Jamesonia (A. Tryon, 1962)

Kessler, Michael, Smith, Alan R. & Prado, Jefferson, 2017, Prodromus of a fern flora for Bolivia. XXVII. Pteridaceae, Phytotaxa 332 (3), pp. 201-250 : 221

publication ID

https://doi.org/ 10.11646/phytotaxa.332.3.1

persistent identifier

https://treatment.plazi.org/id/038F87DD-FFF8-793B-FF49-FA52FA1AF8F8

treatment provided by

Felipe

scientific name

Jamesonia
status

 

Key to the Bolivian species of Jamesonia View in CoL

1 Blade apices much narrower than the mid-blades, worm-like ................................................................................... J. scammanae View in CoL

- Blade apices as broad as or broader than the mid-blades ................................................................................................................. 2

2 Rachis hairs dark reddish brown, only moderately dense even at the apices, <50% as long as the pinnae; pinnae in the plane of the blade ............................................................................................................................................................................. J. blepharum View in CoL

- Rachis hairs yellowish to dark orange, dense at least at the apices,>50% as long as the pinnae; pinnae usually canted perpendicular to the plane of the blade .................................................................................................................................................................... 3

3 Inrolled blade apices 5–9 mm in diameter ....................................................................................................................................... 4

- Inrolled blade apices 2–4 mm in diameter ....................................................................................................................................... 5

4 Blades ± the same width throughout; all rachis hairs yellowish ....................................................................................... J. alstonii View in CoL

- Blades continuously widening toward the apices; rachis hairs at apices chestnut, contrasting with the yellowish hairs lower down ........................................................................................................................................................................................... J. goudotii View in CoL

5 Pinnae adaxially with long hairs, especially along the margins .................................................................................... J. peruviana View in CoL

- Pinnae adaxially glabrous or with glandular hairs ........................................................................................................................... 6

6 Pinnae adaxially glabrous ............................................................................................................................................ J. brasiliensis View in CoL

- Pinnae adaxially with glandular hairs ................................................................................................................................ J. scalaris View in CoL

Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF