Three new orchid species from the genus Pleurothallis have been discovered in the cloud forests of Costa Rica and western ...

Shrubs or trees up to 10 m tall; stem with brown fissured rhytidome; yellow exudate after cutting, expelled slowly in drops, sticky texture; pink sapwood and yellow heartwood. Branches cylindrical, ...

Oxalis comprises ca. 500 species and has a tropical and subtropical distribution. This genus contains four subgenera and Oxalis subg. Thamnoxys is the most diverse in Brazil. This subgenus has 9 ...