Observations on leaf color, epiphyll cover, and damage on Malayan Iguanura walliehiana

lguanura wallichiana (Wall. ex Mart.) Hook.f (formerly known as I. geonomaeformis Mart.) is a common palm throughout the lowlands of Malaya (Kiew 1972a. 1976) growing to about 2 m in height and bearing a crown of about seven to nine leaves. A population of 18 plants of Iguanura wallichiana subsp....

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Main Author: Kiew, Ruth
Format: Article
Language:English
Published: International Palm Society 1982
Online Access:http://psasir.upm.edu.my/id/eprint/40210/1/Observations%20on%20leaf%20color%2C%20epiphyll%20cover%2C%20and%20damage%20on%20malayan%20iguanura%20walliehiana.pdf
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author Kiew, Ruth
author_facet Kiew, Ruth
author_sort Kiew, Ruth
collection UPM
description lguanura wallichiana (Wall. ex Mart.) Hook.f (formerly known as I. geonomaeformis Mart.) is a common palm throughout the lowlands of Malaya (Kiew 1972a. 1976) growing to about 2 m in height and bearing a crown of about seven to nine leaves. A population of 18 plants of Iguanura wallichiana subsp. malaccensis (Becc.) Kiew in the Gombak Field Station, Selangor was observed over a period of 15 months and the age of leaves derived from weekly measurements of increase in length of the developing apical leaf until expansion and the persistence of the old leaves on the stem (Kiew 1972b). Leaf production is regular and the average interval between leaf production is seven months with a range of S~-10~ months. The time span (plastochrone) between the emergence of the sword leaf (unexpanded leaf) and the expansion of the first leaf (leaf I) was found to be seven months; successive leaves down the trunk are increasingly older by seven months. As shown in Table 1. This species of lguanura has leaves which do not absciss but persist on the trunk until they rot. From the ninth leaf onward the decaying leaves turn pale brown, droop but are still attached to the plant by the very fibrous leaf base. Eventually the lamina falls leaving the persistent leaf base, A few plants have up to 12 leaves in the crown.
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spelling upm.eprints-402102015-10-28T02:36:01Z http://psasir.upm.edu.my/id/eprint/40210/ Observations on leaf color, epiphyll cover, and damage on Malayan Iguanura walliehiana Kiew, Ruth lguanura wallichiana (Wall. ex Mart.) Hook.f (formerly known as I. geonomaeformis Mart.) is a common palm throughout the lowlands of Malaya (Kiew 1972a. 1976) growing to about 2 m in height and bearing a crown of about seven to nine leaves. A population of 18 plants of Iguanura wallichiana subsp. malaccensis (Becc.) Kiew in the Gombak Field Station, Selangor was observed over a period of 15 months and the age of leaves derived from weekly measurements of increase in length of the developing apical leaf until expansion and the persistence of the old leaves on the stem (Kiew 1972b). Leaf production is regular and the average interval between leaf production is seven months with a range of S~-10~ months. The time span (plastochrone) between the emergence of the sword leaf (unexpanded leaf) and the expansion of the first leaf (leaf I) was found to be seven months; successive leaves down the trunk are increasingly older by seven months. As shown in Table 1. This species of lguanura has leaves which do not absciss but persist on the trunk until they rot. From the ninth leaf onward the decaying leaves turn pale brown, droop but are still attached to the plant by the very fibrous leaf base. Eventually the lamina falls leaving the persistent leaf base, A few plants have up to 12 leaves in the crown. International Palm Society 1982 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/40210/1/Observations%20on%20leaf%20color%2C%20epiphyll%20cover%2C%20and%20damage%20on%20malayan%20iguanura%20walliehiana.pdf Kiew, Ruth (1982) Observations on leaf color, epiphyll cover, and damage on Malayan Iguanura walliehiana. Principes, 26 (4). pp. 200-204. ISSN 0032-8480
spellingShingle Kiew, Ruth
Observations on leaf color, epiphyll cover, and damage on Malayan Iguanura walliehiana
title Observations on leaf color, epiphyll cover, and damage on Malayan Iguanura walliehiana
title_full Observations on leaf color, epiphyll cover, and damage on Malayan Iguanura walliehiana
title_fullStr Observations on leaf color, epiphyll cover, and damage on Malayan Iguanura walliehiana
title_full_unstemmed Observations on leaf color, epiphyll cover, and damage on Malayan Iguanura walliehiana
title_short Observations on leaf color, epiphyll cover, and damage on Malayan Iguanura walliehiana
title_sort observations on leaf color epiphyll cover and damage on malayan iguanura walliehiana
url http://psasir.upm.edu.my/id/eprint/40210/1/Observations%20on%20leaf%20color%2C%20epiphyll%20cover%2C%20and%20damage%20on%20malayan%20iguanura%20walliehiana.pdf
work_keys_str_mv AT kiewruth observationsonleafcolorepiphyllcoveranddamageonmalayaniguanurawalliehiana