Asplenium nidus

Asplenium nidus L.

HABIT 

Plants 1–1.2 m tall. Rhizome erect, thick and short, woody. FROND apex scaly; scales dark to purplish brown, narrowly triangular to linear-subulate, margin ciliate to fimbriate. Fronds caespitose; stipe pale brown, up to 5 cm, woody, base densely scaly; lamina lanceolate, 90–120 × (8–)9–15 cm, gradually decurrent on stipe, base cuneate, margin entire, apex acute to acuminate. Midrib raised and semiterete on upper adaxial side but flat abaxially, subglabrous, grayish to pale brown; veinlets simple or forked, parallel and connected at their apex to marginal vein. Fronds papery or thinly leathery, when dry grayish green, glabrous. Sori linear, 3–5 cm, on acroscopic side of veinlets, running from near their base up to 1/2 of their length; basal part of lamina usually sterile; indusia brownish, linear, thickly membranous, entire, persistent. Spores with lophate (costate to cristate) perispore. 

Asplenium nidus L. Photo from Floristic diversity of Hon Ba Nature Reserve, Vietnam Copyright © 2014 Korea National Arboretum

ECOLOGY 

clustered on tree trunks or rocks in rain forests.

LOCAL NAME

Tổ điểu thật

DISTRIBUTION

Cambodia, China, India, Indonesia, Japan, Laos, Malaysia, Myanmar, Sri Lanka, Vietnam: Lao Cai (Sa Pa), Cao Bang, Lang Son, Quang Binh (Minh Hoa: Thuong Hoa, Ke Bang), Gia Lai (Kon Ka Kinh), Khanh Hoa, Lam Dong (Bi Dup), Ninh Thuan (Ca Na), Ba Ria-Vung Tau (Nui Dinh, Con Dao).

Soure:

Van Hai, Do & Quang, Bui & Chinh, Vu & Thi Thanh Nguyen, Huong & Hoan, Duong & Diep, Tran & Thai, Tran & Choudhary, Ritesh & Lee, Changyoung & park, Sang-Hong & Kim, Jinki & Bae, Doo & Lee, Chaehee & lee, You & Oh, Seung Hwan & Shin, Chang-Ho & Choi, Kyung & Yang, Jong-Cheol & Hanh, Nguyen & Nong, Luu. (2014). Floristic diversity of Hon Ba Nature Reserve, Vietnam