Adiantopsis senae (Baker) Schuettp. & A.Davila

Kessler, Michael, Smith, Alan R. & Prado, Jefferson, 2017, Prodromus of a fern flora for Bolivia. XXVII. Pteridaceae, Phytotaxa 332 (3), pp. 201-250 : 204-205

Adiantopsis senae (Baker) Schuettp. & A.Davila , Taxon 63(2): 262. 2014.

= Adiantum senae Baker, J. Bot. 1885: 217 . 1885.

Range: — Bolivia (SC) and Brazil.

Ecology: —Rare (known from a single collection); open vegetation in lowland regions, on sandy soils of rocky areas; 400 m.

Notes: —Rachises slightly flexuous, glabrous; plants ca. 5–7 cm tall, with pinnae 2–4 × 1–3 mm, articulate, rhombic or cuneate, stalked, stalks very thin (hairlike), less than 1 mm long, with the color of stalks stopping abruptly at pinna bases; pinnae glabrous on both surfaces and idioblasts lacking, terminal pinnae similar to lateral ones, sterile margins slightly lobate or cleft; sori 1 or 2 per pinna, borne distally; and indusia rounded, glabrous. This species has historically been treated as an Adiantum , but recent phylogenetic data show it is more properly placed in Adiantopsis ( Schuettpelz et al. 2014) . In Adiantum , the sporangia are borne on the underside of the indusia, whereas in Adiantopsis senae , the sporangia are attached at the indusial bases.