Volume 3 > Part 2 > Year 1989 > Page 244 > Pteridaceae > Pteris

13. Pteris blumeana J.Agardhwfo-0001255609

Recens. Spec. Pter.: 22. 1839; Tardieu & C.Chr. in Fl. Indo-Chine 7(2): 157. 1940; Tagawa & K.Iwats., S.E. Asian Stud. 5: 81. 1967.— P. quadriaurita var. blumeana (J.Agardh) Bedd., Handb. Ferns Brit. India: 112. 1883; Hosseus, Beih. Bot. Centralbl. 28(2): 366. 1911.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Rhizome short, erect, densely scaly at apex; scales linear, up to 8 by 0.8 mm, dark brown with pale ferrugineous margin. Stipe castaneous to purplish in lower part, stramineous or pale brown upwards, puberulous or glabrescent, up to 80 cm long. Lamina oblong with acute apex, deeply bipinnatisect to bipinnate, about 70 by 35–50 cm; lateral pinnae about 10 pairs, slightly ascending, nearly straight, lanceolate with truncate base, caudately acuminate at apex, up to 25 by 3–5.5 cm, basal pinnae bearing large basiscopic pinnules; rachis and costa grooved on upper surface, more or less hirsute; pinnules patent, straight or slightly falcate, narrowly oblong, rounded to obtuse or rarely moderately acute at apex, up to 30 by 2.5–4.5 mm, entire at margin, adnate and decurrent to the next ones by wings of costa less than 0.5 mm broad; long-spinous on upper surface of costa and costules, upper surface of lamina sparsely pubescent, green, papyraceous; veins forked, distinct on both surfaces. Sori continuous along margin of pinnules except at apex and sinus; indusia pale, thin, transparent.

Thailand : NORTHERN: Chiang Rai, Chiang Mai (Doi Chiang Dao), Lampang, Phitsanulok (Thung Salaeng Luang); NORTH-EASTERN: Loei (Phu Luang); EASTERN: Nakhon Ratchasima (Phu Khieo, Phu Laen Kha); CENTRAL: Nakhon Nayok (Khao Yai); SOUTH-EASTERN: Trat (Ko Chang), Chanthaburi (Khao Sabap); SOUTH-WESTERN: Kanchanaburi (Kroeng Kawia, Thong Phaphum); PENINSULAR: Chumphon (Khao Tong), Yala (Bannang Sata).

Distribution : India, Cochinchina, Malesia (type from Java).

Ecology : On usually dry mountain slopes in deep shade or on humus-rich ground in not very dense forests at low or medium altitudes (but to 1,200 m alt. on Phu Luang).

Vernacular : Foen hiran (เฟินหิรัญ), foen alaba (เฟินอะลาบา)(Central).

Notes: In some plants a distinct white line is apparent along the costae, but no taxonomic significance can be given to this character, which occurs in other species.

E-version notes : For more details see Ferns of Thailand, Laos and Cambodia.