Language: English with bilingual summary in English and Spanish
In part 20 the Ecuadorian members of the Ephedraceae are revised. The sole genus, Ephedra, is represented in the country by two species. Specimen citations and illustrations are given. In part 68 only the genus Drosera, with one species, has been recorded from Ecuador. In part 90 the Ecuadorian members of the Zygophyllaceae are revised. Two genera occur in the country. Kalistroemia (2 spp.) and Tribulus (2 spp.).