Amaranthus blitoides var. nanus (Moq.) Iamonico
- Dataset
- GBIF Backbone Taxonomy
- Rank
- VARIETY
- Published in
- Iamonico. (2022). In: Phytotaxa 576(2): 147.
Classification
- kingdom
- Plantae
- phylum
- Tracheophyta
- class
- Magnoliopsida
- order
- Caryophyllales
- family
- Amaranthaceae
- genus
- Amaranthus
- species
- Amaranthus blitoides
biology_ecology
Phenology: — Flowering time january. Habitat and elevation: — Human-made habitat, around the sea level. Chromosome number: — Not still counted. Alien status: — Native (endemic?) to Saudi Arabia.
description
Description: — Similar to var. blitoides but smaller, i. e. 2.0 – 4.5 cm tall.
discussion
Taxonomic notes: — Iamonico (2016 c: 91) lectotypified the name Amaranthus blitum var. nanus on a specimens preserved at MPU (barcode MPU 022388). We found further three specimens at HAL (barcode HAL 0140219) and M (barcodes M 0241403 and M 0241404) which can be considered as the isolectotypes, here published for the first time. Concerrning the identity of Amaranthus blitum var. nanus, Iamonico (2016 c: 91 – 92) proposed to synonymized it with A. blitoides based on characters of flowers. However, no discussion was provided by Iamonico (2016 c: 91 – 92) regarding the generative characters. Based on the examination of the types of A. blitum var. nanus, and the comparison with specimens and living plants examined by one of us (DI) during the last 15 years, Moquin-Tandon’s variety appear to be very small, i. e. 2.0 – 4.5 cm tall, whereas A. blitoides s. str. is at least 10 – 20 cm tall (see also Akeroyd 1993, Bao et al. 2003, Mosyakin & Robertson 2003, Bayón 2015, Iamonico 2015, Atlas of Living Australia 2022). Waiting further studies (floristic and molecular ones could be useful), we think that this taxon should be maintained as separate for the moment, at least at variety rank. Lacking a combination under A. blitoides, we here propose a nomenclatural change.
distribution
Occurrence in Saudi Arabia (Fig. 9): — This species was firstly published for Saudi Arabia by Iamonico (2016 c: 91 – 92; see below “ TAXONOMIC NOTES ”), sub Amaranthus blitum var. nanus Moq. on the basis of an old Schimper’s collection in Makkah (lectotype). No further finding was done during the filed surveys.
materials_examined
Specimina visa selecta: — SAUDI ARABIA, Makkah, Ad cisternas Dschedda Arab feliz, 02 January 1836, Schimper 857 (MPU 022388!);
materials_examined
Type (lectotype designated by Iamonico 2016 c: 91): — SAUDI ARABIA. Ad cisternas Dschedda Arab feliz, 02 January 1836, Schimper 857 (MPU 022388!, image of the lectotype available at https: // herbier. umontpellier. fr / zoomify / zoomify. php? fichier = MPU 022388); isolectotypes at HAL 0140219 (image of the isolectotype available at http: // 141.48.4.202 / djatoka / jacq-viewer / viewer. html? rft _ id = hal _ 0140219 & identifiers = hal _ 0140219), M 0241403! (image at https: // plants. jstor. org / stable / viewer / 10.5555 / al. ap. specimen. m 0241403? loggedin = true) and M 0241404! (image at https: // plants. jstor. org / stable / viewer / 10.5555 / al. ap. specimen. m 0241404).