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Athyrium anisopterum Christ


Athyrium anisopterum
Athyrium anisopterum

Credit: Yea-chen Liu

  • Athyrium thysanocarpa Hayata

    Rhizome short, hortizontal, thick; basal scales thin, rusty-brown, narrowly lanceolate, attenuate. Stipes tufted, slender, stramineous, 10-15 cm long, scaly at base; lamina narrowly lanceolate, 10-25 cm long, 3-7 cm wide, apex pinnatifid, bipinnatifid or bipinnate at base; pinnae 3-4 cm long, petiolate, alternate, anadromous; pinnules oblong, obtuse, basal pair free, others adnate, lobed, basal adaxial pinnule usually larger than the abaxial one; rachis and underside bearing scattered linear scales. Sori round; indusia reniform or J-shaped, crossing a veinlet.

    Taiwan, S. China, Himalaya, Indo-China Malasia and Philippines.

    Type from China, Yunnan.

    Habitat: Edge of forest or side by the trail

    Leaf shape: Lanceolate

    Apex of Leaf: Acuminate

    Leaf Division: Pinnate, Bipinnatifid

    Length of Stipe: 10 (5-25)

    Length of Lamina: 20 (10-40)

    Width of Lamina: 10 (5-15)

    Stipe Color: Stramineous

    Free Pinnulate in basal Pinnae: Yes, No

    Form of basal Pinnulate arrangement: Anadromous

    Apex of Pinnae: Acute, Acuminate

    Petioled in pinnae: Obvious Petiole (more than 3 mm)

    Length of Lowest Pinnae: 5 (3-10)

    Wideth of Lowest Pinnae: 2 (1.5-3)

    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: Entire, 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 ?: Yes, densely coved with unicellular hairs (pubescent)

    Abaxial Surface of Rachis with Gland Hairs?: Yes, there are rare gland hairs on rachis

    Abaxial Surface of Coaste with Unicellular Hairs ?: Yes, densely coverd unicellular hairs on costae (pubescent)

    Type of Adaxial Costae Spines: None

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

    Type of Scales on Basal Stipe: Lanceolate

    Color of Scales on Basal Stipe: Dark Brown to Black

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

    Sori Shape: Curved, Reniform

    Sori Position: Middle of veinlet

    Spore Surface Type: Cristate-Retate Type

    Type of Rhizome: Short Erect, Long Erect

    Geographic Distribution: Taiwan - Himalaya

    Altitude: 1500 (1300-2000)


    Related Objects Image Gallery 
  • Web Page
  • Web Page
  • Athyrium anisopterum (Yea-chen Liu)
  • Image/JPEG
  • Document of Athyrium minimum Ching
  • Image/JPEG
  • Document of Athyrium thysanocarpa Hayata
  • Image/JPEG
  • Pinnae shapes (Yea-chen Liu)
  • Image/JPEG
  • Specimen List

    Flora of China  
  • Illustration
  • Illustration
  • Illustration
  • Illustration
  • Illustration
  • Illustration

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