Soehrensia hahniana explained

Soehrensia hahniana is a species of Soehrensia found in Paraguay.^[1]

Description

Soehrensia hahniana grows creeping, prostrate or hanging, laterally branching shoots. The spherical to cylindrical, light green to dark-green shoots reach heights of growth of up to 1 meters with a diameter of 1.5-. There are 8 low ribs that are notched and tuberous with areoles at the edge. The areoles have 8-14 whitish yellow to light brown spines. The 1-3 central spines are long. The radial spines are long.The broad, funnel-shaped woolly bud with creamy white flowers appear near the top of the shoot and are open during the day. They are long and have the 11.5- diameter. The ovoid shiny green fruits are long and in diameter covered with scales. The plant has black brown seeds.^{[2] [3]}

Distribution

Plants are found growing in the shade in dry woodland forest in alkaline clay soil in Rio Apa, Presidente Hayes Department, Paraguay at elevations of 200 to 500 meters.^[2]

Taxonomy

This species was first described by Curt Backeberg as Mediocactus hahnianus in 1957 based on a plant found in Hahn's nursery. The plant was rediscovered in the Chaco Basin, Paraguay in 2009 by Lidia Pérez de Molas. Boris O. Schlumpberger placed the species in the genus Soehrensia in 2012.^[4]

Notes and References

1. Web site: Soehrensia hahniana (Backeb.) Schlumpb. . Plants of the World Online . 2000-01-01 . 2024-01-02.
2. Kiesling . Roberto . de Molas . Lidia Pérez . Oakley . Luis . Schweich . Daniel . las Peñas . M. Laura . de Barmon . Aymeric . Metzing . Detlev . Mediocactus hahnianus: A Resolved Enigma and a New Chapter of Its History . Haseltonia . Cactus and Succulent Society of America . 27 . 1 . 2021-03-01 . 1070-0048 . 10.2985/026.027.0105 . 11336/139710 . free .
3. Book: Anderson, Edward F. . Eggli . Urs . Das grosse Kakteen-Lexikon . Ulmer . Stuttgart (Hohenheim) . 2005 . 3-8001-4573-1 . de . 231.
4. Korotkova . Nadja . Aquino . David . Arias . Salvador . Eggli . Urs . Franck . Alan . Gómez-Hinostrosa . Carlos . Guerrero . Pablo C. . Hernández . Héctor M. . Kohlbecker . Andreas . Köhler . Matias . Luther . Katja . Majure . Lucas C. . Müller . Andreas . Metzing . Detlev . Nyffeler . Reto . Sánchez . Daniel . Schlumpberger . Boris . Berendsohn . Walter G. . Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family . Willdenowia . Botanic Garden and Botanical Museum Berlin, Freie Universitaet Berlin . 51 . 2 . 2021-08-31 . 0511-9618 . 10.3372/wi.51.51208 . free .