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Athyriaceae | Family List | Athyriaceae | Athyrium

Athyrium delavayi H. Christ, Bull. Soc. Fr. 52 Mem. I., 47. 1905.

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

Leaf shape: Deltoid

Apex of Leaf: Abrupt

Leaf Division: Bipinnate

Length of Stipe: 15 (10-20)

Length of Lamina: 40 (25-50)

Width of Lamina: 30 (25-40)

Stipe Color: Purple to Stramineous

Free Pinnulate in basal Pinnae: Yes

Form of basal Pinnulate arrangement: Opposite

Apex of Pinnae: Caudate

Petioled in pinnae: Short Petiole (less than 3 mm), Sessile

Length of Lowest Pinnae: 15 (10-20)

Wideth of Lowest Pinnae: 5 (4-7)

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

Apex of terminal fragment: Acute

Margin of terminal fragment: Serrulate

Type of Basal of Pinnule: Petiolulate

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: Yes, spines Existing on costulate

Type of Scales on Basal Stipe: Lanceolate

Color of Scales on Basal Stipe: Shiny Black

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

Sori Shape: Short straight

Sori Position: Middle of veinlet

Spore Surface Type: Rugate Type

Type of Rhizome: Short Erect

Geographic Distribution: East Asia

Altitude: 2200 (1600-2700)


 

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