Jensenia spinosa

Jensenia spinosa is a dioicous bryophyte plant in the liverwort family Pallaviciniaceae. It is the only African member of the genus Jensenia, and generally occurs at high elevations.[4] It is widespread but scarce, and has been found in South Africa, Malawi, Tanzania, Rwanda (Volcanoes National Park at 3,650m), the Democratic Republic of the Congo, as well as the islands of Mauritius, Réunion and Saint Helena.[5]

Jensenia spinosa
Scientific classification
Kingdom:
Plantae
Division:
Marchantiophyta
Class:
Jungermanniopsida
Order:
Metzgeriales
Family:
Pallaviciniaceae
Genus:
Jensenia
Species:
J. spinosa
Binomial name
Jensenia spinosa
Synonyms[1][2][3]
  • Pallavicinia spinosa (Lindenb. & Gottsche) Grolle 1979, illegitimate homonym, not (Gottsche) Steph. 1892 nor Steph. ex Yoshin. 1894
  • Symphyogyna spinosa Lindenb. & Gottsche (basionym)

Jensenia spinosa is very similar to its neotropical relative J. erythropus,[5] though geographically isolated. Both may be confused with Symphyogyna species, but the latter's scale-shaped, rather than cup-shaped involucres have been useful in distinguishing the two genera.[4][6]

References
  1. "Jensenia spinosa (Lindenb. & Gottsche) Grolle". The Plant List; Version 1. (published on the internet). Royal Botanic Gardens, Kew and Missouri Botanical Garden. 2010. Retrieved January 6, 2012.
  2.  Under its current treatment of Jensenia spinosa (from its basionym Symphyogyna spinosa), this species was published in Acta Botanica Fennica 133: 65. 1986. "Name - Jensenia spinosa (Lindenb. & Gottsche) Grolle". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved January 6, 2012.
  3.  Symphyogyna spinosa, the basionym of J. spinosa, was originally described and published in Synopsis Hepaticarum 786. 1847. "Name - Symphyogyna spinosa Lindenb. & Gottsche". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved January 6, 2012.
  4. "The hepatic, Jensenia spinosa (= Pallavicinia stephanii: Pallaviciniaceae), in southern Africa". Bothalia. 23, 2: 223–229. 1993.
  5. Grolle, Riclef (1979). "Miscellanea hepaticologica 171-180". Journal of Bryology. 10: 263–272.
  6. Van der Gronde, K. (1980). "Studies on Colombian Cryptogams. VIII". Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht. No. 505 Botany. C83 (3): 271–278.


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