Pityrogramma

Kessler, Michael, Smith, Alan R. & Prado, Jefferson, 2017, Prodromus of a fern flora for Bolivia. XXVII. Pteridaceae, Phytotaxa 332 (3), pp. 201-250 : 223

publication ID

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

persistent identifier

https://treatment.plazi.org/id/038F87DD-FFFA-7939-FF49-FD7AFA1AFBF3

treatment provided by

Felipe

scientific name

Pityrogramma
status

 

Key to the Bolivian species of Pityrogramma View in CoL

1 Fronds, small, <15 cm long; blades deltate, <10 cm long; stipes <1 mm thick; blades lacking farina and hairs abaxially ............... ................................................................................................................................................................................... P. chaerophylla View in CoL

- Fronds larger,> 25 cm long; blades narrowly deltate to oblong-deltate,> 20 cm long; stipes> 1 mm thick; blades usually with farina abaxially, if farina lacking then moderately hairy ............................................................................................................................ 2

2 Distal pinnae entire, linear or narrowly lanceolate .......................................................................................................... P. trifoliata View in CoL

- Distal pinnae pinnately lobed or divided, narrowly triangular ......................................................................................................... 3

3 Blades abaxially hairy, lacking farina ............................................................................................................................. P. ochracea View in CoL

- Blades abaxially without hairs, usually farinose .............................................................................................................................. 4

4 Rachises stramineous to pale reddish brown .............................................................................................................. P. chrysoconia View in CoL

- Rachises lustrous brown to atropurpureous ...................................................................................................................................... 5

5 Basal pinnae equilateral, not elongated on the basiscopic sides; distal pinnae and pinnules ascending .......................................... 6

- Basal pinnae inequilateral, elongated on the basiscopic sides; distal pinnae and pinnules perpendicular to their axes .................. 7

6 Farina bright yellow to yellow-orange ............................................................................................................... P. austroamericana View in CoL

- Farina white ............................................................................................................................................................... P. calomelanos View in CoL

7 Farina white to pale yellow ................................................................................................................................................ P. ebenea View in CoL

- Farina bright yellow to yellow-orange ........................................................................................................................... P. presliana View in CoL

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