Falcatifolium sleumeri

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Falcatifolium sleumeri
Systematics
Subdivision : Seed plants (Spermatophytina)
Class : Coniferopsida
Order : Conifers (Coniferales)
Family : Stonecaceae (Podocarpaceae)
Genre : Falcatifolium
Type : Falcatifolium sleumeri
Scientific name
Falcatifolium sleumeri
de foliage. & Silba

Falcatifolium sleumeri is a low shrub of the genus falcatifolium in the family of podocarpaceae (Podocarpaceae). The species is only known as a single shrub from a location in the Indonesian part of New Guinea . Since the area has not been explored since it was found, nothing is known about the actual distribution of the species, so it is listed as potentially endangered onthe IUCN Red List .

description

Falcatifolium sleumeri grows as a low, perhaps even prostrate, 20 centimeter high, evergreen shrub . The trunk bark is scaly and gray-brown. The numerous branches grow spread out or upright and form a broad, flat crown that covers several square meters of the soil. The leaves are linear-egg-shaped, curved at the short stalked base, sickle-shaped to almost straight, 0.6 to 1 centimeter long and 1.8 to 2 millimeters wide. The central rib is raised on the underside of the leaf, the leaf margins are slightly curved downwards and converge to a pointed tip with a thorn . Pollen and seed cones are not known.

Distribution and ecology

The species is only known from the Vogelkop Peninsula in the Indonesian part of New Guinea . There it grows at an altitude of around 1920 meters on Mont Nettoti in a dark, mossy forest.

Hazard and protection

Falcatifolium sleumeri was classified as “Near Threatened” by the IUCN in 2011 on the Red List . Only one shrub of the species is known, but the area has not been explored since it was found. Therefore, nothing is known about the size of the range or the population.

Systematics and Etymology

Falcatifolium sleumeri is a species of the genus Falcatifolium , which belongs to the Podocarpaceae family. David John de Laubenfels mentioned the herbal specimens used for the description as early as 1969 when describing Falcatifolium papuanum , speculating that it could be a separate species. However, he did not describe the finds as a separate species until 1988, together with John Silba in the journal Phytologia ( first description ). It differs from the other species of the genus by the growth form as a low, only 20 centimeter high shrub and by the small leaves. However, since neither pollen nor seed cones are known, the taxonomic status remains unclear. No synonyms of the species are known. James Eckenwalder , however, assigns the specimen he found to the genus Falcatifolium papuanum and therefore sees the name Falcatifolium sleumeri only as a synonym for Falcatifolium papuanum .

The genus name Falcatifolium is derived from the Latin falcis , "sickle" and folia , "leaf", and thus refers to the sickle-like curved leaves. The specific epithet sleumeri honors the German botanist Hermann Otto Sleumer (1906–1993) who worked at the Rijksherbarium in Leiden .

use

Nothing is known about a use of the species.

swell

literature

  • Aljos Farjon: A Handbook of the World's Conifers . tape 1 . Brill, Leiden-Boston 2010, ISBN 978-90-04-17718-5 , pp. 363, 367, 368 .
  • James E. Eckenwalder: Conifers of the World. The Complete Reference . Timber Press, Portland, OR / London 2009, ISBN 978-0-88192-974-4 , pp. 262 .

Individual evidence

  1. ^ Aljos Farjon: A Handbook of the World's Conifers. Volume 1, pp. 367-368
  2. ↑ a b c Aljos Farjon: A Handbook of the World's Conifers. Volume 1, p. 368
  3. ↑ falcatifolium sleumeri in the endangered Red List species the IUCN 2013. Posted by: A. Farjon, 2011. Accessed January 24, 2014.
  4. ↑ Falcatifolium sleumeri. In: The International Plant Name Index. Retrieved January 24, 2014 .
  5. ↑ Falcatifolium sleumeri. In: The Plant List. Retrieved January 24, 2013 .
  6. ↑ James E. Eckenwalder: Conifers of the World , p. 262
  7. ^ Aljos Farjon: A Handbook of the World's Conifers. Volume 1, p. 363
  8. ^ Aljos Farjon: A Handbook of the World's Conifers. Volume 1, p. 367

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