Anathallis amazonica E. Pessoa & M. Alves 2012
- Dataset
- A new Anathallis (Orchidaceae: Pleurothallidinae) from the Brazilian Amazon
- Rank
- SPECIES
- Published in
- Pessoa, Edlley, Alves, Marccus (2012): A new Anathallis (Orchidaceae: Pleurothallidinae) from the Brazilian Amazon. Phytotaxa 73 (1): 13-16, DOI: 10.11646/phytotaxa.73.1.3, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.73.1.3
Classification
- kingdom
- Plantae
- phylum
- Tracheophyta
- class
- Liliopsida
- order
- Asparagales
- family
- Orchidaceae
- genus
- Anathallis
- species
- Anathallis amazonica
distribution
Distribution and Ecology: — This species is known only from the type locality, in the central Brazilian Amazon, state of Amazonas. The vegetation in the area is characterized by moist tropical lowland forest, locally called terra firme forest (Lima et al. 2008). The flowering period is poorly known, but based on the specimens cited, flowers can be observed from February to July.
etymology
Etymology: — This new species is named on behalf of the area of occurrence, Brazilian Amazon basin. Morphological affinities: — Anathallis amazonica is morphologically related to species placed in Panmorphia by Luer. The new species has a subrepent habit like A. holstii and A. polygonoides. Leaf shape appears to vary: the leaves on the mature branches are oblanceolate like A. sertularioides, while on the immature branches they are elliptic as is found in A. holstii and A. polygonoides. The inflorescences have an inconspicuous peduncle and the flowers appear to arise from the same point like A. holstii and A. polygonoides. In A. sertularioides, the inflorescence is long pedunculate. The flowers on A. amazonica have narrow elliptic petals like A. sertularioides, but A. polygonoides and A. holstii have broadly elliptic petals. The lip of A. amazonica is oblong and ciliate from the base up to the middle, entirely ciliate or sometimes not ciliate. However, the three related species have a slightly trilobed to clearly trilobed lip with an entire margin (Table 1). Additional specimens examined (paratypes): — BRAZIL. Amazonas: Coari, Campo Petrolífero do Rio Urucu, 10 February 1992, fl., J. da Cruz 240 (INPA); 03 April 1992, fl., J. da Cruz 241 (INPA); 11 May 1992, fl., J. da Cruz 243 (INPA); 17 June 1992, fl., J. da Cruz 239 (INPA); 03 July 1992, fl., J. da Cruz 244 (HUAM) 05 May 1996, fl., J. da Cruz et al. 471 (HUAM).
materials_examined
Type: — BRAZIL. Amazonas: Coari, Campo Petrolífero do Rio Urucu, 04 º 08 ’ 25 ” S, 65 º 33 ’ 13 ” W, 70 m, 9 May 1993, J. da Cruz 242 (fl, fr) (holotype INPA!, isotypes, HUAM!, UFP!)