Alansmia

Smith, Alan R., Kessler, Michael, León, Blanca, Almeida, Thaís Elias, Jiménez-Pérez, Iván & Lehnert, Marcus, 2018, Prodromus of a fern flora for Bolivia. XL. Polypodiaceae, Phytotaxa 354 (1), pp. 448-450 : 448-450

Key to the Bolivian species of Alansmia

1 Blades 1-pinnate and 1–2-dichotomously forked ................................................................................................... A. heteromorpha

– Blades pinnatisect or 1-pinnate-pinnatisect or more divided, but not dichotomously forking ........................................................ 2

2 Blades 1-pinnate-pinnatisect to 2-pinnate, occasionally 2-pinnate-pinnatifid ................................................................ A. immixta

– Blades pinnatisect ............................................................................................................................................................................. 3

3 Rhizome scales lacking ..................................................................................................................................................... A. elastica

– Rhizome scales present ..................................................................................................................................................................... 4

4 Blade surfaces abaxially with bifurcate and basally stellate, conspicuously branched setae between the veins, in some cases also with arachnoid hairs ......................................................................................................................................................................... 5

– Blade surfaces abaxially and adaxially glabrous between the veins or mainly with simple setae, rarely with inconspicuous, scattered, bifurcate setae ................................................................................................................................................................................... 6

5 Rachises and costae abaxially with simple to stellate, hyaline to castaneous-red setae; fiddleheads with yellowish or castaneousorangish setae ................................................................................................................................................................ A. diaphana

– Rachises and costae abaxially with stellate, deep red to atropurpureous setae; fiddleheads sometimes with conspicuous dark setae ............................................................................................................................................................................................... A. stella

6 Sporangia glabrous or with one seta per sporangium; plants lacking sericeous, whitish, tubular-globose hairs ............ A. contacta

– Sporangia setose, with several setae per sporangium; tubular-globose hairs present or absent ....................................................... 7

7 Blade surfaces, petioles, rachises, and/or receptacles with irregularly distributed, whitish, sericeous, globose to tubular, glandular hairs (these sometimes present only on a small part of the blade); pinnae linear to linear-deltate, 0.3–0.5 cm wide ........... A. laxa

– Plants lacking whitish, tubular or globose hairs; pinnae 0.2–1 cm wide ......................................................................................... 8

8 Pinnae 0.2–0.3 × 0.3–0.4(0.9) cm, circular or ovate, often strongly gibbose; leaves 5–20 cm long .................................. A. senilis

– Pinnae 0.2–0.8(1) × 0.8–2(4) cm, oblong deltate to linear deltate; leaves 20–60 cm long ................................................ A. smithii