New liverwort records for Vietnam

A short collecting expedition to Vietnam in 2016 yielded 700 specimens of 170 liverwort species of which 79 were new to the flora of Vietnam, including 43 species new to Indochina. Many of the newly recorded species have meta-Himalayan distributions (that predicts occurrence of these taxa in the areas of north-west Vietnam situated in the south-easternmost spurs of the Himalaya). Some species were recorded based on the study of living material, permitting the examination of oil body characteristics for Riccardia and Calypogeia. The known taxonomic liverwort diversity of Vietnam is currently 379 taxa, estimated to represent ca 80% of the actual taxonomic diversity in the country.     

Alpinia newmanii sp. nov. (Zingiberaceae) from central Vietnam

Alpinia newmanii, a new species from central Vietnam, is described and illustrated. A morphological comparison with the most closely related species and a key to the species of Alpinia subsection Catimbium in Vietnam are provided.     

Two New Lacconectus Species from Vietnam (Coleoptera; Dytiscidae)

Two new species of Lacconectus Motschulsky are described from Vietnam, Lacconectus valeriae sp. n. and L. baolocensis sp. n., and a key is given for the species described from and occurring in that country. Together with the two new species, seven species are now known from Vietnam, and the number of Lacconectus species rises to 60.     

The Genus Rhyacophila Pictet (Trichoptera: Rhyacophilidae) in Vietnam

Currently, 20 species of the genus Rhyacophila are known from Vietnam. Of these, 17 species are distributed among eight species groups, with three species unassigned. Examination of material collected by personnel of the Royal Ontario Museum in Toronto, Canada has revealed six new species and five new records of Rhyacophila from Vietnam, distributed among six species groups, four of which are new to Vietnam. Newly described species include: Rhyacophila smithi, Rh. curriei, Rh. laocai, Rh. meyi, Rh. olahi, and Rh. fernandi. Rhyacophila bidens Kimmins, Rh. inaequalis Denning and Schmid, Rh. lhabu Schmid, Rh. malayana Banks, and Rh. rhombica Martynov are recorded from Vietnam for the first time. The females of four species, Rh. bidens, Rh. immaculata Mey, Rh. malayana Banks, and Rh. tamdaona Oláh, are described for the first time. All 31 species of Rhyacophila now known from Vietnam are included in this work, organized by branch and species group.     

越南苦苣苔科植物国家级分布新记录——大苞漏斗苣苔

漏斗苣苔属(Raphiocarpus Chun)是分布于中国至中南半岛一带的小属,主要产于中国华南西南抵越南北部至中部,但之前中越两国共有分布的该属物种仅有3个种。大苞漏斗苣苔[Raphiocarpus begoniifolius(Lévl.)Burtt]一度被认为是中国的特有种,仅分布在中国的广西西北部、贵州西南部、云南东南部和湖北西北部,尚未见有在越南的相关研究报道。该文首次报道了越南植物区系中大苞漏斗苣苔的国家级分布新记录,使得中越两国共有分布的该属物种上升到了4个种,并着重讨论了大苞漏斗苣苔与其近缘种长筒漏斗苣苔[Raphiocarpus macrosiphon(Hance)Burtt]的区别特征,进一步完善了越南所分布的漏斗苣苔属植物检索表。根据中越两国的各自与联合野外考察工作对该种的濒危现状进行了讨论,为中越两国开展该种乃至该属植物的保育提供了直接证据。凭证标本保存于越南生物资源与生态研究所标本馆(HN)中。     

Molecular assessment of Ulva (Ulvales,Chlorophyta) diversity in Vietnam including the new species U. vietnamensis

Species diversity of Ulva in Vietnam was investigated using three commonly used genetic markers, the nuclear encoded rDNA ITS region and the plastid encoded rbcL and tufA genes. Single locus species delimitation methods, complemented with morphological and ecological information resulted in the delimitation of 19 species. This diversity is largely incongruent with the traditional understanding of Ulva diversity in Vietnam. Only four species identified in this study, U. lactuca, U. reticulata, U. spinulosa, and U. flexuosa, have been previously reported, and seven species, U. ohnoi, U. tepida, U. chaugulii, U. kraftiorum, U. meridionalis, U. limnetica, and U. aragoënsis, are recorded for the first time from Vietnam. Seven genetic clusters could not be associated with species names with certainty. A new species, U. vietnamensis, is described from marine to brackish coastal areas from southern Vietnam based on its morphological and molecular distinctiveness from the currently known Ulva species. A comparison with recent molecular-based studies of Ulva diversity showed that species composition in Vietnam is similar to that of adjacent countries, including Japan, China, as well as Australia. Our study emphasizes the importance of molecular data in the assessment of Ulva diversity, and indicates that a lot of diversity may still remain to be discovered, especially in tropical regions.     

Miliusa cambodgensis sp. nov. (Annonaceae) from Cambodia and M. astiana,M. ninhbinhensis spp. nov. from Vietnam

The genus Miliusa in Cambodia and Vietnam is reviewed. Cambodia and Vietnam each harbors six species of Miliusa, including three which are described as new to science: one from Cambodia (Miliusa cambodgensis sp. nov.), the other two from Vietnam (M. astiana and M. ninhbinhensis spp. nov.). In addition, a complete nomenclature and relevant information about the Miliusa species previously known from Cambodia and Vietnam are provided, including keys to the Cambodian and Vietnamese species, the designation of a lectotype for M. baillonii and the synonymization of M. balansae var. elongatoides, M. chunii and M. sinensis with M. balansae.     

The species composition of rotifers in the water reservoirs of Central Vietnam

The rotifer fauna has been studied in four water reservoirs in the Khanh Hoa Province, Central Vietnam. A total of 65 species and subspecies and 22 genera representing 15 families have been found; 25 species and subspecies are identified as new to Vietnam. Morphometric characteristics are given for Filinia camascela Myers, Brachionus donneri Brehm, and B. dichotomus reductus Koste et Shiel. The rotifer fauna of Central Vietnam and those of other countries of Southeast Asia are compared. Some of the tropical and subtropical species recorded have been repeatedly reported from Russia.     

Occurrence of velvet-fishes of the genus <Emphasis Type="Italic">Cocotropus</Emphasis> (Teleostei: Scorpaeniformes: Aploactinidae) in Vietnam waters with descriptions of two new species

For the first time, the genus Cocotropus is recorded from the South China Sea and in the Vietnam fauna. Two new species are described—C. astakhovi and C. eksae spp. n. They are compared in detail with 14 previously known species of this genus. The fauna of velvet-fishes of Vietnam is revised. Previously noted for Vietnam Paraploactis sp. is attributed to C. astakhovi.     

Scorpions from the Island of Côn Son (Poulo Condore), Vietnam and description of a new species of Chaerilus Simon, 1877 (Scorpiones, Chaerilidae)

The scorpion fauna of the Island of Côn Son (Poulo Condore), Vietnam is briefly discussed and a new species, Chaerilus phami sp. n. is described. The new species is morphologically distinct from all the other species of Chaerilus described from the mainland in Vietnam.     

New species of Ophiopogon,Peliosanthes and Tupistra (Asparagaceae s.l.) in the flora of Vietnam

Five new species named Peliosanthes aperta, P. elegans, P. kenhillii, Tupistra densiflora and T. patula are described and illustrated. These species are very local in distribution and endemic to northern or southern Vietnam. Two other species, Ophiopogon ogisui and Peliosanthes griffithii, are recorded as new to the flora of Vietnam. A key to the species of Tupistra occurring in Indochina and its neighboring regions is also provided.     

Update on the praying mantises (Insecta: Mantodea) of South-East Vietnam

A report of Mantodea species collected in South-East Vietnam (provinces Dong Nai, Binh Phuoc and Lam Dong) is presented. New for Vietnam are the subfamily Phyllothelyinae, the tribe Anaxarchini of the subfamily Hymenopodinae and the species Leptomantella lactea (Saussure, 1870), Tropidomantis gressitti Tinkham, 1937, Amantis bolivari Giglio-Tos, 1915, Anaxarcha graminea Stål, 1877, Creobroter nebulosa Zheng, 1988, Phyllothelys breve (Wang, 1993), Ceratocrania macra Westwood, 1889, Ceratomantis saussuri Wood-Mason, 1876 and Theopompa tosta Stål, 1877, as well as five additional species whose precise identifications are less certain. Eighteen species are new for the South-East region and seven are new for the provinces sampled. The fauna of Vietnam now contains 69 species of Mantodea, 40 of which occur in the South-East region. Morphological, taxonomical and identification details for selected species are discussed and illustrated.     

A revision of the family Petrosaviaceae in Vietnam

The family Petrosaviaceae is represented by two species in Vietnam, viz. Petrosavia sakuraii restricted to the northern part of the country and P. stellaris distributed in its southern part. The latter species is shown to possess a wide range of distribution in Vietnam, though it was previously believed to be an exclusively Malesian species. The inclusion of P. sinii in P. sakuraii is confirmed. Details on distribution, illustrations and an identification key for these species are provided.     

Notes on some rust fungi in Vietnam

Sixteen rust species and two unconnected Peridermium collected in Vietnam are enumerated. For all the rust species except Hemileia vastarix, Olivea tectonae, and Puccinia thwaitesii, these are the first records of their occurrence in Vietnam. Some taxonomic and pathological considerations are noted for two economically important pine stem rusts.     

越南杜鹃花科新记录——深裂树萝卜(英文)

报道了越南杜鹃花科(Ericaceae)1新记录种——深裂树萝卜(Agapetes lobbii C.B.Clarke)。该种产自越南北部莱州省(Lai Chau)的Sin Ho地区,凭证标本保存在越南科学技术院生态和生物资源研究所标本馆(HN)。     

Annotated checklist of species of the family pomacanthidae (Actinopterygii,Perciformes) from the Nha Trang Bay (South China Sea,Central Vietnam)

Angelfishes (Fam. Pomacanthidae) of the Nha Trang Bay (Central Vietnam) are reviewed. Fourteen species of pomacanthids belonging to six genera (Apolemichthys, Centropyge, Chaetodontoplus, Genicanthus, Pomacanthus, and Pygoplites) are recorded in the bay. All species are identified on preserved material. Two new species for the bay are found: Centropyge bispinosa and C. heraldi. C. herald is new species for coastal waters of Continental Vietnam and of adjacent areas. For all pomacanthid species of the bay, areas are described, brief diagnostic characteristics are supplied, and distribution by biotopes and depths is indicated based on data of underwater observations.