Although pollination networks between plants and flower visitors are diverse and flexible, seed production of many plant species is restricted by pollen limitation. Obligate outcrossers often suffer from low pollinator activity or severe interspecific competition for pollinator acquisition among co‐flowering species. This study focused on seasonal changes in plant–flower visitor linkages in an alpine

Biodeterioration, the alteration caused by living organisms, on historical buildings and stone monuments is a well‐known problem affecting two‐thirds of the world's cultural heritage. The study of the flora growing on wall surface is of particular importance for the assessment of the risk of biodeterioration of stone artifacts by vascular plants, and for maintenance planning. In this study, we investigate

We compared the anatomical characteristics of vegetative organs, peduncle and mycorrhizal morphology of the two known species of Sirhookera (Epidendroideae, Orchidaceae) to identify anatomical markers for identification and the ecological adaptations of these species. The leaves are hypostomatic bearing tetracytic stomata and the walls of subsidiary cells are smooth in Sirhookera lanceolata and undulate

The ability for vegetative growth and development of generative organs often reflects an adaptation to the environment and may be a suitable proxy for understanding population dynamics of rare relict species. An example of such a plant is Carex lachenalii Schkuhr, an arctic‐alpine species, in the temperate zone of Europe only occurring in isolated localities of high‐elevation mountain ranges. We aimed

Driftwood is woody debris that is floating on the sea or brought onto the shore by the sea. It can have a natural origin but often it originates from human activities. Driftwood has a significant ecological role as a microhabitat for a large range of species. Dead‐wood‐associated aphyllophoroid fungi on driftwood have been studied rather little globally, and there are hardly any studies conducted in

A new species of Annonaceae endemic to Mexico is described and illustrated. Desmopsis dubia sp. nov. is placed within the Desmopsis–Stenanona clade and is clearly different from all other species of Neotropical Miliuseae by the combination of lower surface of leaves pubescent; tertiary venation strongly percurrent; leafy bracts absent at the base of the pedicels; sepals connate at the base and persistent

The present study provides a comprehensive analysis of the wood microstructure of 16 species of the genus Quercus (Fagaceae) inhabiting the Himalayan region of India. Indian oaks can be categorised into two groups: ring porous oaks and diffuse porous oaks. Most of the diffuse porous oaks were quite homogenous in their microstructure and showed only slight variations in ray cellular composition and

Begonia mengdongensis, a new species in Begonia sect. Reichenheimia (Begoniaceae) from Malipo County (SE Yunnan, China), is described and fully illustrated. Begonia mengdongensis is similar to B. fimbristipula and B. poilanei. The new species can be distinguished from other similar species by its leaf margin being dentate or crenate, flowers white, male flower pedicel puberulous, and placentae undivided

Examination of relevant type materials and living plants has revealed that Rungia axilliflora, R. densiflora and R. evrardii are conspecific with R. stolonifera. A lectotype is designated for the name R. stolonifera. Rungia sect. Stoloniferae is thus recognised as including two species, viz. R. stolonifera and R. mina.

Viola umphangensis S. Nansai, Srisanga & Suwanph., a new species from Thailand, is described and illustrated. Morphological, anatomical and palynological characters of V. umphangensis are compared with a similar species, V. betonicifolia Sm. An amended key to the Viola species in the Flora of Thailand account is provided.

A new species of Impatiens L. from Hubei, China, Impatiens zhuxiensis Q.L. Gan & X.W. Li, is described and illustrated. Impatiens zhuxiensis resembles I. nasuta Hook. f. and I. compta Hook. f. and these are the only species in I. sect. Impatiens with a long abaxial rostrum on the midvein of the dorsal petal. However, the flowers of I. zhuxiensis are yellow while those of I. nasuta and I. compta are

A new species, Cryptocoryne tirtadinatae, from the Schwaner mountains West Kalimantan, Indonesia is described and illustrated. It differs significantly from all other Cryptocoryne species by the short leathery leaves, with the leaf blades shining green–purple pinkish with green markings on the upper surface, and the short spathe with a reddish limb and red spotted tube opening. The chromosome number

A new species of Epidendrum, E. cusiyacoense, is described and illustrated based on Colombian material. The novelty belongs to the ‘Garayi subgroup’ and resembles the Ecuadorian endemic E. ilinizae, but is distinguished by the oblong‐lanceolate leaf which is over five times longer than wide, 2‐flowered inflorescence and entire, papillate lip margins. Epidendrum cusiyacoense is so far exclusively known

A new species of Salacia is described from Karnataka and Kerala states of the Western Ghats, India. It is unique within the genus on account of its obliquely dehiscing anthers and 7–10 cm long, prolate to broadly ellipsoid or ovoid, keeled, greenish‐yellow 5‐ to 8‐seeded fruit with thin epicarp and dry mesocarp. Salacia megacarpa sp. nov. can be grouped with S. fruticosa Heyne ex M.A.Lawson and S.

Examination of type specimens has shown that Primula subansirica G.D. Pal is a Gesneriad and conspecific with Beccarinda cordifolia (Anthony) B.L. Burtt (Gesneriaceae), thus a reduction is made and a new synonymy is proposed.

Taxonomic studies in Brazilian Inuleae (Asteraceae) have revealed that the name Pterocaulon rugosum (Cass.) Malme has been misapplied because its type belongs to the same species that is currently recognized as Pterocaulon alopecuroides (Lam.) DC. Additionally, several works supposed that Pterocaulon rugosum (Cass.) Malme was based on Conyza rugosa Vahl, which is illegitimate, because it is predated