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Salpichlaena volubilis

Description

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Family Blechnaceae

Plants perennial , mostly terrestrial , occasionally on rock or epiphytic. Stems creeping to suberect or ascending , sometimes climbing [rarely arborescent ], slender to stout, dictyostelic, scaly . Leaves monomorphic or dimorphic , large and coarse , generally greater than 30 cm, often exceeding 1 m. Petiole not articulate , generally more than 2 vascular bundles arranged in arc, generally scaly at least at base . Blade often anthocyanic (reddish) when young, pinnatifid [rarely simple ] to pinnate-pinnatifid or 2-pinnate [rarely decompound ], glabrous or occasionally bearing scales or capitate glands . Rachis frequently grooved adaxially. Veins of sterile leaves generally free , rarely anastomosing, veins of fertile leaves united to form sorus-bearing secondary vein parallel to costa or costule (vascular commisure), sometimes anastomosing further. Sori elongate along secondary vein; indusia present [rarely absent], opening along costal side of fertile vein, frequently hidden by dehisced sporangia; sporangial stalk of 3 rows of cells . Spores monolete, reniform ; perine present, variously ornamented. Gametophytes green, cordate, sometimes bearing capitate hairs, antheridia and archegonia borne on lower surface.

Genera ca. 10, species ca. 250 (2 genera, 6 species in the flora ) : mostly tropical and south temperate (except Woodwardia, which is north temperate) .

Circumscription of genera is controversial, especially as to placement of those species now included in Blechnum . Characteristics holding the family together include the anastomoses of veins along the axes of the blade to form a series of areoles or a single continuous vein along which the sorus is borne, elongate sori with indusia opening toward midvein , bilateral spores, and chromosome base numbers of generally x = 28--36. Relationships of the family with both dryopteroid and athyrioid ferns have been suggested.[1]

Habitat

Typically found at an altitude of 0 to 4,653 meters (0 to 15,266 feet).[2]

Taxonomy

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Unambiguous Synonyms

  1. Salpichlaena volubilis (Kaulf.) Hook.


Notes

Publishing author : J.Sm.in Hk. Publication : Gen. t. 93. 1841 1841

Similar Species

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Members of the genus Salpichlaena

ZipcodeZoo has pages for 10 species, subspecies, varieties, forms, and cultivars in this genus:

S. hookeriana · S. lomarioide · S. lomarioidea · S. orientalis · S. scandens · S. serrata · S. serrulata · S. thalassica · S. volubilis · S. voluvilis

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal February 27, 2008:

Identifiers

Footnotes

  1. Raymond B. Cranfill "Blechnaceae". in Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org. [back]
  2. Mean = 613.960 meters (2,014.304 feet), Standard Deviation = 917.370 based on 242 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 2009-09-03