Volume 3 > Part 4 > Year 1989 > Page 546 > Polypodiaceae > Drynaria

3. Drynaria quercifolia (L.) J.Sm.wfo-0001115919

J. Bot. 3: 398. 1841; Bedd., Handb. Ferns Brit. India: 341. f. 191. 1883; E.Smith., J. Siam Soc. Nat. Hist. Suppl. 8: 6. 1929; C.Chr., Contr. U.S. Natl. Herb. 26: 335. 1931; Tardieu & C.Chr. in Fl. Indo-Chine 7(2): 518. 1941; Holttum, Rev. Fl. Malaya 2: 182. f. 88. 1955; Dansk Bot. Ark. 23: 231. 1965; Tagawa & K.Iwats., S.E. Asian Stud. 3(3): 77. 1965; 5: 59. 1967.— Polypodium quercifolium L., Sp. Pl. 2: 1087. 1753. Plate III: 4.

Accepted Name : This is currently accepted.

Description : Rhizome creeping, about 1.5 cm diam., densely scaly; scales dark brown, gradually narrowing from base to tailed apex, up to 1.8 cm long, 1.3 mm broad, the margin paler and densely toothed. Nest-leaves sessile, ovate, up to 32 by about 20 cm, shallowly lobed; lobes close, 5 by 3 cm, rounded to moderately acute at apex, entire. Foliage-leaves: stipes about 25 cm long, stramineous, very narrowly winged throughout, densely scaly at base with those like rhizome-scales; laminae oblong to narrower, up to 80 by about 50 cm, deeply pinnatifid, continuous to the next ones by rather broad wings more than 1 cm in breadth; lobes ascending, gradually narrowing from base to acute or acuminate apex, entire and more or less crisped at margin; veins distinct on both surfaces, finely anastomosing with more than 10 rows of areoles between main veins; coriaceous, shining pale green, glabrous. Sori round or oblong, two rows between adjacent main veins.

Thailand : NORTHERN: Chiang Rai, Chiang Mai (Doi Saket), Phitsanulok (Thung Salaeng luang), Tak; NORTH-EASTERN: Nong Khai; SOUTH-EASTERN: Chanthaburi (Khao Sabap, Makham), Chon Buri (Si Racha, Ko Sichang), Trat (Ban Saphan Hin); SOUTH-WESTERN: Kanchanaburi (Sai Yok, Wangka, Thung Kang Yang), Prachup Khiri Khan (Huai Yang, Bang Saphan); PENINSULAR: Phangnga (Takua Thung), Krabi, Surat Thani (Ko Tao, Ban Don), Nakhon Si Thammarat (Khao Luang), Phuket (Ban Ma Phrao), Phatthalung (Ko Si-Ko Ha), Trang, Satun, Yala (Bannang Sata).

Distribution : Sri Lanka, India to S China and Indohina, Malesia throughout to Fiji and tropical Australia.

Ecology : On rather dry rocks on hillsides in light shade or at edge of forests, fairly common at low altitudes.

Vernacular : Kratae tai mai (กระแตไต่ไม้)(Central); Kut kha hok (กูดขาฮอก), chao-wa-na (เช้าวะนะ), phu-dong khae (พุดองแคระ), dao-ka-lo (เดากาโละ)(Karen-Northern).

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