Wallichia oblongifolia
| Wallichia (wahl-lik-EE-ah) oblongifolia (ohb-lohn-jih-foh-LEE-ah) | |||||||
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Contents
Habitat and Distribution
Assam, China South-Central, East Himalaya, Myanmar, Nepal, and West Himalaya.
Description
Small, clustering palm, in dense clumps, 2-3 m (6.5-10 ft) tall, usually with very short trunks. with dark green, arching fronds, which are bright silvery-white underneath and are divided into fishtail-like leaflets.
Stems clustered, short and subterranean or to 1 m tall, to 40 cm in diam. Leaves spirally arranged; petioles to 2 m; rachis 1.5-2.5 m; pinnae 16 or 17 per side of rachis, ± oblong, with several lobes, regularly and alternately arranged, spreading in same plane, proximal 2 or 3 pinnae in a cluster, smallest erect; middle pinnae 45-56 × 7-12 cm, widest near apex. Inflorescences unisexual, male and female borne on separate stems; male inflorescences pendulous, not seen in their entirety; rachillae many, at least to 12 cm; male flowers 7-10 mm; stamens 6; female inflorescences to 1 m, horizontally spreading; rachillae 16-32, to 35 cm; female flowers to 6 mm. Fruits greenish brown to reddish, ovoid to ellipsoid, to 1.5 × 0.8 cm. (efloras.org) Editing by edric.
Culture
Warm, sheltered, and moist. Tolerant of light frost. Cold Hardiness Zone: 9b
Comments and Curiosities
Leaves: The leaves are spirally arranged or distichous, pinnate and induplicat. The leaf sheath often extends beyond the petiole and so forms a ligule. Over time it breaks down to black fibers. The petiole is well developed. The leaflets are simply folded and linear-lanceolate. They are irregularly rhombic or deeply lobed, sometimes auriculate at the base. The upper leaf surface is glabrous, the lower surface densely covered with hairs and dandruff.
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Inflorescences: The inflorescences are between the leaves (interfoliär) and always individually. They break through the leaf sheaths and develop in a basipetal order. They are branched once, and usually unisexual different: the female the distal or "terminal" standing, the male proximal that are often obscured by striking bracts. The peduncle is usually hairy, brown and scaly. There are several bracts on the peduncle, which are arranged spirally. They are usually densely covered with brown scales and hairs. The inflorescence axis is usually longer than the inflorescence stalk. The bracts are very small. The axis bears numerous flower-bearing lateral axes (Rachillae), which are more slender and densely hairy. Enter in a spiral arrangement small bracts, in whose armpits are the flowers. Flowers: The male flowers are in pairs or individually. Sometimes they are accompanied by a rudiment of a female flower. The chalice with three lobes or teeth. The receptaculum is between cup and crown and extended stalk-like. The crown overhangs the cup clearly. It is röhrig at the base and has three long tail. There are 3-15 stamens present. The stamens are joined at the base. They are also partially or completely with the corolla tube, sometimes even with a part of the tip. The anthers are straight. A stamp rudiment missing. The pollen is ellipsoidal and bisymmetrical. The germ is opening a distal sulcus. The longest axis measures 24 to 27 microns. The female inflorescences are usually upright and carry less, but more powerful Rachillae. The flowers are individually in a spiral arrangement. Each stands in the axil of a leaf high and is surrounded by three Brakteolen. The three sepals are low, rounded and imbricat. They are free or connate at most in the lowest range. The three petals are fused to about half, the free parts are valvat. There are 0-3 staminodes present. The ovary is spherical and two to dreifächrig with one ovule per subject. The scar is apical and conical. The ovules are hemianatrop. Fruits and seeds: The fruit is ellipsoid, and small reddish or purple color. It contains one or two, rarely three seeds. The scar remains are apically. The exocarp is smooth, the mesocarp is fleshy and filled with acicular crystals irritating. A endocarp is not differentiated. The seeds are basal. They are ellipsoidal or hemispherical. The endosperm is homogeneous. The embryo sits sideways. (From the German) |
- IMAGE GALLERY
Hawaii. Photo by Timothy Brian
Hawaii. Photo by Timothy Brian
Hawaii. Photo by Timothy Brian
Photo-Gardenology.org
Photo by deezpalms
Photo by Paul Craft
Female flowers. Photo by Paul Craft
Male spathe. Photo by Paul Craft
Male inflorescence. Photo by Paul Craft
Female inflorescence. Photo by Paul Craft
Photo by Paul Craft
La Habra, California. Photo by Dave B.
Photo-trebrown.com
Photo by Mike Gray,
Photo by Mike Gray,
Photo by Strontiumbaer,
External Links
References
Phonetic spelling of Latin names by edric.
Special thanks to Geoff Stein, (Palmbob) for his hundreds of photos.
Special thanks to Palmweb.org, Dr. John Dransfield, Dr. Bill Baker & team, for their volumes of information and photos.
Glossary of Palm Terms; Based on the glossary in Dransfield, J., N.W. Uhl, C.B. Asmussen-Lange, W.J. Baker, M.M. Harley & C.E. Lewis. 2008. Genera Palmarum - Evolution and Classification of the Palms. Royal Botanic Gardens, Kew. All images copyright of the artists and photographers (see images for credits).
Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.
