Two new species and a new combination in Protium (Burseraceae) from Costa Rica

Abstract

Two new species of Protium (Burseraceae) are described and illustrated: Protium aguilarii sp. nov., from the Pacific slope of the Osa Peninsula, Puntarenas Province, Costa Rica; and Protium hammelii sp. nov., from wet forests on the Caribbean slopes of Nicaragua and Costa Rica. In addition, Protium brenesii comb. nov., is proposed as a new combination based on Trichilia brenesii, a name that was based on a specimen collected with flowers in the mountains near San Ramón, Alajuela Province, Costa Rica. It is compared with Protium costaricense, a similar species with which it has been confused for more than 90 years. Finally, illustrations and specimen citations are provided for all the aforementioned taxa, and some others with which they have been confused.

Flora das cangas da Serra dos Carajás, Pará, Brasil: Burseraceae

“…O pistilo e o disco são sempre distintos, porém uma parte rudimentar do ovário pode ficar inteiramente embebida pelo disco, tendo sua base confluente com o mesmo, formando uma estrutura denominada ovario-disco. O fruto é do tipo drupa, de forma variável (ovoide-oblíquo, subgloboso ou elipsoide) (Daly 2011;Santamaría-Aguilar & Lagomarsino 2017).…”

“…O gênero possui aproximadamente 200 espécies (Daly 2017, comunicação pessoal), com distribuição pantropical (Santamaría-Aguilar & Lagomarsino 2017). No Brasil são referidas 68 espécies, não havendo registro para os estados do Rio Grande do Norte e Rio Grande Sul (BFG 2015).…”

Flora of Rio de Janeiro: Protium Burm. f. (Burseraceae)

“…The flowers are actinomorphic, clustered in paniculate inflorescences. The fruits are drupe type of different shapes (Daly et al 2011;Santamaría-Aguilar & Lagomarsino 2017). Protium species are rich in exudates and oleoresins, whose volatile substances are used in the manufacture of perfumes, production of incense and tea (Siani et al 2004).…”