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Athyrium cryptogrammoides Hayata


Athyrium cryptogrammoides
Athyrium cryptogrammoides Hayata

Credit: Yea-chen Liu

Rhizome stout, ascending, covered with persistent stipe bases, scales thin, entire, pale brown to brown, ovate-lanceolate. Stipes 10-18 cm long, stramineous, scaly at base, sparsely scaly upwards; lamina finely dissected, to 25 cm long, by 12 cm wide, lanceolate, trupinnate; rachis stramineous; rachillae narrowly winged; pinnae ascending, with vert short petioles, linear-lanceolate, attenuate; pinnules usually anadromous, cut to costa, lobes ending in sharp teeth; upper surface with long spine-like processes along costules. Sori often covering the entire undersurface when mature and protruding past the narrow lobes of the pinnules; indusia oblong or reniform.

Habitat: Edge of forest or side by the trail

Leaf shape: Deltoid

Apex of Leaf: Acuminate

Leaf Division: Tripinnate and more complex

Length of Stipe: 15 (10-30)

Length of Lamina: 25 (20-45)

Width of Lamina: 20 (15-30)

Stipe Color: Stramineous

Free Pinnulate in basal Pinnae: Yes

Form of basal Pinnulate arrangement: Anadromous

Apex of Pinnae: Acuminate

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

Length of Lowest Pinnae: 15 (12-25)

Wideth of Lowest Pinnae: 7 (5-10)

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

Apex of terminal fragment: Acuminate

Margin of terminal fragment: Deep Lobed

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: Long-soft spines

Spines Existing on Adaxial Costulate: Yes, spines Existing on costulate

Type of Scales on Basal Stipe: Ovate

Color of Scales on Basal Stipe: Yellow Brown

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

Sori Shape: Short straight

Sori Position: Closed to midrib

Spore Surface Type: Cristate-Retate Type

Type of Rhizome: Short Erect

Geographic Distribution: East Asia

Altitude: 2800 (1900-3000)


Related Objects  
  • Athyrium cryptogrammoides Hayata (Yea-chen Liu)
  • Image/JPEG

    Flora of China  
  • Illustration
  • Illustration

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