Lankesteriana

The first wild record of Bulbophyllum lemniscatoides confirms its occurrence in the Philippine Archipelago with notes on its habitat and conservation status

Abstract Bulbophyllum lemniscatoides Rolfe is a species native to Peninsular Malaysia, Thailand, Laos, Cambodia, Vietnam, Sumatra, Java, and Borneo. It was recently collected in Mt. Timolan Protected Landscape of Zamboanga del Sur, confirming its occurrence in the Philippine archipelago. Here, we provide species descriptions based on our collected material and photographs to aid identification, geographical distribution information, habitat, phenology, and an IUCN conservation assessment.

Four new species of Lepanthes (Pleurothallidinae) from the Southwestern Andes in Colombia

Abstract Four new species of Lepanthes from the southwestern Andes of Colombia are described, illustrated, and compared with morphologically similar species. The new species were found in San José del Salado, the Municipality of Dagua, Department of Valle del Cauca where several new species have been found and described in the past years.

Resumen Se describen, ilustran y comparan cuatro nuevas especies de Lepanthes del suroeste de los Andes occidentales de Colombia con especies morfológicamente similares. Las nuevas especies fueron encontradas en el Municipio de Dagua, en San José del Salado, Valle del Cauca donde se han encontrado y descrito varias especies nuevas en los últimos años.

Pleurothallis ariana-dayanae, a new species in subsection Macrophyllae-Fasciculatae (Pleurothallidinae) from the Cordillera del Cóndor, Ecuador

Abstract A new species of Pleurothallis from the Cordillera del Cóndor in southeast Ecuador is described and illustrated. In addition, information concerning its distribution, habitat, and phenology is provided. Pleurothallis ariana-dayanae is similar to P. paquishae but differs in the size of the flower, the dorsal sepal 6.5-7.8 mm long, the petals slightly falcate, linear, microscopically verrucose-papillose on the dorsal surface, minutely denticulate along the margins; the lip is ovate-elliptic with, denticulate-ciliate margins, with a slightly bilobed glenion. Pleurothallis ariana-dayanae is also compared with P. scabrilinguis, and P. applanata, an endemic species to Ecuador.

Resumen Se describe e ilustra una nueva especie de Pleurothallis de la Cordillera del Cóndor en el sureste de Ecuador. Adicionalmente, se proporciona información sobre la distribución, el hábitat y la fenología de esta especie. Pleurothallis ariana-dayanae es similar a P. paquishae pero difieren en el tamaño de la flor, el sépalo dorsal de 6.5-7.0 mm de largo, los pétalos levemente falcados, lineares, microscópicamente verrugoso-papiloso en la superficie dorsal, diminutamente denticulados en los márgenes; el labelo aovado-elíptico, con los márgenes denticulados-ciliados y el glenion levemente bilobulado. Pleurothallis ariana-dayanae también se compara con P. scabrilinguis, y P. applanata, una especie endémica del Ecuador.

A new small-flowered Cyrtochilum (Oncidiinae) from Peru

Abstract A new small-flowered Cyrtochilum from Peru is described, illustrated with photos and drawings, and compared to similar species. The new species is similar to C. fidicularium and C. gracile in having extra thumb-like projections above the rounded ventral lobes of the column but differs from C. fidicularium by the more sharply pointed and forward projecting callus keels on the lip and by a longer front-lobe of the lip, versus blunt and downward directed lobes in C. fidicularium. The new species differs readily from Cyrtochilum gracile by the long and wiry inflorescence, versus a more sub-erect and straighter panicle in C. gracile.

A new early-flowering spotted Chiloschista (Aeridinae) from Bhutan

Abstract A new species of Chiloschista from a restricted area in Bhutan is described and illustrated. It is featured with color photos and a map showing its only known locality. The new species is compared with the other three spotted Chiloschista species from Bhutan: C. densiflora, C. gelephuense, and C. himalaica, which have similarly colored flowers, but different lip structure and the differences are explained and illustrated.

The discovery of Scaphyglottis punctulata (Laeliinae) in the highlands of Brazilian Amazonia with a key to the species of the region

Abstract The genus Scaphyglottis Poepp. & Endl. presents 78 species and occurs from Mexico to Brazil. Scaphyglottis punctulata (Rchb.f.) C.Schweinf. is known from various high elevation locations from Panama to Bolivia. Here, we report new records in two regions of the Brazil portion of the Guiana Shield. We provide a detailed description, photographic plates, updated distribution map, ecological and taxonomic comments for S. punctulata, and an identification key for Scaphyglottis species from the Brazilian portion of the Guiana Shield.

A new large-flowered Cyrtochilum (Oncidiinae) from Colombia, named in honor of an esteemed taxonomist

Abstract A new and previously little-known Cyrtochilum (Orchidaceae: Oncidiinae), is named in honor and in memory of Leonore Bockemühl, who published a monographic treatment of Odontoglossum in 1989, which included many species that subsequently were transferred to Cyrtochilum based on molecular evidence. One of these species that was included in her treatment as ''Odontoglossum leucopterum'' is in fact an undescribed Cyr- tochilum and is described here. The real ''Odontoglossum leucopterum'', which was transferred to Cyrtochilum in 2001, has proven to be quite elusive since its original description. It was only recently photographed in the Sierra Nevada de Santa Marta in northern Colombia, its only known location, and photos of this rare orchid are featured here for the first time. The new Cyrtochilum is described, illustrated and compared with closely related Cyrtochilum species which are featured with line drawings and color photographs to illustrate the differences.

A new species of Epidendrum (Orchidaceae) from the Central Andes of Antioquia, Colombia

Abstract. The new species, Epidendrum sonsonense, was discovered while determining the herbarium specimens housed in the herbarium of Fundación Jardín Botánico Joaquin Antonio Uribe, JAUM. The species belongs to the informal Macrostachyum group and is endemic to the Paramo of Sonsón, Department of Antioquia, Colombia, characterized by the thickened stems, densely many-flowered raceme, and creamy-yellow flowers. A Lankester Composite Digital Plate (LCDP) of fresh material collected at the type locality is presented here. Studying additional collections at Colombian herbaria produced additional specimens of the same species.

Resumen. La nueva especie, Epidendrum sonsonense, fue descubierta durante la determinación de los especímenes depositados en el herbario de la Fundación Jardín Botánico Joaquin Antonio Uribe, JAUM. La especie pertenece al grupo informal Macrostachyum, y aparentemente es endémica del páramo de Sonsón, departamento de Antioquia, Colombia, se caracteriza por sus tallos engrosados, el racimo densamente plurifloro, y las flores crema-amarillas; se presenta aquí una Lámina Digital Compuesta estilo Lankester (LCDP) de material fresco recolectado en la localidad tipo. El estudio de colecciones adicionales en herbarios colombianos produjo especímenes adicionales de la misma especie.

Thrixspermum obyrneanum (Aeridinae), a new species from Peninsular Thailand and Malaysia

Abstract Thrixspermum obyrneanum (sect. Thrixspermum) is a new species described from Narathiwat Province, southern Thailand, and from Kelantan, Peninsular Malaysia. It is morphologically similar to T. leucarachne but differs in the much shorter sepals and petals, tepals and lip pale yellow, lateral lobes of the lip 6-7 mm long, broadly triangular to ovate, with narrowly truncate and erose apex, mid-lobe 3.0-4.7 mm long, cylindrical to broadly triangular, obtuse.