Galanthus trojanus
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| Galanthus trojanus | ||||||||||||
| APDavis , Özhatay |
Galanthus trojanus is a species of snowdrop ( Galanthus ) in the amaryllis family (Amaryllidaceae).
features
Galanthus trojanus is a perennial , completely bare bulbous plant . The onion measures 2.2 to 2.7 × 2.2 to 2.6 centimeters, is more or less spherical and whitish. The outer skin of the onion is thin, flaky, and brown to dark brown. The leaf sheath is tubular, membranous, finely striped, whitish and measures 5 to 5.6 × 0.5 × 0.6 centimeters. The bud systems are flattened.
The mostly two, rarely three leaves are more or less linear, but usually slightly thicker from the middle to the upper third. During the flowering period they are usually 8 to 20, rarely 5 to 24 centimeters long, usually 0.8 to 1.5, rarely 0.6 to 1.8 centimeters wide and grow further in length and slightly in the during and after the flowering period Width. When fully developed, they are erect, spread out or bent over. The main vein is clearly visible. The leaf margin is flat or almost curled. The tip of the leaf is more or less pointed to blunt and flat to very slightly hooded. The side facing away from the axis is medium to dark green, almost grayish and matt. The side facing the axis is medium green and shiny.
There are one or two flower stems . The shaft is rarely from 8, usually 15 to 23 centimeters long and has a round to oval profile. During the flowering period it stands upright, when it bears fruit it lies down. A flower sheath consisting of two fused valves is separated by a whitish translucent membrane-like tissue. When in bloom, it is curved forward. It is 2.9 to 4 inches long and 0.4 to 0.5 inches wide. The tip is cap-shaped. There is a flower stalk , which is shorter than the flower sheath during flowering. It is 1.5 to 2.5 centimeters long, has a round cross-section and a diameter of approximately 0.5 to 0.7 millimeters. There is only one flower on each flower stem . The flowers are pendulous, mostly white and have a pleasant smell.
The inflorescence consists of six irregular, ungrown bloom cladding sheets . These are arranged in two petal circles, with the outer ones being larger than the inner ones. The three outer bracts are 2.5 to 2.9 inches long, 1.5 to 1.7 inches wide, obovate, spoon-like, striped along their length and white. They are nailed to the base, the nail being 5 to 8 millimeters long. The three inner bracts are 1.1 to 1.5 centimeters long, 0.7 to 0.8 centimeters wide, more or less wide, obovate to inverted triangular, indented at the tip, slightly curved outwards, lengthwise striped and mainly white. Each of the inner bracts has a short, more or less V-shaped green markings at the tip. This mark is usually widest at the lower two ends of the bracts as it enlarges into the lobes on either side of the indentation. But it can also be reduced to two small, eye-like, oblique marks in the lobes. Sometimes there are two eye-like drawings at the base of the inner bracts. The side of the inner bracts facing the axis has an indistinct green drawing which completely covers the bract. The six stamens are arranged in two close stamen circles. They are 6 to 7 millimeters long, unwaxed, shorter than the inner petals and grown at the lower end. The stamens are whitish and short with a length of only about 1 to 1.2 millimeters. The yellow anthers measure approximately 5 to 6 × 1.2 millimeters, are lobed at the base and taper to a distinct apiculum . The ovary measures 8 to 10 × 4 to 6.5 millimeters and is ellipsoidal to obovate. The stylus are narrow and about 7 to 9.4 millimeters long. The scar is small and either heady or not heady.
The capsule is so far not well known. It is green, more or less ellipsoidal in shape and measures approximately 1.2 to 1.5 × 0.9 to 1 centimeters.
In the natural location, the flowering time is in March and the fruit ripening in May. In culture, the species blooms in January or February and produces fruit in March.
Occurrence
Galanthus trojanus is endemic to northwestern Turkey . This snowdrop is only known from the place where the holotype (the terra typica ) was found in the province of Çanakkale . The type is growing in an undisturbed, open woodland under oaks ( Quercus cerris ) at altitudes of approximately 350 to 450 meters. Are at this location beyond Kermes oak ( Quercus coccifera ), Juniperus oxycedrus , Paeonia peregrina , butcher's broom ( ruscus ), Scilla bithynica , Fritillaria bithynica , Windflower ( Anemone blanda ), crocus ( Crocus ) arum ( Arum ), and Sharp Find buttercups ( Ranunculus acris ). The subsoil consists of basalt, the soil is rich in humus.
Botanical history
In 1994 Neriman Özhatay, Andrew Byfield and Margaret Johnson discovered an unidentified snowdrop in western Turkey. The plants grown from the seeds collected there in the Alpine House of the Royal Botanical Garden Kew first bloomed in 1997 and were fully grown in 1998. Initially, the plants could not be assigned to any of the 18 species of Galanthus known at the time , but they appeared to be related to Galanthus nivalis or Galanthus rizehensis . In 2000, the site where the snowdrop seeds were collected was visited by Engin Özhatay and Neriman Özhatay during the flowering period to study the plants in situ. It was then clear that it was a new species, described in 2001 as Galanthus trojanuns by Aaron P. Davis and Neriman Özhatay . The name refers to the ancient landscape of Troas in which the city of Troy was located, the area is now part of the Turkish province of Çanakkale . The holotype was collected in the eastern part of the Troas.
protection
The species is currently not listed on the IUCN Red List, but is provisionally classified by the authors of the first description as "Critically Endangered (CR)" (critically endangered). The reason is the very small known area and that the species has so far only been found in one location, a decline in population is also suspected.
supporting documents
- Aaron P. Davis, Nerim Özhatay: Galanthus trojanus: a new species of Galanthus (Amaryllidaceae) from north-eastern Turkey . In: Botanical Journal of the Linnean Society . Volume 137, Issue 4, 2001, doi : 10.1006 / bojl.2001.0480 , pp. 409-412.
Web link
- Galanthus trojanus inthe IUCN 2013 Red List of Threatened Species . Posted by: Davis, A., 2011. Retrieved April 23, 2014.