 species. This paper adds two species of Grona to the region: a new species, G. laosensis H.Ohashi, K.Ohashi & Tagane, and a new combination, G. ovalifolia (P...

The mycoheterotrophic genus Thismia shows a great number of structural and ecological traits which are rare or unique for angiosperms. Pollen morphology of this genus is still poorly known. Pollen of Thismia was reported to be porate with one to several pores. Position of the pores is unknown, and therefore, the pollen type has not been established...

Twelve pteridophytes from six families are reported from the Bolaven Plateau, southern Laos, as new records to the flora of Laos. For each species, voucher specimens, photographs and additional information including geographical distribution, ecology and taxonomic notes are provided.

Molecular phylogenetic studies of Hosta pulchella (Asparagaceae) and its relatives, which are native to Japan, have been conducted and resulted in a highly resolved phylogeny. Specifically, the relationship of H. pulchella to H. alata Hatusima, nom. nud. is investigated. These data include genome-wide SNPs obtained through conducting multiplexed IS...

A new species of Quercus (Fagaceae), Q. ngochoaensis, from Ba Vi National Park, Ha Noi, northern Vietnam is described and illustrated. This species is morphologically similar to Q. glauca in having glabrous twigs, cuneate leaf base, two or three fruits per infructescence, almost entire margin of lamellate rings on cupule except the lowest three rin...

We are delighted to publish this book, “A Picture Guide for the Flora of Bidoup-Nui Ba National Park I: Mt. Langbian”. To enrich our knowledge of the fora of Bidoup-Nui Ba National Park, seven botanical surveys were conducted in the protected area in 2012–2018. Among these surveys, this book focusing on the fora of Mt. Langbian was resulted fro...

Thottea aroangensis T.A. Le, D. Dien & Tagane (Aristolochiaceae) is described based on the specimen collected from the A Roang commune, A Luoi district, Thua Thien Hue province, central Vietnam. This species is characterized by subshrub habit 70-90 cm tall, inflorescence at base of stem close to ground level, campanulate and obscurely lobed periant...

A new species of Strobilanthes (Acanthaceae), S. bolavenensis, is described from Bolaven Plateau, southern Laos. Photos and illustration are given together with information of habitat, ecology, vernacular name and preliminary conservation assessment based on IUCN criteria.

leyera bokorensis Nagam. & Tagane (Pentaphylacaceae), from Bokor National Park in southern Cambodia and Binh Dinh Province, central Vietnam, is illustrated and described as new. Cleyera bokorensis is a rheophytic shrub characterized by oblong-elliptic leaves with sparsely and obtusely serrate to serrulate margin, 7–10 pairs of secondary veins, soli...

In the course of inventory of flowering plants in Myanmar, nine species representing nine genera and eight families are recorded for the first time from Myanmar: Arisaema sukotaiense Gagnep. (Araceae), Aristolochia perangustifolia Phuph., Thottea parviflora Ridl. (Aristolochiaceae), Calceolaria tripartita Ruiz & Pav. (Calceolariaceae), Murdannia ve...

A new variety, Justicia vagabunda Benoist var. laxiflora K. Yamaz. & Tagane (Acanthaceae), discovered during botanical surveys in Bolaven Plateau, southern Laos, is described and illustrated. Variety laxiflora is distinguished from var. vagabunda by its longer petiole (0.1-)0.5-3 cm long, longer and laxer inflorescence to 15.3 cm long, more-flowere...

Two new species of Sonerila Roxb. (Melastomataceae), S. erectifolia Phonep., Soulad. & Tagane sp. nov. from southern Laos, and S. souvannii Phonep. & Soulad. sp. nov. from central Laos, are described and illustrated. Comparisons with morphologically similar species are presented, along with ecological information and preliminary conservation status...

The most comprehensive phylogenetic tree showing relationships among the large tropical genus Ardisia and related genera of subfamily Myrsinoideae (Primulaceae), based on nucleotide sequences of the nuclear ribosomal internal transcribed spacer (nrITS) region from 177 samples predominantly from the Neotropics, East Asia, Indo-China and Malesia is p...

A new species of Paraboea (Gesneriaceae), P. khotamiae, from a limestone karst in central Laos, is described and illustrated. The species resembles Paraboea bintangensis, P. prazeri and P. robusta, but differs in leaf shape and floral features, especially corolla shape and size, the interior of the corolla tube, and capsule characters. In addition,...

Ardisia pyrotechnica Julius, Tagane & Utteridge (Primulaceae-Myrsinoideae) is described and illustrated as a new species from Sarawak, Borneo. The new species is assigned into Ardisia subgenus Pyrgus based on its inflorescence terminal on specialized lateral branches below the indeterminate primary axis, which is arising directly from the stem. Rem...

Six pteridophyte species of five families and 12 spermatophyte species of 10 families are reported from Bolaven Plateau, southern Laos, as new records to the flora of Laos. Moreover, two new species, Sterculia bolavenensis (Malvaceae) and Wikstroemia bolavenensis (Thymelaeaceae), are described. For each species, voucher specimens are cited, photogr...

A new species, Sonerila bolavenensis (Melastomataceae), from the Bolaven Plateau, southern Laos, is described and illustrated. Sonerila bolavenensis is easily recognized by its tiny stature up to 3 cm tall (including inflorescence), small ovate to rounded leaves 0.3–1.4 × 0.35–1 cm, petioles 0.2–0.8 cm long, and 1-flowered inflorescence. A vernacul...

Mycoheterotrophic orchids depend completely on mycorrhizal fungi for their supply of carbon. The life-history traits of mycoheterotrophic plants (MHPs) can differ according to the characteristics of the associated mycorrhizal fungi. We compared the life-history strategies of two mycoheterotrophic orchids associated with wood- and leaf litter-decayi...

Impatiens subfalcata Soulad. & Tagane, a new species of Balsaminaceae from southern Laos, is described and illustrated. The new species is morphologically similar to Impatiens attopeuensis and I. notoptera in having succulent stems, serrate leaf margins and pinkish flowers, but distinguished from these two by its falcate lanceolate or oblanceolate...

It is vital to measure the levels of genetic diversity and differentiation between populations in a species to understand the current genetic structure and evolution of the species. Here, MIG-seq (multiplexed inter-simple sequence repeat genotyping by sequencing) was employed to assess the genetic variation in two tropical leguminous tree species,...

Twenty-five plant taxa in 14 families are newly recorded for the flora of Laos. The genus Sarcopyramis (Melastomataceae) is new to the country. For each taxon, voucher specimens, the general distribution and photographs, together with taxonomic notes, are provided.

A botanical expedition to southern Laos recorded the occurrence of Zingiber collinsii Mood & Theilade (Zingiberaceae), which had been recognized as endemic to Vietnam. Since this is a little-known species, detailed description, illustration, notes on habitat, ecology, and taxonomic discussion compared with the Vietnamese type are provided based on...

A new species of Claoxylon (Euphorbiaceae), C. langbiangense, from Bidoup-Nui Ba National Park, Lam Dong Province, southern Vietnam, is described and illustrated. It resembles C. longifolium of Cam- bodia, NE India, Indonesia, Laos, Malaysia, Papua New Guinea, Thailand and Vietnam, but is distin- guished by its serrate-dentate leaf margin, larger s...

A new species of Diospyros, D. laoensis, from Nam Kading National Protected Area, central Laos, is described and illustrated. It morphologically resembles D. longipilosa of Thailand, D. martabanica of India and Southeast Asia, and D. xishuangbannaensis of China, but is distinguished by its adaxially glabrous midrib, shorter calyx lobes and shorter...

Two new species of Eriocaulon (Eriocaulaceae), E. cormosum and E. vientianense, from Laos, are described and illustrated. Preliminary conservation assessments and vernacular names are provided.

Fifteen new species of angiosperms, Ilex bidoupensis, I. hongiaoensis (Aquifoliaceae), Mastixia hongiaoensis (Cornaceae), Daphniphyllum hongiaoense (Daphniphyllaceae), Platea hongiaoensis (Icacinaceae), Neolitsea bidoupensis, N. hongiaoensis (Lauraceae), Nyssa bidoupensis, N. hongiaoensis (Nyssaceae), Eriobotrya hongiaoensis, Prunus hongiaoensis (R...

This paper presents a re-evaluation of the taxonomic identity of Sciaphila major described from Sarawak, Borneo, Malaysia which has been considered conspecific with S. secundiflora. We revealed that S. major is clearly distinguishable from S. secundiflora s.s. by the arrangement of flowers on rachis (spirally and subdensely arranged vs. secundly an...

A new species, Lasianthus konchurangensis V.S.Dang, T.B.Tran & T.D.Ha (sect. Lasianthus), is described and illustrated from Kon Chu Rang Nature Reserve, Gia Lai Province, the Central Highlands of Vietnam. Lasianthus konchurangensis resembles L. foetidissimus but differs in having larger leaves, more secondary veins, larger calyx and purple corolla....

Coleus bolavenensis, a new species from Bolaven Plateau, southern Laos is described and illustrated. A preliminary conservation status is provided.

Natural history collections and tropical tree diversity are both treasure troves of biological and evolutionary information, but their accessibility for scientific study is impeded by a number of properties. DNA in historical specimens is generally highly fragmented, complicating the recovery of high-grade genetic material. Furthermore, our underst...

Phenology of tropical montane forests has been less well studied than tropical lowland forests. To bridge this gap, five plots were installed along the elevation from 1460 m to 1920 m in Bidoup-Nui Ba National Park in southern Vietnam, where monthly average temperature fluctuated from 14.7 ºC to 18.0 ºC with the difference of only 3.3 ºC, and month...