Class: Pteridopsida. Order: Polypodiales. Family: Polypodiaceae. Genus: Drynaria. Species: D. quercifolia. Common Names: Oak-leaf fern. Status: Common. Drynaria quercifolia is found in Bangladesh, India, Pakistan, North America, and Africa (Khan et al., ). The rhizome of D. quercifolia can be cm. Pharmacognostical studies were carried out on the medicinally important fern Drynaria quercifolia (L.) (Polypodiaceae), which is used to cure various.
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Rhizome 2 cm thick, the younger portions densely covered with dark brown scales. Scales of about 2 cm long, base peltate, narrowing to the apex and edge finely toothed. Nest fronds to 40 x 30 cm, lobed quervifolia the lobes broad and rounded.
Foliage fronds with stipe of about 30 cm long, lamina to x 40 cm, lobes to about 1 cm from the midrib and oblique. Sori in a regular row on each side of the main vein, round and ddrynaria mm wide.
Epiphytic on tree trunk and large branches, the creeping rhizome is anchored to the substratum by the many roots growing from the ventral surface. Nest fronds overlap along the qurecifolia, turning brown with age but not falling off.
Foliage fronds grow well beyond the nest fronds, turning brown and detaching from the main midrib with age, to eventually leave a bare brown stalk made up of the frond’s stipe and midrib. This fern grows as an epiphyte in lowland forest, secondary forest, urban areas and wayside trees. For an account of the life history of a fern, see Drynaira piloselloides. Plant resources of South-East Asia No.
India Biodiversity Portal
Ferns and fern allies. Prosea Foundation, Borgor, Indonesia. A revised flora of Malaya.
II Ferns of Malaya. Printing Office, Singapore 2nd ed. Ferns of the tropics. Times Editions-Marshall Cavendish, Singapore. The Digital Nature Archive of Singapore is built up by the help of various people: If you wish to contribute any images, documents, videos or other forms of media, or if you have any queries…. Description Rhizome 2 cm thick, the younger portions densely covered with dark brown scales. Read more about the Polypodiales order. Read more about the Polypodiaceae family.
General Biology Epiphytic on tree trunk and large branches, the creeping rhizome is anchored to the substratum by the many roots growing from the ventral surface.
Life Cycle For an account of the life history of a fern, see Pyrrosia piloselloides. References de Winter, W. Related People Wee Yeow Chin.
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