3. Producción

Browse

Search Results

Now showing 1 - 6 of 6
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Masdevallia bastantei (Orchidaceae), a new species from Machupicchu, Peru
    (American Society of Plant Taxonomists Inc., 2021-07-01)
    Machupicchu Historical Sanctuary is a natural protected area that bears a considerable orchid diversity. Masdevallia is one of the most common, showiest, and distinctive genera among Machupicchu orchids, where six species are currently known. Here, we describe a new species of Masdevallia from Machupicchu, which we name Masdevallia bastantei. The species is similar to M. karineae but differs in the long flowers of 12 to 17 cm in length and a campanulate, incanous, maculate sepaline tube. We provide a description and illustrations of this new species. Furthermore, we present pictures and a key including all Masdevallia species that occur within the Machupicchu Historical Sanctuary.
  • Some of the metrics are blocked by your 
    Item type:Publication,
    A monograph of the genus Polylepis (Rosaceae)
    (Pensoft Publishers, 2022-01-01)
    We present a monograph of the high Andean tree genus Polylepis (Rosaceae), based on a species concept considering morphological, climatic and biogeographic distinctness as indicators of evolutionary independence. In total, we recognize 45 species of Polylepis , grouped in five sections. Polylepis sect. Sericeae is represented by 15 species in four subsections, P. sect. Reticulatae by seven species, P. sect. Subsericantes by three species, P. sect. Australes by two species and P. sect. Incanaee by three subsections with 18 species. We describe seven new species, one from Colombia ( P. frontinensis ), one from Ecuador ( P. simpsoniae ) and five from Peru ( P. acomayensis , P. fjeldsaoi , P. occidentalis , P. pilosissima and P. sacra ). Three species from Peru ( P. albicans , P. pallidistigma and P. serrata ) are re-instated as valid species. Two taxa from Bolivia ( P. incanoides and P. nana ) are elevated from subspecies to species rank. The morphology, habitat, distribution, ecology and conservation status of each species are documented. We also provide an identification key to the species of the genus and general introductions on taxonomic history, morphology, evolution, ecology and conservation.
  • Some of the metrics are blocked by your 
    Item type:Publication,
    A new species of Telipogon (Oncidiinae) from Bolivia
    (Jardin Botanico Lankester, 2024-01-01)
    Telipogon minutus, from the Carrasco National Park in the Bolivian Yungas, is proposed as a ne species. Plants of T. minutus, which reach up to 4 cm in height, are the smallest known Bolivian Telipogon. The new species is characterized by its oblong to ovate labellum, which is weakly sub-auriculate and retuse at the base, with a semi-circular stigma, a column with two lateral lobes and a mammillary protuberance at the apex, and two tufts of setae with trifurcate apices. A description, figures, and a distributional map of the new taxon are provided, along with a discussion of the differences between the new species and morphologically similar Telipogon species.
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Telipogon villonacoensis (Orchidaceae: Oncidiinae), a new species with an unexpectedly wide distribution from the northern and central Andes of South America
    (Meise Botanic Garden, 2025-01-01)
    Background and aims – Telipogon is an orchid genus with a main diversity centre located in the tropical Andes. Some small-flowered Telipogon species, formerly classified under Stellilabium , remain poorly known. During recent fieldwork in southern Ecuador, an undetermined species of a miniature Telipogon was recorded and collected. We aimed to taxonomically identify the orchid and understand its phylogenetic relationships. Material and methods – We conducted field work in diverse parts of Ecuador and Peru, revised material deposited at various herbaria, and records available on iNaturalist. Furthermore, we extracted, amplified, and sequenced DNA sequences to evaluate the phylogenetic position of the undetermined species. Key results – The unidentified species turned out to be an undescribed Telipogon species, which we describe and name here as T. villonacoensis . It has also been recorded in Colombia and Peru, an unusually wide distribution for a Telipogon species. Telipogon villonacoensis is distinguished by its pale green to yellow flowers, the elliptic petals and lip, minute lobes and red coloration at its basal third. This species appears to have a patchy distribution and specialized habitat preferences, growing as an epiphyte in montane shrublands and forests. Although fewer than 200 individuals have been documented so far, and its habitats face ongoing threats, our conservation assessment indicates the species could be classified as not threatened. Phylogenetic analyses resulted in a well-resolved tree, in which T. villonacoensis is placed within the clade of the South American miniature Telipogon and sister to, but genetically distinct from, T. pogonostalix , though it is morphologically more similar to T. alexii , a species placed in another subclade of South American miniature Telipogon . Conclusion – Our results highlight the underestimated diversity and distribution range of miniature Telipogon and underscore the need for continued collaborative exploration and conservation in Andean ecosystems. These findings will contribute to a better understanding of orchid diversity and evolution of Telipogon species.
      3
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Morphological and genetic evidence support the reinstatement of the long-forgotten Telipogon teuscheri (Orchidaceae, Oncidiinae) from southwestern Ecuador
    (Pensoft Publishers, 2026-01-01)
    Telipogon teuscheri , a rare orchid species from southwestern Ecuador, was described by Garay in 1958, but has long been forgotten after being placed in synonymy with T. tesselatus by Dodson in 1989. Revision of type material, herbarium specimens, field observations, and collecting itineraries, along with genetic analyses, has revealed that T. teuscheri is morphologically and genetically distinct from T. tesselatus . Furthermore, our revision of herbarium material and iconography indicates that T. isabelae , described by Dodson in 2004, is conspecific with T. teuscheri and should be treated as a synonym, thereby resolving a long-standing taxonomic confusion. We present a detailed morphological description, illustrations, a distribution map, the phylogenetic position, and notes on habitat, phenology, and conservation status of T. teuscheri .
  • Some of the metrics are blocked by your 
    Item type:Publication,
    A Taxonomy for Pre-Hispanic Stone Walls in Southern Peru
    (Taylor & Francis, 2025-01-01)
    Due to Peru's outstanding historical and cultural diversity, various pre-Hispanic stone constructions exist. These structures date from the Lithic period (10000 BCE) to the fall of the Inca Empire (1532 CE). Because of environmental conditions and time, these buildings have deteriorated and, in some cases, collapsed. Unfortunately, information about these structures is limited, such as their construction process or structural behaviour. This research proposes a structural classification for southern Peru pre-Hispanic Stone Walls, based on information collected during field visits to different archaeological sites in the regions of Puno and Cusco, Peru. In this taxonomy, eight parameters were considered: the time of construction, the use of the structure, the current height, the leaves and arrangement of the walls, the type of joint, the size of the stones, and the finish of the stones. The classification of the existing typologies was carried out in nineteen stone archaeological sites. This database contributes to the development of the classification of the different stone constructions in Peru, with common criteria for future taxonomic studies of the existing construction typologies.
      4