Orchidaceae
Creators: name: Barberena, Felipe Fajardo Villela Antolin
name: Silva, Roberto da
name: Lopes, Rosana Conrado
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae

description: Key to the species of Orchidaceae in PE Chacrinha
1. Epiphytic herbs.
2. One apical leaf; inflorescence lateral, in panicle; sepals and petals maculate ........................................................ ................................................ Trichocentrum pumilum
2. Two apical leaves; inflorescence terminal, in raceme; sepals and petals immaculate............ Cattleya forbesii
1’. Terricolous or rupicolous herbs.
3. Leaves apical.
4. Two leaves ...................................... Maxillaria subulata
4’. One leaf.
5. Leaves maculate; inflorescence lateral; flowers calcarate .................................................... Oeceoclades maculata
5’. Leaves immaculate; inflorescence terminal; flowers ecalcarate.
6. Leaves cylindrical; sepals and petals white-yellowish to yellowish .................................. Brassavola tuberculata
6’. Leaves flat to concave; sepals and petals purple ............. ............................................................ Acianthera limae
3’. Leaves basal in rosette or distributed along the caulome.
7. Leaves reticulate-veined.............. Aspidogyne argentea
7’. Leaves obscurely or distinctly parallel-veined.
8. Leaves membranaceous or chartaceous, convolute (rolled like an umbrella) or plicate (folded like a fan).
9. Leaves plicate, sepals and petals yellow to greenish-yell ow...................................... .......... Cyrtopodium flavum
9’. Leaves convolute, sepals and petals pale green to green.
10. Flowers resupinate; lip trilobed.
11. Leaves sessile; inflorescence glabrous; petals bifid ....... ..................................................... Habenaria leptoceras
11’. Leaves petiolate; inflorescence pilose; petals entire.
12. One to three leaves; flowers calcarate; lip green ............ ........................................................ Eltroplectris triloba
12’. Five leaves; flowers ecalcarate; lip white .................. ...... ................................................. Cyclopogon argyrifolius
10’. Flowers non-resupinate; lip entire.
13. Leaves petiolate, rarely sessile; leaf blade lanceolate or elliptic; inflorescence lax; flowers not overlapping ........ .............................................. Prescottia plantaginifolia
13’. Leaves sessile; leaf blade linear; inflorescence congested; flowers overlapping .............. Prescottia spiranthophylla
8’. Leaves coriaceous, conduplicate (folded along the midrib).
14. Flowers resupinate; sepals and petals green to brownish ............................ Epidendrum ammophilum
14’. Flowers non-resupinate; sepals and petals pink to lilac.
15. Lip with cut-out and multifaceted callus and limited to the center of the disc........................................................ ................................................. Epidendrum secundum
15’. Lip with two basal oval calli and keel-like central callus projected longitudinally over the central lobe ............................................ Epidendrum denticulatum
description: Published as part of Barberena, Felipe Fajardo Villela Antolin, Silva, Roberto da & Lopes, Rosana Conrado, 2022, Copacabana is more than a beach in Rio de Janeiro, Brazil: the orchid flora of Parque Estadual da Chacrinha, pp. 30-40 in Caldasia 44 (1) on page 35, DOI: 10.15446/caldasia.v44n1.88156, http://zenodo.org/record/15265162