Microchilus

Abstract: Continuing studies of neotropical Goodyerinae has revealed that 11 transfers are required in the genera Aspidogyne (9) and Microchilus (2). Furthermore the descriptions of 31 new taxa are required in the genera Aspidogyne (3), Ligeophila (1), Microchilus (21 species, 2 subspecies, 2 varieties) and Platythelys (2). Extensions of distributional records are reported for 8 species. Ethnobotanical uses are recorded for 3 Ecuadorian species. Erythrodes cornejoi, E. serripetala and Ligeophila chinimensis are formally reduced to synonymy of Platythelys venustula, Aspidogyne bidentifera and Ligeophila juruenensis respectively. Illustrations are provided of 35 of the 54 taxa treated.

Abstract: Continuing studies of Neotropical Goodyerinae have revealed that three transfers are required in the genus Aspidogyne. Furthermore, the descriptions of 38 new taxa are required in the genera Aspidogyne (3), Kreodanthus (4), Ligeophila (one species, one variety), and Microchilus (28 species, one subspecies). The genus Rhamphorhynchus is considered to be congeneric with Aspidogyne. Microchilus glanduliferus is considered to be conspecific with M. campanulatus. Extensions of distribution are reported for three species. Illustrations are provided for 40 of the 45 taxa treated.

Abstract: Continuing studies of neotropical Goodyerinae reveal new distributional records for Aspidogyne umbraticola and Microchilus familiaris. The synonymy of Aspidogyne querceticola is elaborated upon. One new combination, Aspidogyne clavigera var. rhodostachys is proposed, as well as four new species of Microchilus, viz. M. boyacanus, M. callejasii, M. quetamensis, and M. schneidert. Physurus debilis and Spiranthes pedicellata are lectotypified.

Abstract: Based on the review of Colombian herbarium specimens and field work conducted, a first synoptical rewiew of the Spiranthoideae orchids from Colombia, with 32 genus and 200 species is presented. In the first part, a key for the identification of the tribes, subtribes and genus made in Colombia and a synopsis of the tribes Goodyereae (6 gen., 56 spp.) and Spirantheae, subtribes Prescottiinae (5 gen., 36 spp.) and Spiranthinae (5 gen., 11 spp.) is presented. The most diverse genus are Microchilus with 32 spp., Gomphichis with 17 and Ligeophila with 8. As a part of the researchs results, 31 new records are added to the known list of Colombian species, which belong to the genera Aspidogyne, Brachystele, Gomphichis, Kreodanthus, Ligeophila, Microchilus y 1 Universidad Surcolombiana, Av. Pastrana Borrero, Cra. 1a, Neiva hildugo@usco.edu.co / hildugo@yahoo.com 2 Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Apartado Aereo 7495, Bogota D. C. jlfernandeza@unal.edu.co 6 REV. ACAD. COLOMB. CIENC.: VOLUMEN XXXI, NUMERO 118-MARZO DE 2007 Plathytelys. In some cases there are species previously known only of the neighbouring countries and, in other cases, it makes reference to recently described taxa. The new combination Gomphichis huilaensis (Garay) H. Duenas & Fern. Alonso is propossed.