Volume 3 > Part 2 > Year 1989 > Page 197–198 > Parkeriaceae > Doryopteris

Doryopteris ludens (Wall. ex Hook.) J.Sm.wfo-0001124010

Hist. Fil.: 289. 1875; Bedd., Handb. Ferns Brit. India: 120. f. 61. 1883; C.Chr., Contr. U.S. Natl. Herb. 26: 333. 1931; Tardieu & C.Chr. In Fl. Indo-Chine 7(2): 176. f. 21, 1. 1940; Tryon, Contr. Gray Herb. 143: 60. pl. 8 B, map 11. 1942; Holttum, Rev. Fl. Malaya 2: 594. f. 349. 1955; Dansk Bot. Ark. 23: 243. 1965; Tagawa & K.Iwats., S.E. Asian Stud. 5: 109. 1967.— Pteris ludens Wall. ex Hook., Sp. Fil. 2: 210. 1858.

Accepted Name : Hemionitis ludens (Wall. ex Hook.) Christenh.
Global Fl. 4: 17. 2018.

Description : Rhizome long-creeping, about 3 mm diam., bearing distant stipes, covered with scales; scales linear-subulate, 3–4 mm long, distinctly bicolored, entire, glabrous. Stipe nearly black, polished, scaly at base, sparsely hairy upwards, 20–50 cm long. Frond dimorphic; sterile lamina smaller and less lobed, 15–20 by 10–20 cm, pinnatifid with usually 5 lobes, the apical lobe the largest, or in larger fronds with a few pairs of lobes, the basal lobes the largest, with a few secondary lobes; lobes oblong-subdeltoid to triangular, acute at apex, entire or slightly waved, with distinct main veins; veins copiously reticulate without included veinlets; papyraceous, glabrous. Fertile lamina up to 20 cm long and wide, subdeltoid in outline, deeply pinnatisect, usually with three pairs of lobes, the lowest pair the largest, usually with one or two secondary lobes; lobes linear or linear-subtriangular, caudately acuminate at apex, entire, 1–2 cm broad, up to 10 cm long; main veins distinct, black. Sori continuous along the margin of fronds, a very short interuption at apices of lobes, covered by thin reflexed margin.

Thailand : NORTHERN: Chiang Rai (Doi Tham Tu Pu), Chiang Mai (Pong Nam Khao), Mae Hong Son (Doi Tan Ma Keng), Lampang (Mae Somai), Phrae (Ban Pak Tawan), Tak (Lan Sang), Nakhon Sawan (Mae Wong); NORTH-EASTERN: Loei (Phu Luang); EASTERN: Nakhon Ratchasima (Pak Thong Chai); CENTRAL: Nakhon Nayok (Khao Yai); SOUTH-EASTERN: Chon Buri (Si Racha), Chanthaburi (Khao Soi Dao, Pong Nam Ron); SOUTH-WESTERN: Kanchanaburi (Khao Nam Tok, Sai Yok, Thung Kang Yang Hills, Koeng Chada), Ratchaburi, Prachuap Khiri Khan (Sam Roi Yot, Thap Sakae, Bang Saphan); PENINSULAR: Chumphon (Ko Wiang, Thap Li, Tha Ko), Nakhon Si Thammarat (Thung Song), Phangnga (Khao Suang, Thap Put, Takua Thung), Satun, Yala (Bannang Sata), Trang (Nam Thai).

Distribution : N India (type), S China, Indochina and throughout Malesia.

Ecology : Terrestrial in tropical or evergreen forests at low or medium altitudes.

Vernacular : Kaprok wao (กะปรอกว่าว)(Southeastern); kut hu kwao (กูดฮู้กวาว)(Northern); paen tako ( แพนตาโก)(Peninsular); foen rachini (เฟินราชินี)(Central).

Notes: Doryopteris concolor (Langsd. & Fisch.) Kuhn is also known from tropical Asia, including Annam, but not Thailand. It differs in having bipinnatipartite fronds with free venation.

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