Lejeunea (sect. Flavae) R. M. Schust.
Authors/Creators
- 1. Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, Terengganu, Malaysia
- 2. Meise Botanic Garden, Meise, Belgium
- 3. Botany Unit, Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
- 4. Senckenberg Institute for Plant Form and Function (SIP), Jena, Germany & Institute of Biodiversity, Ecology and Evolution, Friedrich Schiller University Jena, Jena, Germany
- 5. Mittlere Letten 11, Herdwangen-Schönach, Germany
- 6. Botany Department, Eszterházy Károly Catholic University, Eger, Hungary
Description
[Clade XI]
Lejeunea sect. FlavaeR. M. Schust. (Schuster 1980: 941)Nesolejeunea Herzog (Herzog 1947: 327) – Type species: N. intercalaris Herzog (= L. acuta Mitt.).
Type species
Lejeunea flava (Sw.) Nees.
Description
Plants prostrate, glossy yellowish green, autoicous or dioicous. Stems with ca 10–16 rows of medullary cells. Leaves symmetrically ovate, apex usually rounded, rarely acute (L. acuta). Leaf cells with distinct trigones and intermediate thickenings. Cuticle mostly smooth, occasionally roughened by wax crystals. Oil bodies finely granular, 2–10 per cell. Lobules small, ca 1 / 4 × leaf length. Underleaves rather large, 3–6 × stem width, frequently imbricate. Male bracteoles restricted to the base of the male spike (exceptionally present throughout: L. brenanii E. W. Jones). Gynoecial innovations usually fertile but not repeatedly, with up to 2 gynoecia in a row. Perianths with 5 ± smooth keels, rarely eplicate (L. ramosissima Steph.). Asexual reproduction by specialized devices absent.
Distribution
Pantropical; centre of species diversity in tropical Africa (Jones 1968).
Species
Lejeunea acuta, L. brenanii, L. flava, L. isophylla E. W. Jones, L. lomana E. W. Jones, L. ramosissima Steph., L. tuberculosa Steph.
Notes
The main characters of sect. Flavae are the rather unspecialized, prostrate, glossy yellowish-green plants with rather large underleaves (3–6 × stem width), leaf cells with distinct trigones, finely granular oil bodies, and 5 - keeled perianths with ± smooth keels.
References
Jones (1968), Schuster (1980), Wigginton (2004).
Notes
Files
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Linked records
Additional details
Identifiers
Related works
- Cites
- Publication: 10.1179/006813868804146863 (DOI)
- Is part of
- Journal article: 10.5091/plecevo.170279 (DOI)
- Journal article: http://publication.plazi.org/id/4A3F894AF5FB5830A637C09234281FDE (URL)
- Is source of
- https://biodiversitypmc.sibils.org/collections/plazi/C51BD9C7C3AE5058A11410D3820FB765 (URL)
- https://www.gbif.org/species/315841088 (URL)
Biodiversity
- Scientific name authorship
- R. M. Schust.
- Kingdom
- Plantae
- Phylum
- Marchantiophyta
- Order
- Lejeuneales
- Family
- Lejeuneaceae
- Genus
- Lejeunea
- Taxon rank
- section
References
- Herzog T (1947) Hepaticae von der Comoreninsel Johanna. Botaniska Notiser 100: 317–334.
- Jones EW (1968) African hepatics. XIX. The Lejeunea flava complex. Transactions of the British Bryological Society 5: 548–562. https://doi.org/10.1179/006813868804146863
- Schuster RM (1980) The Hepaticae and Anthocerotae of North America, IV. Columbia University Press, New York.
- Wigginton M (2004) E. W. Jones's Liverwort and Hornwort Flora of West Africa. National Botanic Garden of Belgium, Meise.