Navia (plant)

Navia is a plant genus in the subfamily Navioideae within the family Bromeliaceae ( Bromeliaceae ). Previously they were classified in the subfamily Pitcairnioideae. The genus name honors the Navia scientist Bernard Sebastian Nau († 1845). Today one expects about 93 species in this genus. Distribution area is the north-eastern South America ( Colombia, Venezuela, Brazil, Guyana and Suriname ) with the Guiana Highlands as a development center.

Description

In Navia species are terrestrial, mostly xerophytic perennial herbaceous plants that can sometimes form by vegetative propagation stocks. Some species form small, non-woody stems, which may be branched, sometimes even in the course of many years.

In initial or terminal rosettes, the rough leaves stand together. The flat, curved inwards or back sheet edges are sawn smooth or prickly. At least the lower leaf surface is scaly. The stomata have wide and narrow subsidiary cells. The Saugschuppen overlap a little, are irregular and located relatively close to some species. It is not a star-shaped Chlorenchym and no Hypodermalsklerenchym available.

Few Navia species form a more or less long inflorescence stem; usually the terminal inflorescence axis is compressed and the inflorescence so sitting in the nest -like rosette of leaves. The simple or branched, capitate inflorescences sometimes have showy bracts. There may be a flower stems. The depending on the type small to large, hermaphroditic flowers are triple. Of the three spoon-shaped sepals, the two upper cover the bottom. The three free petals are tiny. There are two circles, each with three free stamens present. Three carpels are fused into a top permanent or semi to completely inferior ovary. The stylus is slim. Pollination is mostly by wind ( anemophily ); this occurs in no other genus of Bromeliaceae.

The flowers formula is: or

Are formed capsule fruits. The seeds have a net-like surface and no appendages.

System

The genus Navia in 1830 by Mart. ex Schult. f in JJ Roemer & JA Schultes: Systema Vegetabilium, 7 ( 2): lxv, 1195 described two species. Type species is Navia caulescens Mart. ex Schult .. Most Navia species were Lyman B. Smith, sometimes described in collaboration with Julian Alfred Steyermark and Harold E. Robinson.

Since molecular genetic studies showed that the subfamily Pitcairnioideae was not monophyletic in their original extent it was divided into several subfamilies. The subfamily Navioideae was reactivated with the genera Brewcaria, Cottendorfia, Sequencia, Steyerbromelia and Navia. Of the genus Navia species with aged men or paniculate inflorescences in the genus and the species Brewcaria with appendages were spun at the seeds in the genus Steyerbromelia von Holst 1997.

There are about 93 species of Navia:

  • Navia abysmophila L.B.Sm.
  • Navia acaulis Mart. ex Schult. f
  • Navia affinis L.B.Sm.
  • Navia albiflora L.B.Sm., Steyerm. & H.Rob.
  • Navia aliciae L.B.Sm., Steyerm. & H.Rob.
  • Navia aloifolia L.B.Sm.
  • Navia angustifolia ( Baker) Mez
  • Navia arida L.B.Sm. & Steyerm.
  • Navia aurea L.B.Sm.
  • Navia axillary Betancur
  • Navia barbellata L.B.Sm.
  • Navia berryana L.B.Sm., Steyerm. & H.Rob.
  • Navia bicolor L.B.Sm.
  • Navia brachyphylla L.B.Sm.
  • Navia breweri L.B.Sm. & Steyerm.
  • Navia cardonae L.B.Sm.
  • Navia caricifolia L.B.Sm.
  • Navia carnevalii L.B.Sm. & Steyerm.
  • Navia caulescens Mart. ex Schult. f: Navia caulescens Mart. ex Schult. var f caulescens
  • Navia caulescens var minor Schult. f
  • Navia duidae L.B.Sm. var duidae
  • Navia duidae var glabrior L.B.Sm.
  • Navia lactea L.B.Sm., Steyerm. & H.Rob.
  • Navia lanigera L.B.Sm.
  • Navia lasiantha L.B.Sm. & Steyerm.
  • Navia latifolia L.B.Sm.
  • Navia lepidota L.B.Sm.
  • Navia liesneri L.B.Sm., Steyerm. & H.Rob.
  • Navia lindmanioides L.B.Sm.
  • Navia linearis L.B.Sm., Steyerm. & H.Rob.
  • Navia luzuloides L.B.Sm., Steyerm. & H.Rob.
  • Navia maguirei L.B.Sm.: Navia maguirei L.B.Sm. var maguirei
  • Navia maguirei var minor L.B.Sm.
  • Navia parvula L.B.Sm. parvula var
  • Navia parvula var expansa L.B.Sm.

No longer belong to the genus:

  • Navia brevifolia Griseb. → Deuterocohnia brevifolia ( Griseb. ) MASpencer & LBSm.
  • Navia brocchinioides L.B.Sm. → Brewcaria brocchinioides ( L.B.Sm. ) B.Holst
  • Navia cataractarum Sandwith → Brocchinia cataractarum ( Sandwith ) B.Holst
  • Navia diffusa L.B.Sm. → Steyerbromelia neblinae B.Holst
  • Navia fluviatilis L.B.Sm. → Brocchinia rupestris ( Gleason ) B.Holst
  • Navia gracilis L.B.Sm. → Brewcaria reflexa ( L.B.Sm. ) B.Holst
  • Navia hechtioides L.B.Sm. → Brewcaria hechtioides ( L.B.Sm. ) B.Holst
  • Navia hohenbergioides L.B.Sm. → Brewcaria hohenbergioides ( L.B.Sm. ) B.Holst
  • Navia platyphylla L.B.Sm. & Steyerm. → Steyerbromelia ramosa ( L.B.Sm. ) B.Holst
  • Navia plowmanii L.B.Sm., Steyerm. & H.Rob. → Steyerbromelia neblinae B.Holst
  • Navia ramosa L.B.Sm. → Steyerbromelia ramosa ( L.B.Sm. ) B.Holst
  • Navia reflexa L.B.Sm. → Brewcaria reflexa ( L.B.Sm. ) B.Holst
  • Navia rupestris ( Gleason ) Sandwith → Brocchinia rupestris ( Gleason ) B.Holst
  • Navia thomasii L.B.Sm., Steyerm. & H.Rob. → Steyerbromelia thomasii ( LBSm., Steyerm. & H.Rob. ) B.Holst

Navia lopezii L.B.Sm. was often cited as the only type that does not have otherwise typical for the family Saugschuppen. Julian Alfred Steyermark & Berry introduced in 1984 in Ann. Missouri Bot Gard, 71:. 297 this species as Aratitiyopea lopezii in a new genus in the family of Aratitiyopea Xyridaceae. So now own all bromeliads species Saugschuppen.

Swell

  • TROPICOS
  • The Bromeliaceae family in APWebsite (English )
  • Harry E. Luther: An Alphabetical List of Bromeliad Binomials, 2008 (PDF, 321 kB) in The Marie Selby Botanical Gardens, Sarasota, Florida, USA. Published by The Bromeliad Society International. (PDF file, 314 kB)
  • Werner Rauh: Bromeliads - Tillandsias and other cultural worthy bromeliads, Verlag Eugen Ulmer, Stuttgart 1990, ISBN 3-8001-6371-3
  • Harold Robinson: A Monograph on Foliar Anatomy of the Genera Connellia, Cottendorfia, and Navia ( Bromeliaceae ) in Smithsonian contributions to Botany, number 2, 1969, pp. 1-41: PDF Online.
  • Thomas J. Givnish, Kendra C. Millam, Paul E. Berry & Kenneth J. Sytsma: Phylogeny, adaptive radiation, and historical biogeography of Bromeliaceae inferred from ndhF sequence data, in Aliso, 23, 2007, Rancho Santa Ana Botanic Garden, S. 3-26: Online. (PDF, 2.1 MB)
Julius Hermann Schultes Ovary (botany) Lyman Bradford Smith
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