雅安茯蕨 ya an fu jue

Plants to 18 cm tall. Rhizomes short and erect, including stipe bases with sparse reddish brown lanceolate, hairy scales and acicular hairs. Stipes 5-6 cm, throughout with acicular hairs; laminae broadly lanceolate, 10-12 × ca. 4 cm, not tapering to bases, 1-pinnate, acuminate at apices; pinnae ca. 10 pairs, alternate except for proximal pair, others ± adnate to rachises; middle pinnae lanceolate and slightly falcate, 2-2.5 × 0.7-0.8 cm, undulate or crenate, shortly acuminate at apices. Veins evident, veinlets 2 pairs per group, proximal pair arising from far above base of costules, acroscopic veinlet reaching sinus. Laminae herbaceous, when dry dark brown, adaxially subglabrous except with sparse, short hairs along costae, abaxially with spreading acicular long hairs along costae and costules. Sori linear, attached on middle on acroscopic veinlet of each group. Sporangia each with 2 or 3 setae near top.

● On rocks in forests; ca. 1000 m. SW Sichuan (Ya’an).