The given variable is not an array and contains a null value. Cyathea alleniae Holttum | Cyatheaceae | Malaysia Biodiversity Information System (MyBIS)
 
 
 
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Cyathea alleniae

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CR
Critically Endangered
Malaysia Plant Red List
Peninsular Malaysia 2021
CR
Critically Endangered
Peninsular Malaysia Plant Red List *
2020
* Assessed according to the IUCN Red List Categories & Criteria Version 3.1
QR Code
SSN 09541
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Taxonomy

The taxonomic status is pending for approval

Description
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Cyathea alleniae is a species of tree fern belongs to family Cyatheaceae. It is endemic to Peninsular Malaysia, where it can be found in forest margins on steep ground or by a river at an altitude of about 1,200 m (Parris et al., 2020).

This fern has an erect trunk which can grow up to 4.5 m tall and 15 cm in diameter. The trunk is usually unbranched but may branch to form several small crowns of fronds. The fronds are either bipinnate or tripinnate that can reach 18 cm long. The main crown of the fronds is its sori and scales. Sori occur near the midvein of fertile pinnules and are protected by firm, brown indusia that resemble the appearance of scales. The stipe is at least 30 cm, near the base with many thick conical spines measuring to 2 mm long (Parris et al., 2020).

Assessment
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Year Published Assessment Red List Category Version
2021 Malaysia Plant Red List
Critically Endangered (CR)
Peninsular Malaysia
N/A
2020 Peninsular Malaysia Plant Red List
Critically Endangered (CR)
N/A
2010 Malaysia Plant Red List
Not Evaluated (NE)
N/A

References
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Book
  1. Parris, B.S., Kiew, R., Chung, R.C.K. & Cheah, Y.H. (2020). Flora of Peninsular Malaysia Series I: Ferns and Lycophytes, Volume 3. Forest Research Institute Malaysia (FRIM), Malaysia. pp. 1-307.
  2. Yong, W.S.Y., Chua, L.S.L., Lau, K.H., Siti-Nur Fatinah, K., Cheah, Y.H., Yao, T.L., Rafidah, A.R., Lim, C.L., Syahida-Emiza, S., Ummul Nazrah, A.R., Nor-Ezzawanis, A.T., Chew, M.Y., Siti Munirah, M.Y., Julius, A., Phoon, S.N., Sam, Y.Y., Nadiah, I., Ong, P.T., Sarah Nabila, R., Suhaida, M., Muhammad-Alif Azyraf, A., Siti Eryani, S., Yap, J.W., Jutta, M., Azeman, S., Salleh, N., Kiew, R. & Chung, R.C.K. (2021). Malaysia Red List: Plants of Peninsular Malaysia, Volume 1, Issue/No. 1. Forest Research Institute Malaysia (FRIM), Malaysia. pp. 107.

Publications
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Flora of Peninsular Malaysia Series I: Ferns and Lycophytes, Volume 3 (February 2020)

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31 records

Acknowledgements :- Ms. Norazah Binti Norddin, Ms. Nur Farahin Binti Mustafa, Ms. Nurfadzilah Bt Azmi, Mrs. Nurfarhana Hizan Binti Hijas & Ms. Nurul Aliya Imra Asyikin Binti Abd Murad

Species Citation :- Cyathea alleniae. Malaysia Biodiversity Information System (MyBIS). Accessed via https://www.mybis.gov.my/sp/9541. [Retrieved 18 April 2024].

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