Angraecum penzigianum

There are no specific threats identified for this species but its habitat of humid forest has decreased in area since the 1970's by 33% (Moat and Smith 2007). The main threat to humid forests is slash and burn agriculture (Moat and Smith 2007), but logging and mining are also threats (Desbureaux et al. 2016). Deforestation has continued in recent years with 318,000 hectares of forest lost across Madagascar in 2014 (Global Forest Watch 2016). This species is found in four protected areas but the effectiveness of protected areas in Eastern Madagascar to prevent deforestation are reported to be limited, with only a 20% reduction in deforestation within protected areas compared to non protected areas (Desbureaux et al. 2016). As an orchid species it also possible that plants are collected from the wild for cultivation. Illegal collection, annual fires and logging were listed as the main threats in the Madagascar Red List (GSPM 2011).

There are no known conservation measures specifically for this species. It is found in four protected areas, Andringitra National Park, Anjanaharibe-Sud Special Reserve, Montagne d'Ambre National Park and Zahamena Ankeniheny corridor. There is one ex situ collection of this species held at a botanic garden (BGCI 2016). Surveys to determine the population size and trends along with ex situ seed conservation are recommended. This species is listed on Appendix II of the Convention on International Trade in Endangered Species (CITES 2016). This species was rated as Endangered B2 in the Madagascar Red List (GSPM 2011).