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Athyriaceae | Family List | Athyriaceae | Athyrium

Athyrium oppositipinnum Hayata


Habitat: Ridge, Edge of forest or side by the trail

Leaf shape: Broad-Lanceolate

Apex of Leaf: Acuminate

Leaf Division: Bipinnate

Length of Stipe: 40 (10-60)

Length of Lamina: 50 (25-100)

Width of Lamina: 40 (20-80)

Stipe Color: Green

Free Pinnulate in basal Pinnae: No

Form of basal Pinnulate arrangement: Opposite

Apex of Pinnae: Acute

Petioled in pinnae: Sessile

Length of Lowest Pinnae: 15 (10-40)

Wideth of Lowest Pinnae: 4 (3-5)

Lowest pinnae with enlarged basiscopic pinnules (more than 3 mm): No, less than 3 mm

Apex of terminal fragment: Round or Obtuse

Margin of terminal fragment: Crenate

Type of Basal of Pinnule: Broadly adnate

Anterior pinna or pinnule auriculate: not auricaulate

Lowest Pinnae with shorter basal pinnule: No, basal pinnule similar with next two pinnules

Second Lowest Pinnae with shorter basal pinnule: No, Basal Pinnulate similar with next two

Abaxial Surface of Rachis with Unicellular Hairs ?: No, glabrous

Abaxial Surface of Rachis with Gland Hairs?: No, there is no gland hairs on it

Abaxial Surface of Coaste with Unicellular Hairs ?: No, there is no unicellular hairs on costae (glabrous)

Type of Adaxial Costae Spines: Short spines

Spines Existing on Adaxial Costulate: No, spines Absent on costulate

Type of Scales on Basal Stipe: Lanceolate

Color of Scales on Basal Stipe: Yellow Brown

With Adventitious Bud near the Apex of Leave: No, adventitious buds absent

Sori Shape: Short straight, Curved

Sori Position: Closed to midrib

Type of Rhizome: Short Erect

Geographic Distribution: Endermic in Taiwan

Altitude: 2500 (1600-3100)


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