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Many climbing Aroids can be easily taken into cultivation by making a stem cutting. We do that sometimes when finding sterile specimens during floristic surveys, and make herbarium vouchers later when the inflorescences appear. However, one has to be patient ... This Syngonium from the inundated forest along the Caeté river in the coastal Amazon region was collected in 2018 and started flowering now.
#BragancaPA #herbarium #HBRA #Amazonas #Araceae #Syngonium #floodedForest

The spadix (inflorescence) of Syngonium sp. with three different types of sessile flowers: yellowish pistillate (female) flowers on the lower portion, then white sterile and fertile staminate (male) flowers. The lower, sheathing part of the spathe is held open by the fingers of the photographer

The inflorescence (spadix) of Syngonium sp., the lower portion being covered by a whitish-green sheathing bract (spathe). The upper part of the spathe has opened and the white spadix is visible

Syngonium sp., an aroid climber, on spiny palm stems (Astrocaryum). The compound, trifoliolate leaves have long petioles

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Just coming back from the INCT Herbário Virtual da Flora e dos Fungos meeting in Recife. This INCT (National Science and Technology Institute) unites Brazilian and international herbaria+fungi collections collaborating over many years on the creation of a virtual herbarium open to the public. Amazing integration of the many regional, small to medium sized herbaria in the country!

https://specieslink.net/search

#herbarium #Brazil #botany #HBRA

INCT Herbário Virtual da Flora e dos Fungos meeting in Recife, Brazil. A room with a sitting audience listening to the opening statement of Prof. Dr. Leonor Maia, project leader.

Another plant of the Amazon coast seasonal freshwater wetlands: Sagittaria rhombifolia Cham. Its long, narrow leaves can be easily mistaken for those of a sedge from a distance, but the white, showy flowers clearly indicate that it is not. I collected this plant for our herbarium – there are two older records (1955, 1977) from the same region in other collections, and I'm glad that the plants are still thriving here.
#Amazonas #Alismataceae #botany #herbarium #HBRA #BragançaPA #wetlands

Herbarium sheet with Sagittaria rhombifolia. The long leaves and inflorescences are folded to fit on the A3-sized paper; there are a colour key and a centimeter scale for reference, as well as a label with collection data and an envelope for loose material (like seeds; put next to the plant for making the photograph)

Apex of the inflorescence and flowers of Sagittaria rhombifolia in the natural habitat. The petals are mostly white, with a greenish-yellow base, the anthers of the stamens are bright yellow. The flowers are close to the water surface, among leaves of a grass and submerse as well as floating Cabomba leaves

Picture of the freshly collected Sagittaria rhombifolia plant, lying on reddish-brown soil, next to a field notebook with a centimeter scale and a pencil. The long, narrow leaves are about 70 cm long; the inflorescences with the white flowers are slightly shorter

White flowers and leaves of Sagittaria rhombifolia in the natural habitat, a flooded wetland near Bragança-PA, Brazilian Amazon coast. There are several other aquatic plants (e. g., Cabomba aquatica with tiny yellow flowers and divided submerse leaves)

The aquatic plant Bacopa reflexa (Benth.) Edwall (Plantaginaceae) is sometimes considered the only species of genus Benjaminia, due to its submerse, finely divided leaves and calyx characteristics. In our region of the Amazon coast it had already had been collected almost 70 years ago, and we were able to confirm that it is still around in ponds and flooded seasonal marshland near Bragança-Pará.
#Plantaginaceae #aquaticPlants #marshland #Amazonas #botany #flower #herbarium #HBRA #BragancaPA

Herbarium sheet with Bacopa reflexa. The green stems with the verticillate, finely divided leaves were floated onto the paper to keep them spread out before drying. The herbarium sheet features labels with collection data and a barcode. A colour target and a centimetre scale were included in the picture for reference

The small flower of Bacopa reflexa, a few millimeters above the water surface. The reflection of the flower's underside is visible on the surface; the finely divided, submerse leaves can be seen below and to the right of the flower (there are also leaves of other aquatic plants). The zygomorphic corola is light blue, with a yellow center.

The neotropical genus Cecropia generally features pioneer tree species (photos: C. palmata Willd.). In regions where most of the natural vegetation has been removed, like in the coastal region south of the Amazon mouth, they are ubiquitous. Most species of the genus are myrmecophytic, with ant colonies in their hollow stem centers and ant-nurturing patches at the petiole bases. I collected flowering material from this tree for #HBRA.
#Urticaceae #Amazonas #ants #deforestation #herbarium #botany

Herbarium sheet with collection of a dried Cecropia palmata shoot. The large lobed leaves are folded to fit on the page; the inflorescences are still enclosed in spathes with whitish indument

Detail of male inflorescence of Cecropia palmata. The male flowers completely cover the cylindrical spike, with cream-coloured anthers exposed in many flowers

freshly collected Cecropia palmata shoots. The stems are cut in halve, exposing the hollow chambers occupied by ants in their centres. The large, lobed leaves are dark green above and have a whitish green colour on the abaxial side. The inflorescences are mostly still enclosed in spathes with indument of white hairs

Whitish patch of hairs (trichilium) of Cecropia palmata at the abaxial side of the base of a young leaf's petiole, with a couple o ants interested in the Müllerian bodies produced by the plant to nurture the insects

Myrtaceae in the Amazon region are often difficult to identify to species. This small tree from the dune forests of the Amazon coast is possibly Eugenia protenta McVaugh. Quite important to document these collections in herbaria … If you'd like to have a look, our collection (HBRA) publishes data and photos of herbarium sheets on platforms like SpeciesLink : https://specieslink.net/search/
#Amazonas #forest #Myrtaceae #dunes #herbarium #HBRA #speciesLink #UFPA #IECOS

Small yellow fruits with dark spots on bare branchlets of Eugenia cf. protenta

Abundant small flowers of Eugenia cf. protenta with white, rounded sepals, white petals and numerous white stamens an a branchlet with two dark green leaf bases

From today's canoe trip through the inundated forests of the Caeté river floodplain -- this liana is actually a gymnosperm (should be Gnetum venosum Spruce ex Benth.). We collected this specimen for our herbarium at the University of Pará (UFPA) in Bragança (HBRA).
#Amazonas #Caeté #BragançaPA #Gnetaceae #lianas #wetlands #floodplain #forests #herbarium #HBRA #UFPA

#hbra

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