Orchis L. sect. Robustocalcare, 1753

Calevo, Jacopo, Christenhusz, Maarten J. M. & Fay, Michael F., 2023, A taxonomic overview of Orchis sect. Robustocalcare (Orchidaceae), Phytotaxa 592 (2), pp. 157-162 : 158

publication ID	https://doi.org/ 10.11646/phytotaxa.592.2.10
DOI	https://doi.org/10.5281/zenodo.7841342
persistent identifier	https://treatment.plazi.org/id/03C38792-FF83-FFAD-D2DB-FE42FA67FCE7
treatment provided by	Plazi
scientific name	Orchis L. sect. Robustocalcare
status

Treatment

Orchis L. sect. Robustocalcare View in CoL View at ENA Hautz., Ann. Naturhist. Mus. Wien 81: 35. 1977. (Hautzinger 1977).

Type: Orchis spitzelii Saut. ex W.D.J.Koch

Key to the species of Orchis section Robustocalcare (modified from Kretzschmar et al. 2007)

1a. Lateral sepals spotted adaxially, green or partly green; known from Europe, northern Africa, western Asia ................................... 2

1b. Lateral sepals without spots, partly green; known only from the Canary Islands ........................................................ O. canariensis View in CoL

2a. Side lobes of the lip without or with only a few spots ....................................................................................................................... 3

2b. Side lobes of the lip with spots........................................................................................................................................................... 4

3a. Spur thick and straight........................................................................................................................................................................ 5

3b. Spur bent down and pointed at the end, endemic of Crete .................................................................... O. spitzelii subsp. nitidifolia View in CoL

4a. Lip faintly trilobed, lip creased centrally .................................................................................................. O. spitzelii subsp. spitzelii View in CoL

4b. Lip clearly trilobed, slightly creased centrally, making it appear broader .......................................... O. spitzelii subsp. cazorlensis View in CoL

5a. Inflorescence often lax; leaves weakly spotted; Liguria, Italy.............................................................. O. patens subsp. brevicornis View in CoL

5b. Inflorescence denser; leaves without spots; North Africa ............................................................................. O. patens subsp. patens View in CoL