Tetragonia tetragonioides (Pall.) Kuntze (Aizoaceae) wurde erstmals vor etwa einem Jahrhundert, im Jahr 1923, von Ducellier & Maire außerhalb der Kulturflächen in der Nähe von Algier in Algerien berichtet, ohne jedoch den Fundort näher zu nennen. Der erste bestätigte Fundort dieser Art in Algerien wird nach Feldstudien gemeldet, die zwischen 2021 und 2024 in der Region Skikda im Nordosten Algeriens durchgeführt wurden. Diese Pflanze, die bisher als Adventivpflanze (= unbeständig?) galt und regelmäßig auf Brachland und in der Nähe von Gärten vorkam, wird hier zum ersten Mal als sich auf dem nordafrikanischen Festland einbürgernd festgestellt. Die zukünftige Ausbreitung und mögliche negative Auswirkungen der Art werden ebenfalls diskutiert.

São incluídas modificações na classificação de Cereeae-Cereinae, assim como extensões na distribuição geográfica de vários táxons, bem como novos mapas para alguns destes. São citados dois exemplos de espécies cuja distribuição conhecida aumentou através da antropização de habitats (Pilosocereus catingicola and P. brasiliensis). Evidências de hibridização natural também são registradas. taxa, range extensions in natural and modified habitats.

Coleocephalocereus superbus N.P.Taylor & Olsthoorn sp. nov. é descrito a partir de populações encontradas no extremo nordeste de Minas Gerais, Brasil. A partir de suas sementes tuberculadas podemos colocá-lo em C. subg. Coleocephalocereus, mas um grupo de características únicas dificultam o delineamento de suas relações dentro do gênero: os espinhos hipertróficos na base da planta, hábito cespitoso e ramos eretos, além do cefálio com cerdas castanho-escuras e flores diurnas de coloração magenta.

Im Nordosten Algeriens wurden acht Fundorte von Kalanchoe laxiflora und fünfzehn Fundorte von K. ×houghtonii gemeldet, als Ergebnis von Felduntersuchungen in den Wilayas (Provinzen) von Skikda, Annaba, El Tarf und Souk Ahras. Kalanchoe laxiflora wird hier zum ersten Mal aus Algerien und zum zweiten Mal vom nordafrikanischen Festland gemeldet. Kalanchoe ×houghtonii wurde bereits in Algerien nachgewiesen. Hier berichten wir über weitere Vorkommen in vier Wilayas. Die Substratpräferenzen, insbesondere in vom Menschen geschaffenen Lebensräumen, der Status der Einbürgerung sowie die zukünftige Ausbreitung der beiden Taxa werden diskutiert.

An overview of the conservation status of the genus Aloe L. (Asphodelaceae) in Zimbabwe is presented. Currently, fifteen Aloe taxa are threatened and near-threatened with extinction in Zimbabwe. There is great horticultural interest in the genus and there is evidence that Aloe taxa have been collected from the wild and used for this purpose. Other major threats to their conservation include agriculture, urbanisation, bush fires, habitat fragmentation and loss. Information about the habitat, conservation status and distribution maps of threatened and near-threatened Aloe taxa is presented.

Echinocereus fitchii subsp. albertii is a federally and state endangered cactus endemic to Texas that occurs exclusively on private lands. Sclerocactus brevihamatus subsp. tobuschii is a federally threatened and state endangered cactus occurring on private lands, as well as protected lands in Texas. Although listed under both federal and state laws, these laws give very limited protections to listed plants on private land. Nevertheless, section 7 of the Endangered Species Act requires federal agencies to ensure that their actions do not harm listed species. This paper provides case studies demonstrating how section 7 consultations lead to collaborations of federal and state conservation agencies, environmental consultants, non-profit organisations, and private landowners to conserve cactus populations in Texas, USA. Establishing good working relationships with landowners is essential for these conservation efforts.

Ensuring the protection of the natural environment and its components from the damage caused by humans, whether directly or indirectly, is a commitment that can no longer be delayed or disregarded. However, before attempting to conserve wild populations of any kind of animal or plant, it is important to know which taxa are involved and where they live, as this also allows us to identify the relevant hotspots and suggest the areas which need to be protected. In this paper the author presents a provisional checklist of taxa belonging to the Crassulaceae family, selected as a priority for conservation. This list itemises taxa with a restricted distribution (endemic) in a specific area of the Euro-Mediterranean biogeographical context. Only the taxa with a range confined to a single country of this geographic area are dealt with in this paper. The study also focused on taxa whose distribution is included in the political boundaries of a single nation, in order to connect them with the local ‘Red List’ and appropriate legislative measures. We have selected ninety-seven taxa divided between species and subspecies (varieties and hybrids are excluded), with details on their distribution (country and biogeographic area), category of endemism, and conservation references.

Flower colour polymorphism is one of the most attractive features in pollination studies. This article investigates the factors influencing the frequency of flower colour polymorphism in the Cuban cactus Leptocereus scopulophilus, where four flower morphs have been reported. We determined whether the colour of the tepals is a discrete variable and estimated morphs frequency in the population. To explain the frequencies of the flower morphs, we compared their dimensions. We also contrasted pollination success and flower florivory of the most frequent morphs. Leptocereus scopulophilus presents discrete values of tepal colour for all the morphs, including the albino morph reported in this study for the very first time. The light salmon morph is the most frequent in the population. This could be explained by the higher number of ovules and fruits it produces. Pollination in the species is confirmed to be exclusively nocturnal, and florivory is similar for the magenta and light salmon morphs.

Coleocephalocereus pluricostatus is an endemic cactus from eastern Brazil that occurs on naked gneiss/granite inselbergs in the Atlantic Forest biome. Here we report the extinction of a population of C. pluricostatus and the rapid decline of other populations of the species in eastern Minas Gerais, Brazil due to cochineal insects, diseases and mining operations. We offer some hypotheses to explain this dramatic decline and suggestions for monitoring the populations.