Flora of Espírito Santo: Psidium (Myrtaceae)

Abstract

This study presents a floristic-taxonomic treatment of Psidium in the state of Espírito Santo, and is a result of fieldwork combined with analyses of herbarium specimens. Fourteen species of the genus were recognized in Espírito Santo state (P. brownianum, P. cattleianum, P. cauliflorum, P. guajava, P. guineense, P. longipetiolatum, P. myrtoides, P. oblongatum, P. oligospermum, P. ovale, P. rhombeum, P. rufum P. sartorianum, and Psidium sp.), accounting for about 34% of the species richness estimated for the genus in the Atlantic Rainforest biome. The species occur predominantly in lowland forests up to 700 meters above sea level. These areas are highly threatened due to urbanization of coastal areas and agricultural expansion in the state Espírito Santo. Therefore, the conservation of Psidium species in this state requires the creation of more lowland protected areas.

Monoterpenes and Sesquiterpenes of Essential Oils from Psidium Species and Their Biological Properties

“…Flowers are solitary, axillary racemes, dichasium, panicle or inflorescence growing from auxotelic axis producing vegetative shoots with adult leaves after anthesis; floral buds pyriform, entire or constricted above the ovary, round or apiculate, calyx with lobes entirely or partially fused, tearing irregularly at anthesis, 4–5 lobed, pentamerous flowers; calyx cupuliform or calyptrate, petals free, numerous stamens; ovary inferior, with two to five locules and few to many ovules per locule on a peltate to the lamellate intrusive placenta. Fruits with many-seeded, seeds with a bony testa and a cochlear embryo with small cotyledons and a large hypocotyl [ 4 ].…”

Phenological follow-up of strawberry-guava in the Southeast Region of Paraná

“…Two red Strawberry-guava plants, over 15 years old and 30 yellow Strawberry-guava plants cultivar Ya-Cy, aged approximately seven years, were used, all materials of seminiferous origin. Taxonomic confirmation of the species Research, Society and Development, v. 9, n. 10, e8319109180, 2020 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v9i10.9180 was carried out following the key of Tuler et al (2017). The botanical material was collected and preceded with the identification of the details of leaves and flowers following the methodologies of Vidal & Vidal (2000) and Gonçalves (2011).…”

Typification and nomenclatural notes on Psidium cattleyanum (Myrtaceae)

“…Cattley (1821) stated his seeds orginated in China, and this is contradicted by the known native distribution of the species in the eastern coast of Brazil (Staggemeier & al., 2016;Landrum, 2017;Tuler & al., 2017). However, it remains unclear whether the species could have been transported to Asia from South America and cultivated in China prior to its description, as was the case for P. guajava L. (Merril, 1954).…”