Stories of Cabeceiras

Bryophytes are small plants whose life cycle depends heavily on moisture. Their diversity is not only green: there are different shapes, colours and textures. According to the scientific presentation from Serralves, they contribute to nutrient recycling and can colonise surfaces where other plants cannot yet establish themselves, helping soil form. Learning about this group brings new questions to a walk, without needing to pull up specimens.

Mosses have no true roots. Kew describes rhizoids as small filaments whose main role is anchoring the plant to rock, bark or soil. Absorbent surfaces help take up water and minerals from the surroundings. Contact with moisture is therefore part of how they live.

They do not produce flowers either: they reproduce through spores. Spaces between the small plants help retain water, keeping the soil and nearby surroundings moist. These carpets can also shelter small animals.

This does not mean all mosses need the same conditions. Species are adapted to very different environments, and some survive dry periods in a dormant state. A green patch on a wall is not enough to identify a species or explain its whole life cycle.

Visit Cabeceiras includes Drosera rotundifolia in the mountain flora. Flora-On describes its habitat as waterlogged meadows, marshes and peat bogs with Sphagnum mosses, generally in mountain areas. The reference concerns Cabreira as a whole; it does not identify an observation point in this guide.

A review by the US Forest Service helps explain this connection with water: it describes continuously moist conditions and soils that are often acidic and poor in nutrients. The plant tolerates prolonged dry spells poorly. This explanation concerns the species in general, rather than measurements of soil or water in Cabreira.

The Pedro Andrade record of 31 January 2025, shows Lobarina scrobiculata in Abadim, according to the crossing of the published point with CAOP2025. Light lobes and surface depressions stand out among green mosses.

The ITALIC portal of the University of Trieste describes a foliaceous stalk and an association with cyanobacteria of the genus Nostoc. The leafy appearance does not make it a plant: this lichen results from an association between partners.

The source describes color differences between the dry and wet stalk. An isolated image does not show this change over time. It is worth comparing visible shapes and reliefs without watering or removing the lichen to try.

The description of ITALIC places the species in ancient caducifoli trees and rocks with mosses, in wet and open forests. It also refers to a reproduction mainly asexual, through sorédios. They are general characteristics of the species; the record of Abadim documents the published photography and location, not a study of all these processes on site.

The wide, rounded lobes contrast with the lichen Lasallia pustulata, also photographed in Abadim. Compare the two helps to realize that having a leafy appearance does not mean having the same shape or the same fixation mode.

In a lichen, a fungus is associated with an algae or cyanobacteria capable of photosynthesis. The photosynthetic partner provides nutrients; the fungus helps protect it from dryness and radiation.

The University of Évora describes crusty, leafy and fruity forms, among others. It is a new way of repairing surfaces and textures without confusing a color with an identification. This reading explains the biology of lichens; it does not constitute an inventory of species confirmed in Cabeceiras.

Reproduction can also transport the partnership: lichen fragments can disperse the two partners together. The fungus spores need to find a photosynthetic partner to form a new lichen.

The shapes may remember a crust, cut leaves or small shrubs. They are words to describe the appearance, with limits that are not always rigid. The lichens are also not moss: these are plants, while the lichens are classified with fungi.

Support also deserves attention: lichens can grow on rocks, shells, soil and artificial surfaces. The University of Évora explains that identification crosses the look with the substrate and habitat; sometimes requires microscopy or other specialized methods. A photograph can record the encounter without solving the name.

Another facet is the study of air. Lichens can accumulate compounds from the atmosphere and are used as bioindicators or biomonitors. The presence of a spot on a wall does not allow, by itself, to classify the air quality of a village. This conclusion requires an appropriate study, as the evaluation of a river combines different observations.

In the photograph of Pedro Andrade, of 31 January 2025, a brown-gray lichen has rounded protrusions over rock. The record is identified as Lasallia pustulata and located in Abadim by crossing the public point with CAOP2025.

The University of Évora describes this species as Saxon, that is, linked to rocks. The stem is umbilicalized: it is attached to the support only by the central zone. The protrusions of the upper face are another detail described by the source.

The photograph allows you to observe the relief, but does not show the fixture point hidden below. Compare what you see with what the description explains is a way to learn without lifting or highlighting the lichen.

The record of Évora describes a single wolf, which can reach ten centimeters, and small structures branched on the margins, the isids. The surface can present a whitish coating, called pruin. Edge, margin and relief are three different observations; no measurements of the photograph should be estimated without a known scale.