Lilium rubescens
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Lilium rubescens |
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| S. Watson |
Lilium rubescens ( English Redwood lily , Chaparral lily ) is a species from the genus of lilies ( Lilium ) in the American section .
description
Lilium rubescens reaches a height of 60 cm to 200 cm. The bulbs are oval and up to 9.4 cm long, they are covered with wide, white, lanceolate scales and form rhizomes . The stem is hard and straight with a bluish tinge. The leaves are wide and lanceolate, between 3.4 cm and 12.3 cm long and between 1 cm and 2.8 cm wide. They are arranged in three to five whorls of three to fifteen leaves that shrink towards the top.
The plant blooms from the end of May to the beginning of August with 1 to 40 upright flowers in an open umbel that have a strong scent. The hermaphrodite flowers are threefold. The six identical bloom cladding sheets ( tepals ) are rolled backwards at the tips and form a tube towards the base. They are 4.3 to 6.6 cm long and between 0.6 cm and 1.4 cm wide. The basic color of the flowers is wax-white, which over time darkens from pink to red. The anthers are yellow, the pollen are orange.
The seeds mature in seed capsules that are 2 cm to 3.6 cm long, 1.7 and 2.7 cm wide and have six longitudinal grooves. The seed germinates with a delay - hypogeic .
distribution
The species is native to California , where it occurs from Santa Cruz County north along the coast to Del Norte County . In the south of its range, however, it has almost become extinct due to urbanization . The species is listed by the "California Native Plant Society" on the list of rare species (list 4).
Lilium rubescens needs dry soil, it grows best in coastal redwood forests ( Sequoia sempervirens ), less often in other evergreen mixed forests at altitudes between 0 and 1500 m above sea level.
genetics
Lilium rubescens is the only known species of lily that has a long metacentric chromosome and eleven short acrocentric chromosomes. Metacentric means that the centromere is in the middle, with the acrocentric chromosomes it is at the end. All other species of lily have two long metacentric and ten short acrocentric chromosomes.
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literature
- Mark W. Skinner: Lilium rubescens . In: Flora of North America . tape 26 . Oxford University Press, Oxford 2003, ISBN 978-0-19-515208-1 , pp. 183 ( online [accessed February 2, 2009]).
Web links
- Markus Hohenegger: Lilium rubescens. In: The Genus Lilium. Retrieved February 2, 2010 .