Andinia subgen. Aenigma (Luer) Karremans & Mark

Wilson, Mark, Frank, Graham S., Jost, Lou, Pridgeon, Alec M., Vieira-Uribe, Sebastian & Karremans, Adam P., 2017, Phylogenetic analysis of Andinia (Pleurothallidinae; Orchidaceae) and a systematic re-circumscription of the genus, Phytotaxa 295 (2), pp. 101-131 : 121

Andinia subgen. Aenigma (Luer) Karremans & Mark Wilson, comb. nov. Bas. Pleurothallis subgen. Aenigma Luer ,

Monogr. Syst. Bot. Missouri Bot. Gard. 20: 26. 1986. Type. Pleurothallis schizopogon Luer, Selbyana 5(2):179.

1979.

Syn. Pleurothallis subgen. Aenigma sect. Aenigmata Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 20: 26. 1986. Type. Pleurothallis schizopogon Luer, Selbyana 5(2):179. 1979.

Plant ascending. Inflorescence loose, successively flowered. Ovary papillose or spiculate (hirsute). Petals conspicuous (not vestigial), subequal to the sepals in most species. Lip three-lobed, with the midlobe reduced and acute-acuminate. Column foot absent. Anther incumbent. Pollinaria with drop-like viscidium. Eight species distributed through the Andean regions of Colombia, Ecuador and Peru ( Fig. 6 ), with an elevational range of 2,000 to 3,000 m ( Fig. 8 ). An example, Andinia schizopogon (Luer) Pridgeon & M.W.Chase , is illustrated ( Fig. 11b ).

Andinia dalstroemii (Luer) Pridgeon & M.W.Chase, Lindleyana 16(4): 251. 2001.

Bas. Pleurothallis dalstroemii Luer, Orchideer 5: 52. 1984.

Andinia hirtzii Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 103: 275. 2005.

Andinia ibex (Luer) Pridgeon & M.W.Chase, Lindleyana 16(4): 251. 2001.

Bas. Pleurothallis ibex Luer, Selbyana 5(2): 168. 1979.

Andinia pentamytera (Luer) Pridgeon & M.W.Chase, Lindleyana 16(4): 251. 2001.

Bas. Pleurothallis pentamytera Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 52: 58. 1994. Andinia pogonion (Luer) Pridgeon & M.W.Chase, Lindleyana 16(4): 251. 2001.

Bas. Pleurothallis pogonion Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 52: 61. 1994. Andinia schizopogon (Luer) Pridgeon & M.W.Chase, Lindleyana 16(4): 251. 2001.

Bas. Pleurothallis schizopogon Luer, Selbyana 5(2): 179. 1979.

Andinia sunchubambensis A.Doucette & Janovec, IOSPE Aug 5, 2016.

Andinia uchucayensis A.Doucette & J.Portilla, Orchids (Lindleyana) 86(1): 72. 2017.

Figures

FIGURE 6. Distributions of clades or proposed subgenera Aenigma, Andinia, Masdevalliantha and Minuscula.

FIGURE 8. Mean elevations and elevational ranges of collections from Tropicos for proposed subgenera Andinia; Aenigma; Masdevalliantha; Minuscula; all four subgenera combined (i.e. excluding Brachycladium); and Brachycladium. Blue triangles represent mean collection elevation (m) and black bar represents elevational range of collections.

FIGURE 11. Representatives of the proposed infrageneric taxa: (a) subgenus Masdevalliantha - Andinia longiserpens (photo credit: Ron Parsons); (b) subgenus Aenigma - Andinia schizopogon; (c) subgenus Andinia - Andinia lappacea; (d) subgenus Minuscula - Andinia trimytera; (e) subgenus Brachycladium section Brachycladae - Andinia nummularia;and (f) subgenus Brachycladiumsection Amplectentes - Andinia montis-rotundi.