Scilla cydonia

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Scilla cydonia
Systematics
Monocots
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Scilloideae
Genre : Squill ( Scilla )
Type : Scilla cydonia
Scientific name
Scilla cydonia
Speta

Scilla cydonia is a species of squill ( Scilla ) in the asparagus family (Asparagaceae).

features

Scilla cydonia is a geophyte onion . The relatively small onions are egg-shaped and white on the inside. Their diameter is 1 to 1.4 centimeters, their length 1.5 to 2 centimeters. Their shell is brown, the roots are unbranched and white. They are made up of onion leaves that store roof tiles and lie on top of each other for about four years. The two to four leaves are 8 to 10 centimeters long, 2 to 7 millimeters wide and runny; they appear at the same time as the slim, cylindrical shaft.

The inflorescence is an open raceme consisting of only one to four star-shaped flowers . The upright flower stalks are 4 to 15 mm long. The bracts are tiny or absent. The not very attractive flowers develop from green buds. The bracts measure 5 to 8 × 1.5 to 2.6 millimeters. Its upper side is colored from "Deep Greyish Lavender" ( Ridgway XLIII / 57 '' 'd) to wine reddish ("Pale Wistaria Violet" XXIII / 59' f), and its underside is greenish. The stamens are thread-like, colored similar to the perigone and measure 5 × 0.7 millimeters. The ovary , on which the dried bloom cladding leaves remain, is spherical and 2 millimeters in size. Its yellow base color is superimposed with a reddish red in some places. The stylus is 2 millimeters long. There are four spherical ovules per compartment . After flowering, the stems begin to lie flat on the ground. The capsules are irregularly spherical and stay moist for a long time. At maturity they open in the upper half lokulizid ventrifrag . The smooth, initially shiny, black, 2 millimeter large seeds are spherical and have a shiny white elaiosome , which is used to spread ants .

The flowering period extends from February to March, at higher altitudes until April.

Scilla cydonia is diploid with a chromosome number of 2n = 18.

Occurrence

Scilla cydonia occurs in maquis of the hill country of western Crete at an altitude of 300 m and in degraded mountain forests of Kali Limni at 1100 to 1200 m on Karpathos .

Systematics

The first description of Scilla cydonia carried out in 1998 by Franz Speta . Analysis of plastid DNA sequence data indicates the species within Scilla s. st. a place at the base.

supporting documents

  • Franz Speta : The Scilla species (Hyacinthaceae) of the Greek islands of Crete and Karpathos. In: Linz Biological Contributions. Volume 30, No. 1, Linz 1998, pp. 431-437 ( PDF on ZOBODAT ).

Individual evidence

  1. ↑ Speta (1998): p. 434, Latin description
  2. ↑ a b c Ralf Jahn, Peter Schönfelder: Excursion flora for Crete . With contributions by Alfred Mayer and Martin Scheuerer. Eugen Ulmer, Stuttgart (Hohenheim) 1995, ISBN 3-8001-3478-0 , p. 356 (as Scilla nivalis sensu lato).
  3. ^ Nicholas J. Turland, Lance Chilton, J. Robert Press: Flora of the Cretan Area. Annotated Checklist and Atlas . The Natural History Museum and HMSO, London 1993, ISBN 0-11-310043-4 (English, as Scilla bifolia ).

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