Angraecum lisowskianum

Names and Taxonomy

The accepted scientific name is Angraecum lisowskianum Szlach. & Olszewski. The name was first published in Flore du Cameroun 36: 892 (2001) [2]. Kew’s Plants of the World Online lists the name as accepted and records its native range as Nigeria to Equatorial Guinea, including the island of Bioko [1]. A homotypic synonym is Conchograecum lisowskianum (Szlach. & Olszewski) Szlach., Grochocka, Olędrz. & Mytnik, published in 2018 [1]. No vernacular common name is documented in the primary sources; the IOSPE website refers to it as “Liskowski’s Angraecum” [3].

How to Identify This Species

Field descriptions are limited to the brief notes provided by Kew and IOSPE. The plant is an epiphytic subshrub that grows on tree branches in wet tropical forests. Leaves are arranged along a short, upright stem, typical of many Angraecum species, but detailed leaf size, shape or texture are not recorded in the available sources. The flower is reported to be white‑cream and to bloom in the summer months [3]. No measurements of flower dimensions, spur length, or fragrance are provided in the cited material. Consequently, identification in the wild or in cultivation should rely on the combination of:

• Epiphytic habit on trees in low‑land wet forest.
• White‑cream, summer‑flowering orchid blossoms.
• Geographic occurrence within the documented range (Nigeria–Equatorial Guinea).

Because the description is minimal, confusion with other West‑Central African Angraecum species (e.g., Angraecum egertonii) is possible. Confirmation should be sought from a herbarium specimen or a taxonomic key that includes detailed floral morphology.

Native Range and Habitat

According to POWO, Angraecum lisowskianum occurs in Nigeria, Cameroon, Equatorial Guinea and the Gulf of Guinea island of Bioko [1]. The species is an epiphyte that inhabits the wet tropical biome, typically on the trunks and branches of forest trees. No specific elevation range is given in the cited references, but the “wet tropical” descriptor suggests low‑to‑mid‑elevation rainforests. The type specimen was collected near Ebebiyin, close to the road from Bata in Equatorial Guinea [4].

Species‑Specific Care

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The available literature does not provide cultivation protocols for this species. Growers should therefore treat it as a typical wet‑tropical epiphytic orchid, but any specific watering, temperature or mounting recommendations would be speculative without experimental evidence.

Flowering and Pollination

IOSPE notes that Angraecum lisowskianum flowers in the summer season [3]. No information on flower longevity, scent, spur length, or pollinator identity is supplied in the cited sources. As with many African Angraecum, a long nectar spur suggests moth pollination, but this remains an inference and is not documented for this taxon.

Evidence and Limitations

This profile is based on a limited set of online taxonomic databases and a brief horticultural entry. Key gaps include detailed morphological measurements, precise elevation range, and any verified cultivation experience. Further field studies and horticultural trials are needed to flesh out the species’ description and care requirements.