A new Lepanthes (Pleurothallidinae) from South-western Colombia

A new species of Lepanthes from southwestern Colombia is presented here. Lepanthes farallonensis belongs to the informal group “manabina”, which comprises species with concave and commonly pubescent leaves, flowers resting at the adaxial side of the leaves, and the synsepal with short to long tails. Lepanthes farallonensis is similar to L. smaragdina in the broadly ovate dorsal sepal but differs in the conspicuously twisted upper lobes of the petals, outwardly bent and a depression at the center of the laminae of the lip.

Viability and infectivity of Ceratobasidium encapsulated in alginate beads under different storage conditions

Mycorrhizal fungi are important partners of orchids because they establish close symbiotic relationships with this group of plants, and its preservation is also important for the successful conservation of orchids. In the present study, the conservation of Ceratobasidium sp., a fungal symbiont, using encapsulation in alginate beads was tested over different times, temperatures of storage and dehydrated conditions. Osmotically dehydrated and air-dried beads were stored at room temperature (20 ± 2°C), 4°C, -20°C and - 80°C. The fungal growth was verified after 4, 8, 26 and 96 weeks. A second test was carried out to evaluate the encapsulations of fungi as a form of inoculation in Trichoceros antennifer orchid to promote symbiosis and plants development. The results show that the encapsulation of Ceratobasidium in alginate beads is a viable strategy for its conservation, the beads are of easy manipulation and promote plant growth when inoculated in plant substrate. These results may be adopted as part of effective conservation strategies for mycorrhizal fungi and orchids.

Bulbophyllum karbianglongensis (Orchidaceae, Epidendroideae), a new species from Assam, India

A new epiphytic Bulbophyllum belonging to section Cirrhopetaloides is described from tropical mixed evergreen forests of Karbi Anglong (Assam, India) with coloured photographs and line drawings. It is allied to the Bulbophyllum bicolor, B. venulosum and B. blaoense, but differs in the size and shape of pseudobulbs, the shape of the leaf blade, and flower size. A detailed description with corresponding color photos and information on the habitat is provided.

Two new species of Bulbophyllum (Orchidaceae) from Thailand

Two new species of Bulbophyllum (Orchidaceae) are described: B. sphenoglossum (sect. Lemniscata) and B. trigonanthum (sect. Reptantia). Both species occur in Thailand.

Notes on Australasian Orchidaceae 7: Updates on the nomenclature of Sullivania (Diurideae, subtribe Drakaeinae)

Sullivania F.Muell.(Orchidaceae) is recognised as a validly published genus having priority over Paracaleana Blaxell, and thirteen species (eleven described) in Paracaleana are here transferred to it.

Pityphyllum mercedes-abarcae (Maxillariinae) a new species from Euador

A new species of Pityphyllum from south-eastern Ecuador was found during an investigation of the orchids of the Cordillera del Cóndor. Pityphyllum mercedes-abarcae is described and illustrated. Information concerning its distribution, habitat, and phenology is provided. The new proposed taxon is morphologically similar to P. pinoides, from which it differs by the smaller plants, the spathulate petals with an erose margin in the middle third, lip flattened is square in the middle third, wedge in the basal third and acute in the apical third with two small parallel calluses in the apical third, presents a slight cell thickening in the abaxial part of the apical third and elongated trichomes below the stigma.

Explosive range expansion of Eulophia graminea (Orchidaceae) in Puerto Ricio and the West Indies

Eulophia graminea Lindley (Orchidaceae), a native orchid of tropical and subtropical Asia, was first reported in the Western Hemisphere from populations in Miami, Florida, U.S.A. where it spread rapidly through the southern part of the state. Here we report the first record of this species for Puerto Rico and sightings in the Bahamas and Cuba, reflecting the rapid spread seen in southern Florida (U.S.A).

Two new species of Andinia (Pleurothallidinae) from the Central Cordillera of Peru

Two new Andinia species are described, A. barba-caprina and A. crassipetala, both found during a botanical expedition to the montane forests of the Central Cordillera of the Peruvian Andes. They are compared with morphologically similar species, and Lankester Composite Dissection Plates (LCDP) are provided. Andinia barba-caprina is more similar to A. tingomariana but is distinguished by having obovate sepals with sparsely erose margins and the lip with narrowly obtuse, short basal lobes and a group of large hairs on the abaxial surface. Andinia crassipetala is distinguished from the two most similar species, A. hernandoi Est.Domínguez & S.Vieira-Uribe and A. persimilis (Luer & Sijm) Karremans & S.Vieira-Uribe for having thick, deltate and obtuse petals.

A new and previously misidentified species of Trisetella (Pleurothallidinae: Orchidaceae) from southeast Ecuador

Trisetella pachycaudata, a new species in the subtribe Pleurothallidinae, was discovered in the Zamora Chinchipe province of southeast Ecuador, and it is described here. Trisetella pachycaudata is compared with the most similar species (and others with which it has been confused in cultivation), T. triglochin, T. strumosa, and T. vittata. It differs from them in the flowers with a much thicker apex of the sepaline tails (the thickest in the genus), and the petals expanded at the labellar margin, with the cuspidate apices erose on the upper margin and entire at the lower margin. Key words / Palabras clave: Trisetella strumosa, Trisetella triglochin, Trisetella vittata, Zamora Chinchipe

Rudolf Schlechter's South-American orchids V. Schlechter's "network": Ecuador and Peru

The fifth chapter of the series about Rudolf Schlechter’s South-American orchids introduces us to those botanists and orchid collectors who travelled and worked in Ecuador and Peru and supplied Schlechter with many of the new orchid species he described. As in previous chapters, the biographies and accomplishments of these travellers are preceded by brief geographical and historical outlines for each of these countries. It is worth mentioning that the lives and orchids of such prominent figures in the orchidology of South America as F.C. Lehmann, W. Hennis, E. Bungeroth and E. Ule, who collected in Ecuador and Peru, have already been mentioned in previous chapters and are therefore omitted here. Keywords/Palabras clave: biography, biografía, history of botany, historia de la botánica, Orchidaceae For accessing the high-resolution PDF, please follow this link: https://n9.cl/836os