Saxifragaceae are plants primarily in the northern hemisphere, from the Arctic to temperate zones. Interestingly, they are also found in the tropical mountains. The family's center of diversity is in eastern North America, east Asia and the Himalayas. They are generally perennial herbaceous with mostly basal and often succulent leaves. The flowers, although small, are numerous, and several species are cultivated as ornamental.
More than 60 plant families have succulents. But some of those are dominantly succulent, such as the Crassulaceae (lat. crassus = thick, fat) with thick, fleshy stems and leaves due to special water-storage tissues.
Guinea-Bissau is a small tropical country (2.5 times smaller than Portugal) more than 20% of its territory being occupied by water. Mangroves thrive along the coast and river banks. There are also areas of rice paddies, sub-humid and dry forests, and inland savannas. Here, grasses play an important role. Those grasses that develop in the salty areas, with soil saturated with salt, where few species can survive, are also of major ecological importance.
The wood of a leguminous tree native to the Brazilian Atlantic Forest (Paubrasilia echinata) was used early on for dyeing fabrics and became known in Europe as brazilwood. These lands, initially named Vera Cruz, became named after this plant, Brazil.
Fabaceae, or Leguminosae, is one of the families with the greatest diversity and it is the most diverse in Brazil. In this country there are c. 200 genera and 2800 species native belonging to this plant group with wide economic importance.
Can you help us to find out the missing information about these specimens?
Every record lacks some information, and in many cases, you must be a real detective to find out from the few clues the specimens contain!
There are c. 12 genera of carnivorous plants, but only four are found in Portugal, Drosera, Drosophyllum, Pinguicula, and Utricularia.
Get to know them by transcribing the information on the labels of herbarium specimens of the University of Coimbra.
Photo by Filipe Covelo
This project contains several specimens that, over the years of databasing the herbarium, for some reason, have not been completely transcribed.
Photo by Filipe Covelo
Moritz Willkomm (1821-1895) built a very important plant collection of c. 31.000 specimens, for a long time at the Herbarium of the University of Coimbra.
Most of the specimens have been databased.
We ask for your collaboration to finalise the project.
In the Atlantic, there are traces of an ancestral flora from a period when the planet was warmer. This flora, named Laurissilva (Laurel forest), is found in the archipelagos of the Azores, Madeira, the Canaries, and even Cape Verde. The largest collection of the Azorean flora is at the Herbarium of the University of Coimbra.
These specimens belong to the family Brassicaceae, also known as Cruciferae, a botanical family that includes cabbages and Arabidopsis thaliana, one of the most used species in genetic studies worldwide.