Lellingeria, sensu Labiak, 2013

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 Lellingeria

1 Fertile median pinnae <8(9) mm long .............................................................................................................................................. 2

– Fertile median pinnae>(8) 10 mm long ............................................................................................................................................ 5

2 Pinnae acroscopically gibbous ................................................................................................................................... L. phlegmaria

– Pinnae entire or nearly so ................................................................................................................................................................. 3

3 Rhizome scales <0.5 mm long ..................................................................................................................................... L. simacensis

– Rhizome scales> 1.5 mm long .......................................................................................................................................................... 4

4 Hairs on rachises brown, thick; epiphytic, mature plants often pendent ........................................................................ L. suspensa

– Hairs on rachises white, thin; terrestrial and saxicolous, mature plants erect ................................................................. L. ciliolepis

5 Pinna bases slightly constricted, distant, rachises partly free on both sides ....................................................... L. pseudocapillaris

– Pinna bases broadly adnate, confluent, rachises not free ................................................................................................................. 6

6 Sinuses between pinnae up to about as wide as the pinna width ...................................................................................................... 7

– Sinuses between pinnae at least 1.5 times as wide as the pinna width ............................................................................................. 9

7 Mature leaves> 15 cm long ................................................................................................................................................. L. major

– Mature leaves <10(15) cm long ........................................................................................................................................................ 8

8 Rachises glabrous or nearly so; proximal pinnae triangular ........................................................................................ L. subsessilis

– Rachises densely hairy; proximal pinnae rudimentary ....................................................................................... L. pseudotenuicula

9 Pinnae strongly ascending, set ca. 45° to rachises .......................................................................................................................... 10

– Pinnae slightly ascending, set ca. 60–80° to rachises ..................................................................................................................... 11

10 Mature leaves (25)30–35(55) cm long; many pinnae elongated, with long, attenuate apical portions ................. L. flagellipinnata

– Mature leaves 10–15(20) cm long; few, if any, pinnae elongated, if so, not apically attenuate ................................... L. subsessilis

11 Rachises glabrescent, at least on one side ...................................................................................................................... L. jimenezii

– Rachises with dense hairs on both sides ......................................................................................................................................... 12

12 Rhizome scales 4–5 mm long; fronds 30–40 cm long; rachises only slightly pubescent abaxially .................................... L. affinis

– Rhizome scales 2–4 mm long; fronds 12–15(25) cm long; rachises conspicuously pubescent abaxially ..................... L. apiculata