Maxim S. Nuraliev

Lomonosov Moscow State University | MSU · Department of Higher Plants

Within Araliaceae, at least four groups are recognized to have significant deviations from the typical euasterid flower groundplan: (1) Asian Schefflera clade (incl. Tupidanthus), (2) Plerandra group, (3) Tetraplasandra and (4) Osmoxylon. The main trends of flower structure variation are: reduction of calyx, increase in number of stamen whorls, inc...

Flowers of Tupidanthus show an extreme case of floral polymery among asterids. Floral development and gynoecium structure have been examined. The floral meristem has a complex folded shape. The tiny calyx is initiated as a continuous ring primordium. The corolla is initiated as a lobed ring and develops into a calyptra. All stamen primordia appear...

Aspidistra tripartita, a new species of Asparagaceae, is described and illustrated. The species was discovered in 2019 in Son La Province, northern Vietnam. Aspidistra tripartita belongs to a group of species characterized by campanulate to cupulate perianth tube and deeply lobed stigma. The new species is readily distinguishable from the other spe...

The paper presents new data on the orchid diversity of Vietnam obtained mainly during the fieldwork of 2020–2023, as well as a result of investigation of the herbarium collections of Russia and Vietnam. It includes two species new to science, Bidoupia micrantha and Hylophila vietnamensis, and three species new to the native flora of Vietnam, i.e. D...

The paper contributes to a construction of a comprehensive sectional subdivision of the mycoheterotrophic genus Thismia through elucidating nomenclaturally correct application of the existing names and reshaping the earlier proposed species groups in line with the ideas on phylogenetic relationships. The name Thismia sect. Glaziocharis widely used...

The paper presents new data on the orchid diversity of Vietnam obtained mainly in the course of the fieldwork in 2020–2023, as well as from the investigation of the collections stored at the Herbaria of Russia and Vietnam. It includes descriptions of four species (Appendicula spicata, Dendrobium khanhii, D. vietii, Listera anthropophora) and one va...

Thismia papillata, a new species of Thismiaceae, is described and illustrated. The species was discovered in 2023 in Thanh Hoa Province, northern Vietnam. The new species is readily distinguishable from most of its congeners by the presence of appendages of outer and inner tepals, inner tepals fused into a mitre, absence of a wing-like appendage of...

The orchid genus Vietorchis comprises three species, all discovered in the 21 century. Each of these species is achlorophyllous, mycoheterotrophic and is known to be endemic to Vietnam. The type species of the genus, V. aurea, occurs in a single location in northern Vietnam within a lowland limestone karstic area. Vietorchis furcata and V. probosci...

Cyrtandromoea sudhansui, a new species of Phrymaceae, is described and illustrated. The species was discovered in the Eastern Himalayas in 2023 during a botanical survey in Arunachal Pradesh, India. Cyrtandromoea sudhansui is unique within the genus in having blue corolla; it also differs from the other species of Cyrtandromoea in the following com...

39 Novelties in Aspidistra (Asparagaceae, Convallarioideae) with erect stems in the flora of Vietnam: A. quanii, a new species, and A. erecta, a new national record Abstract The paper reports two species of Aspidistra newly discovered in the flora of Vietnam. It includes a description of A. quanii, a species new to science found in the central part...

Alexey Borisovich Shipunov Alexey Shipunov was an outstanding person in many ways. An accomplished botanist, he was also a programmer and a teacher. One of his many impressive features was his universality. Indeed, he was interested in a vast range of things, and his professional scope accordingly tended to be universal: for example, as a taxonomis...

A synopsis of the orchid genus Didymoplexiella is presented for Cambodia, Laos and Vietnam. Uncertainties in morphological delimitation of the species of Didymoplexiella are addressed in the context of the new data on variation of labellum structure; re-identification of a considerable number of specimens is performed in accordance with the current...

The seventh paper of the series on orchid diversity in Vietnam includes descriptions of four species new to science (Goodyera umbonata, Myrmechis brachyscapa, Rhomboda obcordata, and Vietorchis proboscidea) and five new national records (Calanthe speciosa, Habenaria coultousii, Myrmechis urceolata, Paphiopedilum barbigerum var. barbigerum, and Peri...

The monotypic genus Pseudomarrubium is perhaps the most poorly understood taxon within the subfamily Lamioideae (Lamiaceae). While advances in molecular phylogenetics have clarified the phylogeny and taxonomy of Lamioideae, the systematic placement of Pseudomarrubium remains unclear, as it has never been tested using molecular phylogenetic analyses...

Meistera muriformis (Zingiberaceae: Alpinioideae), a new species from southern Vietnam is described and illustrated. The description is accompanied by additional notes on etymology, ecology and phenology, distribution, and preliminary IUCN assessment. Notes on differences from morphologically similar congeners are provided. The new species is diagn...

Burmannia shows a set of floral traits that suggest elaborate mechanisms of animal-mediated pollen transfer. These include flower coloration, septal nectaries and a long and narrow floral chamber. The stamens are synorganized with the common style restricting the entrance to the floral chamber, sometimes forming a gynostegium. Contrary to this appa...

Peliosanthes laotica is described and illustrated as a new species from Laos (Bolikhamsai province). It is most similar to P. cupuliformis in floral structure, but differs by longer, narrowly elliptic to lanceolate leaf blade, pedicellate (vs sessile) flowers, which are longer and wider, and obconic ovary higher than 1 mm.

Peliosanthes linearifolia, a new species of Asparagaceae, is described and illustrated. The species was discovered in 2022 in Quang Nam Province, southern Vietnam. Peliosanthes linearifolia is remarkable for its linear to narrowly lanceolate leaves that are less than 1.3 cm wide. Such leaves were previously known only in P. graminea. Based on the f...

Heliacria Bo Li, C.L. Xiang, T.S. Hoang & Nuraliev and H. maritima Bo Li, C.L. Xiang, T.S. Hoang & Nuraliev, a new genus and a new species of Scutellarioideae (Lamiaceae) endemic to coastal areas of south-central Vietnam, are described and illustrated. Heliacria is distinct from the other five genera of Scutellarioideae by having climbing habit, la...

Findings of two species of Aspidistra, i.e. A. obliqua and A. triradiata, are reported from Guangxi Zhuang Autonomous Region, representing the first documented records of these species from China. Both species were earlier considered to be endemic to northern Vietnam. Analytical photographs of the studied plants in living state are provided. Morpho...

Morphological variability of the widespread Aeginetia acaulis is reassessed in the context of the taxonomic boundaries of this species. Aeginetia sessilis considered to be endemic to the Western Ghats of India is demonstrated to lack any clear structural differences from A. acaulis, representing a morph of the latter species with shortly pedicellat...

Cyrtandromoea grandiflora is reported from Dien Bien and Lai Chau provinces in Northern Vietnam, representing the first record of this species and the genus Cyrtandromoea in the country. Detailed photographic illustrations of studied specimens are provided. A key to the Vietnamese genera and species of Phrymaceae is presented.

A revision of the ginger genus Geostachys (Zingiberaceae: Alpinioideae: Alpinieae) in Cambodia, Laos and Vietnam is presented. Three species are formally recognised, all endemic to the area of study, including one new species from central Vietnam. Lectotypes are designated for G. annamensis and G. pierreana. The uncertainty about the type locality...

Mitreola capitata, a new species of Loganiaceae, is described and illustrated. The species was discovered in 2022 during a botanical survey of Phong Nha-Ke Bang National Park (Quang Binh Province, northern Vietnam), where it inhabits a steep limestone rock. Mitreola capitata is remarkable for its habit that includes a leaf-rosette, compact head-lik...

Parahellenia trongduyii, a new species of Costaceae from Vietnam, is described and illustrated. The new species is similar to P. tonkinensis, but differs in unbranched or barely branched stems, narrowly triangular-lanceolate glabrous buds, bract apex with a soft mucro, yellow to whitish yellow labellum with longitudinal orange to red lines at cente...

The basalmost monocot genus Acorus is well-known for its use in traditional oriental medicine. It comprises the groups of A. calamus and A. gramineus. A recent study recognized three species in the latter group, A. gramineus, A. macrospadiceus, and A. tatarinowii. The material currently known as A. tatarinowii has been extensively studied as a sour...

Memorial Bibliography of Alexey Borisovich Shipunov

Ceriscoides glabra, a new species of the tribe Gardenieae (Rubiaceae), is described and illustrated. The species was discovered in 2017–2018 in Kon Chu Rang Nature Reserve (Gia Lai Province, southern Vietnam), in the vicinity of the locally well-known K50 waterfall, also known as Hang En waterfall. The new species differs from its congeners by the...

Leptomischus multiflorus, a new species of the tribe Argostemmateae (Rubiaceae), is described and illustrated. The species was discovered in 2022 in Quang Nam Province, southern Vietnam. The new species is characterized by rich indumentum on almost all plant parts, distylous flowers, and minutely puberulent ovary disk. Leptomischus multiflorus diff...

We report three species of angiosperms found in Kon Chu Rang Nature Reserve representing new records for Vietnam. Kon Chu Rang Nature Reserve is located in the Central Highlands of Vietnam, being a part of a recently established Kon Ha Nung Highland Biosphere Reserve. Euphorbia bokorensis (Euphorbiaceae) appears to be widely distributed throughout...

Meiogyne rubra Jaikhamseub, Damth. & Chaowasku sp. nova and M. vietnamica Jaikhamseub, T.A. Le & Chaowasku sp. nova (Annonaceae) from Vietnam are described and illustrated. Molecular phylogenetic reconstructions based on up to eight plastid DNA regions (matK, ndhF, rbcL and ycf1 exons; trnL intron; ndhF-rpl32, rpl32-trnL and trnL-trnF intergenic sp...

The paper presents a description of a new species, Didymoplexis gibbosa (Gastrodiinae, Gastrodieae) discovered recently in southern Vietnam. This is the fifth species of the genus reported from Vietnam. The new species is most similar to the widely distributed D. pallens. Description of the discovered species is accompanied with data on ecology, ph...

A reassessment of taxonomy and geographical distribution of a widespread Asian mycoheterotrophic species Petrosavia sakuraii is presented. Petrosavia amamiensis recently described from the Japanese Ryukyu Islands is demonstrated to fit closely the morphological diversity of P. sakuraii. Data from geography, molecular phylogenetics and reproductive...

A new species, Vanilla cardinalis (Orchidaceae, Vanilloideae) discovered in southern Vietnam (Phu Yen Province, Song Hinh District) is described and illustrated. Data on ecology, phenology, distribution, and estimated IUCN Red List conservation status of the new species are provided. Differences of V. cardinalis from its morphologically similar con...

An updated checklist of the family Burmanniaceae in Cambodia, Laos and Vietnam is provided. The checklist comprises a single genus, Burmannia, and 15 species, of which one is fully autotrophic, six species are partially mycoheterotrophic, and eight species are fully mycoheterotrophic (non-photosynthetic). Burmannia itoana earlier known only from Ja...

Species of the genus Burmannia possess distinctive and highly elaborated flowers with prominent floral tubes that often bear large longitudinal wings. Complicated floral structure of Burmannia hampers understanding its floral evolutionary morphology and biology of the genus. In addition, information on structural features believed to be taxonomical...

Peliosanthes luteoviridis is described and illustrated as a new species from southern Vietnam (Dong Nai Province, Cat Tien National Park). It is most similar to P. macrostegia in having stamens forming a hemispheric corona and a pistil somewhat abruptly narrowing to a conoid style, but differs mainly in dense inflorescence, terete peduncle, entirel...

The paper summarizes the knowledge on three Vietnamese species of Ericaceae. Craibiodendron yunnanense is newly documented for the flora of Vietnam. The presence of Lyonia villosa in the country is confirmed by specimen citation. We publish a new combination, Vaccinium glaucorubrum, to accommodate the taxon earlier known as Vaccinium gaultheriifoli...

The northern temperate genus Dracocephalum consists of approximately 70 species mainly distributed in the steppe-desert biomes of Central and West Asia and the alpine region of the Qinghai-Tibetan Plateau (QTP). Previous work has shown that Dracocephalum is not monophyletic and might include Hyssopus and Lallemantia. This study attempts to clarify...

We summarize the knowledge on taxonomy and distribution of the genus Parnassia in Vietnam. Two species of the genus are found in Vietnam. We report additional records of P. wightiana, which appears to inhabit the provinces Ha Giang and Yen Bai. We provide detailed morphological description of the Vietnamese populations of this species, and discuss...

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...

A new species of Aspidistra, A. sonlaensis, is described and illustrated from Son La Province in northern Vietnam. The new species is morphologically close to A. micrantha, but differs in number of perigone lobes, anther position and pistil shape. The new species is accessed as Data Deficient (DD) according to the IUCN categories and criteria.

While reproductive biology in the mycoheterotrophic family Thismiaceae has long been discussed, only fragmentary knowledge on this issue has been accumulated to date. Direct investigations performed for several species of the family indicated xenogamous mating system and pollination by various dipteran insects. Data on dichogamy, floral nectar, flo...

A synopsis of the genus Chionanthus is presented for Cambodia, Laos and Vietnam. Thirteen species, including four species endemic to the area, are recognized. Amongst them, twelve species, including two endemic species, are found in Vietnam, and nine and five species are recorded in Laos and Cambodia, respectively. Several species are reported as n...

Micromorphological characters of leaf epidermis were investigated in 69 species of Aspidistra using scanning electron microscopy. Sculpture of epidermis varies from smooth to verrucose and rugose in the genus. The abaxial epidermis of some species bears papillae, whereas the adaxial surface uniformly lacks the papillae. Sculpture type of epidermis...

This research provides a description and illustrations for a new species from the Phong Nha-Ke Bang National Park, Cynanchum quangbinhense. The distribution, habitat, phenology and conservation assessment for the species are also presented. The new species differs from closely related species, C. ovalifolium in many characters such as leaf shape, i...

The paper provides additions to the known diversity of Begonia in Vietnam and Laos. One species new to science from Lao PDR (B. vivipara) and three new species from Vietnam (B. aspersa, B. gracilifolia, B. maculifolia) are described. Three species (B. rotundilimba, B. versicolor, B. wenshanensis) are reported as new records for the flora of Vietnam...

Ardisia patentiradiosa C.M. Hu & Nuraliev (Primulaceae) collected from montane forest of Gia Lai Province, Vietnam, is described and illustrated. Its distinguishing characters from its closest relatives, Ardisia gracilenta C.M. Hu & J.E. Vidal and A. pitardii C.M. Hu & J.E. Vidal, are discussed.

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...

Pseudomonomerous gynoecia with three (or four) carpels are unknown in the species-rich core group of Apiales, but this condition is shared by three species-poor families (Pennantiaceae, Torricelliaceae, Griseliniaceae) that form the basal grade of the order. Testing a hypothesis on the ancestral nature of carpel dimorphism in Apiales requires compa...

The plant family Balanophoraceae consists entirely of species that have lost the ability to photosynthesize. Instead, they obtain nutrients by parasitizing other plants. Recent studies have revealed that plastid genomes of Balanophoraceae exhibit a number of interesting features, one of the most prominent of those being a highly elevated AT content...

The present work is an effort to untangle the taxonomy of Phlogacanthus pulcherrimus, a poorly known species reported here for the first time for the flora of Vietnam. Fresh specimens of this species were collected from three localities in Southern Vietnam. They provided new insights to its appearance and morphology. Phlogacanthus pulcherrimus can...

Begonia xuansonensis, a new species from northern Vietnam, is described and illustrated. The new species is characterized by reddish-orange to orange tepals, which is a rare type of flower coloration in asian species of the genus. Begonia xuansonensis is most similar to B. lowiana, but differs from the latter by stipules 4-6 × 1.5-2 mm, orange tepa...

We describe and illustrate Ophiopogon robustus and Peliosanthes rubra from northern Laos and P. convallarioides from central Vietnam as species new to science. Ophiopogon robustus is close to O. platyphyllus from southern China, P. rubra is similar to P. densiflora from Laos and P. convallarioides is close to P. argenteostriata from Laos and Vietna...

Leptomischus anisophyllus, a new species of Rubiaceae, is described and illustrated, and its conservation status is discussed. The species was discovered in 2017 during a botanical survey of Pu Mat National Park (Nghe An Province, Central Vietnam). The new species is remarkable by its anisophylly, a rare feature in Leptomischus. Besides, Leptomisch...

Aspidistra thuongiana is described and illustrated as a new species from the South Central Coast region of Vietnam. The new species has bright yellow flower and a slender pistil with a minute stigma. It is morphologically close to A. longipedunculata, but differs in shorter peduncle, bowl-shaped (vs. campanulate) perigone, shorter ovate (vs. oblong...

Heterotrophic plants provide intriguing examples of reductive evolution. This is especially evident in the reduction of their plastid genomes, which can potentially proceed toward complete genome loss. Several milestones at the beginning of this path of degradation have been described; however, little is known about the latest stages of plastome re...

Thismia is characterized by an exceptionally complicated floral morphology that is currently not understood properly. In the taxonomic literature, descriptive rather than morphological terms are often applied to parts of the flower in Thismia, relating to the general appearance of the floral organs instead of their precise homologies. Precise under...

Please note second author: HUNG NGUYEN VIET Should read: HUNG NGUYEN DUY

Ardisia daklakensis C.M. Hu & Nuraliev sp. nov. (Primulaceae) collected from lower montane forest of Chu Yang Sin National Park in Dak Lak Province, Vietnam, is described and illustrated. It is assigned to the A. subg. Crispardisia Mez, and a key to related species is provided.

We report three species from the family Asteraceae found in Hoang Lien National Park representing new records for Vietnam. Erigeron lilacinus is a new combination that we publish to accommodate the taxon earlier known as Erigeron annuus subsp. lilacinus at species rank. It is a widely distributed weed that, however, has not been reported for Asia u...

The present study reports newly recorded species of vascular plants for the flora of Vietnam found in the recently established Bat Xat Nature Reserve in Lao Cai province, close to the border with Yunnan province of China. Thirteen species belonging to eleven families are reported: Acanthaceae (Strobilanthes helicta), Actinidiaceae (Actinidia mellia...

The monocot family Triuridaceae is a morphological misfit with respect to several traits of floral morphology, including the uniformly apocarpous polymerous gynoecium and the famous inside-out flowers of Lacandonia. Although Triuridaceae are crucially important for understanding the floral evolution of Pandanales and angiosperms in general, signifi...

Primula gracilituba sp. nov. (Primulaceae) collected from montane forest of Bat Xat Nature Reserve in Lao Cai Province of northwestern Vietnam is described and illustrated. The distinguishing characters from the respectively nearest relatives are discussed.

The paper presents new data on the orchid diversity in Vietnam obtained in 2016-2020. It contains descriptions of one genus (Apetalanthe) and two species new to science (Apetalanthe gracilis, Nervilia appressifolia), as well as one genus (Neottianthe) and four species (Calanthe tricarinata, Collabium yunnanense, Dendrobium praecinctum, Neottianthe...

The plant family Balanophoraceae consists entirely of species that have lost the ability to photosynthesize. Instead, they obtain nutrients by parasitizing other plants. Recent studies have shown that plastid genomes of Balanophoraceae have a number of interesting features, one of the most prominent of those being a tremendous AT content close to 9...

The genus Octarrhena (Orchidaceae) is distributed predominantly in Malesia and Papuasia. Its presence in eastern Indochina was uncovered as recently as in 2015 simultaneously with a description of O. minuscula from the Central Highlands of Vietnam. Here, we describe two more species of the genus, O. emarginata and O. perpusilla, also endemic to thi...

Deutzia glomeruliflora is reported from Lao Cai and Ha Giang provinces in Northern Vietnam, representing the first record of this species and the genus Deutzia in Vietnam and in the Indochinese region. Type material of this species is analyzed and lectotypification is provided; the specimen at P (P00709445) is designated as a lectotype. Patterns of...

An updated checklist of the family Lycopodiaceae in Vietnam is provided. The checklist is based on the most recent taxonomic delimitation of this family. It comprises three subfamilies, six genera and 20 species. Three species, Huperzia nanlingensis, Phlegmariurus henryi and Phlegmariurus tetrastichus, are reported from Vietnam for the first time,...

Tupistra nganii is described and illustrated as a new species from Ha Giang Province in northern Vietnam and Yunnan Province in southwestern China. The new species is most similar to T. muricata from Thailand and Laos, from which it differs by the greenish white or yellow perianth and longer exserted stamens. Additionally, Tupistra longispica is re...