Lilium arboricola
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Lilium arboricola is a plant type from the genus of lilies ( Lilium ) in the Asian section . The species occurs in the tropical rainforests of Southeast Asia and was scientifically described in 1954.
description
Habitus
The small, very fleshy onion is flattened at the top and bottom at a height of 3 and a diameter of 5 centimeters. The individual scales of the onion are 2.5 centimeters long, 3 centimeters wide, wedge-shaped at the base and sharply tapered triangular in the lower part. Their color is yellowish-white at the base, tinged with red towards the top.
The stem is erect, slender, hairless, pure green and between 70 and 120 centimeters long. The plant bears a few, scattered, on very short petioles standing and downwardly curved, up to 25 centimeters long and 4.5 centimeters wide, pointed lanceolate, dark green leaves with three to five parallel veins. From the base of the stem to the middle, the leaves become larger, from there to the tip they become smaller again. In the leaf axils of the upper leaves, small green axillary bulbs are formed, sprout bulbs that detach from the axilla after ripening and later form a new plant that is genetically identical to the mother plant.
Flower and fruits
So far only a single wild specimen has been found in flower, the time of discovery in August suggests a flowering time of July / August. The inflorescence carries one to three nodding flowers on up to 17 centimeters long, slightly drooping and hairless pedicels, the foliage-like bracts are up to 12 centimeters long.
The approximately 5 centimeters long and 8 to 18 millimeters wide bracts are slender, elliptical to lanceolate in shape, while those of the inner circle of bracts are slightly wider. They overlap each other at the base, are strongly curved backwards ( Turk's collar shape ) and are slightly apple green or the “delicate green of a grape” (Frank Kingdon-Ward) and without any other color.
The outwardly curved, upright stamens are shorter than the perigone or pistil . The stamen is 2.2 to 2.5 centimeters long, pale green and purple at the top, the 1 centimeter long, linear to elongated anthers are mahogany, the pollen is dark orange. The flowers smell strongly of clover or nutmeg. The hairless nectar troughs are short, broadened in the lower part and bordered at the edges by a fine, purple line. The cylindrical ovary is 1.8 inches long and 0.3 inches wide. With the stylus, which is up to 2.5 centimeters long , unlike many other lilies, the stigma is hardly wider than the stylus itself.
The approximately rectangular, 4 to 4.5 centimeters long and 2 centimeters wide, oblong-round fruit capsules ripen in October to November, their seeds germinate immediately and epigeously . The number of chromosomes in the plant is 2n = 24.
Distribution and habitat
The only finds come from the mountains on the Hkrang-Hka River at an altitude of 1370 m in Kachin , Myanmar .
The plant colonizes branches of trees in tropical rainforests . During the summer it is extremely rainy there with a relative humidity of up to 100%, during the winter it is considerably drier. During the flowering period in July / August, temperatures are around 25–30 ° C.
Systematics / botanical history
Lilium arboricola was discovered in April 1953 by Frank Kingdon-Ward , who brought some bulbs and seeds to England. There it was presented to the public for the first time in 1954, and in the same year it was also first described by William Thomas Stearn . The epithet arboricola means something like "tree dwelling". However, it has only persisted in human culture for a few years; it has been lost since at least 1961.
At the end of 2006, Bleddyn and Sue Wynn-Jones discovered an epiphythical lily in Vietnam, which was cultivated by the Welsh company Crûg Farm Plants in Caernarfon and the Botanical Garden of the University of British Columbia in Vancouver, where it surprisingly became a new species ( Lilium eupetes ) proved.
Their closest relatives are probably Lilium primulinum and Lilium primulinum var. Ochraceum . Dasgupta and Deb also emphasize the relative proximity to the genus Nomocharis
swell
- William Thomas Stearn: Kingdon-Ward's epiphytic Burmese lily , in: Gardeners' Chronicle , 136: 126-127, 1954.
- S. Dasgupta, & DB Deb: Taxonomic revision of the genus Lilium L. in India and adjoining region , in: Candollea , 39: 497, p. 504, 1984.
- Mark Wood: Lily Species - Notes and Images , CD-ROM, July 13, 2006 version.
- Frank Kingdon-Ward: Return to the Irrawaddy , pp. 127-137, 1956.
Individual evidence
- ^ William Stearn: "Kingdon-Ward's epiphytic Burmese lily" , in: Gardeners' Chronicle, 136, p. 126, 1954
- ↑ Dolly Kolli: "Tracking a lost lily, L. arboricola." , In: The Lily Yearbook of the NALS, 44: 35-36, 1991
- ↑ "Lily re-found and conserved" , in: The Garden, 132: 5, 2007, ( Online ( Memento of the original of September 27, 2007 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check Original and archive link according to instructions and then remove this note. )
- ↑ Julian Shaw: " Three new Crûg Farm introductions " In: The Plantsman ns, 7 (1), pp. 39–43, 2008, Online ( page no longer available , search in web archives ) Info: The link was automatically marked as defective . Please check the link according to the instructions and then remove this notice.
- ^ William Stearn: "Kingdon-Ward's epiphytic Burmese lily" , in: Gardeners' Chronicle, 136, p. 127, 1954
- ^ S. Dasgupta & DB Deb: Taxonomic revision of the genus Lilium L. in India and adjoining region. , in: Candollea, 39: 497, p. 488, 1984
