Malaxis monophyllos (L.) Sw.

Kubentayev, Serik A., Efimov, Petr G., Alibekov, Daniyar T., Kupriyanov, Andrey N., Izbastina, Klara S., Khalymbetova, Aizhan E. & Perezhogin, Yuri V., 2023, Review of Orchidaceae of the northern part of Kazakhstan, PhytoKeys 229, pp. 185-213 : 185

Malaxis monophyllos (L.) Sw.

Distribution in adjacent reg.

Russia (European Russia, Ural, Siberia).

Specimens examined and literature records.

Tobol-Ishim: Kostanay Region: Mendykara District: Borovskaya water protection forest dacha, 17 Jul 1925, Rusanov 1553 (LE!); near Borovskoye ( Pugachev 1994); near Kamenskural’skoe ( Pugachev and Masyukova 1969); Auliekol District: near Kalininskoye ( Pugachev 1994). Eastern Upland: Pavlodar Region: Bayanaul District: Bayanaul Mountains, 30 Jun 1913, Kucherovskaya s.n.. (LE!); same loc., 10 km west of Bayan-Aul, 19 Jul 1959, Denisova 436 (LE!); same loc., 19 Jul 1959, Denisova 427 (MW 0816997!). Karkaraly: Karaganda Region: Karkaraly District: Zhisil’tau Mountains, near Egindibulak, 19 Jul 1992, Kupriyanov s.n.. (KG!).

Habitat and ecology.

Grassy birch forests, near lakes, along forest streams.

Phenology.

Flowering in Jun-Jul; fruiting in Aug-Sept.

Conservation status.

Not protected. We recommend to include this species in the next edition of the Red Book of Kazakhstan.

Notes.

Forms both with one and with two well-developed leaves occur in Kazakhstan, the latter being recognised as a variety of M. monophyllos var. diphyllos (Cham.) Luer (e.g. by Pavlov 1928). Bayan-Aul and Karkaraly Mts represent the southernmost locality of the species in Central Asia.