Parodia tenuicylindrica

Parodia tenuicylindrica
Scientific classification
Kingdom:	Plantae
Division:	Angiospermae
(unranked):	Eudicots
Order:	Caryophyllales
Family:	Cactaceae
Genus:	Parodia
Species:	P. tenuicylindrica
Binomial name
Parodia tenuicylindrica (F.Ritter) D. R. Hunt
Synonyms[1]
Notocactus minimus Frič & Kruizinger ex Bruining 1940 Notocactus tenuicylindricus F.Ritter 1970

Parodia tenuicylindrica is a species of cactus from the genus Parodia. The small green cacti have yellow and red-brown spines, white wool and yellow flowers. They produce yellow-green fruit, and black seeds. P. tenuicylindrica can be found growing individually in Rio Grande do Sul, Brazil.

Taxonomy

The species was originally described as Notocactus minimus by Frič & Kruizinger in 1940, based on a description by Bruining. It was later described as Notocactus tenuicylindricus by Friedrich Ritter.^[1] Despite objections from hobbyists (among whom Notocactus species were popular) Notocactus (and others) were synonomised under Parodia.^[2] In 1997, based on Ritter's earlier description, D. R. Hunt classified the species as Parodia tenuicylindrica.^[1]

Description

P. tenuicylindrica are cylindrical cacti which are green to blue-green.^[1] In height, they are 4 to 8 centimetres (1.6 to 3.1 in) and are from 2 to 3 centimetres (0.79 to 1.2 in) in width.^[1] The plants have 13-21 notched and tuberculate ribs.^[1] On top of the tubercles, there are areoles with white wool. The species has straight and stout spines; the radial spines, of which there are between ten and fifteen, are pale yellow, and between 3 and 4 millimetres (0.12 and 0.16 in) in length, while the 2-4 red-brown central spines are between 3 and 6 millimetres (0.12 and 0.24 in) long.^[1] The species produces lemon yellow flowers (which are up to 4.3 centimetres (1.7 in) long) and greenish-yellow fruits. The seeds are black oblongs with tubercles.^[1]

Distribution

P. tenuicylindrica can be found growing solitarily in Rio Grande do Sul, Brazil.^[1]

References

1. ^ ^{a b c d e f g h i} Anderson, Edward F. (2001). The cactus family. Timber Press. p. 555. ISBN 9780881924985. 
2. ^ Eggli, U.; Nyffeler, R. (1998). "Proposal to Conserve the Name Parodia against Frailea (Cactaceae)". Taxon 47 (2): 475–6. ISSN 00400262.