伊藤氏莲座蕨 yi teng shi lian zuo jue

Archangiopteris itoi W. C. Shieh, J. Jap. Bot. 45: 165. 1970.

Fronds ca. 150 cm; stipes 60-100 cm, with 1 naked pulvinus. Laminae once pinnate; pinnae 9-12 pairs, oblong, 25-30 × 3-3.5 cm, bases cuneate, margins undulate, apices caudate. Veins obvious, false veins short (or absent). Sori medial, ca. 1 cm, with 40-90 sporangia; multicellular paraphyses present. Exospores with spinulose ornamentation.

● Extremely rare; 400-600 m. C and N Taiwan (Nantou, Taibei).

According to reviewer Ralf Knapp, the false veins are missing in some plants of C Taiwan.