Aa erosa

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Aa erosa
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Cranichideae
Genus: Aa
Species:
A. erosa
Binomial name
Aa erosa
Schltr., 1912

Aa erosa is a species of orchid in the genus Aa. [1] It is endemic to Peru and blooms in late winter and early spring.

Contents

As a member of the Orchidaceae family, Aa erosa (synonymous to the name Altensteinia erosa) exhibits protandy based on anatomical observations. [2] [3] In plants, protandry occurs when the male reproductive structure releases pollen before the female parts can.

Written by Delsy Trjillo, Thassilo Franke, and Reinhard Agerer (2011), their anatomical studies confirm the presence of protandry in Aa erosa when trying to understand its evolutionary adaptations among orchids. Furthermore, this evidence is supported in Trujillo et al. (2024) research studies, which describe similar floral behavior in Aa olivacea, a closely related species.  

Geographical Range & Location

The native range of this species is Peru. It is a tuberous geophyte and grows primarily in the subalpine or subarctic biome. [4]

Plant Classification

References

  1. Grobler, Lourens (2005). "The Colombian Aa". Orchid Species. IOSPE. Archived from the original on 30 June 2014. Retrieved 14 March 2014.
  2. Trujillo, Delsy; Franke, Thassilo; Agerer, Reinhard (2011-11-20). "Evidence of protandry in Aa Rchb.f. (Orchidaceae, Cranichideae)". Lankesteriana: International Journal on Orchidology (in Spanish). doi:10.15517/lank.v11i3.18302. ISSN   2215-2067.
  3. Trujillo, Delsy; Edquén, José D.; Fernandez-Hilario, Robin; Sato, Akira A. Wong; Salazar, Gerardo A. (2024-10-25). "A new green-flowered Aa (Cranichideae) from Peru". Lankesteriana: International Journal on Orchidology: 245–257. doi:10.15517/lank.v24i3.62472. ISSN   2215-2067.
  4. Kew (Powo Science) [ permanent dead link ] Aa erosa's geographical location & plant classification