Portal de Periódicos da CAPES

Leptodontium (Pottiaceae, Bryophyta), a new genus for Caucasus

2005; KMK Scientific Press Ltd.; Volume: 14; Issue: 1 Linguagem: Inglês

10.15298/arctoa.14.03

2782-201X

Michael S. Ignatov, Aza S. Bersanova, Z. Kh. Kharzinov, Elena A. Ignatova,

Botany and Plant Ecology Studies

Leptodontium flexifolium is reported from the Caucasus, in the Ingushetia Republic.This is a first record of this mainly tropical and subtropical genus in the Caucasus.The differences between L. flexifolium and L. styriacum are discussed and the latter species is synonymized with L. flexifolium. ÐåçþìåLeptodontium flexifolium âûÿâëåí íà Êàâêàçå, â Èíãóøåòèè.Ýòî ïåðâàÿ íàõîäêà ýòîãî â öåëîì òðîïè÷åñêîãî è ñáóòðîïè÷åñêîãî ðîäà íà Êàâêàçå.Îáñóaeäàåòñÿ ïîíèìàíèå îáúåìà âèäà L. flexifolium ðàçíûìè àâòîðàìè è åãî èçìåí÷èâîñòü (êàñàþùàÿñÿ, ãëàâíûì îáðàçîì, ñòðîåíèÿ âûâîäêîâûõ òåë).Leptodontium styriacum îòíåñåí â ñèíîíèìû ê L. flexifolium.The bryological exploration of the Caucasus began in the 19th Century, and Brotherus (1892) provided a quite comprehensive account of Caucasian mosses.However certain regions of Central Caucasus still remain almost totally white spots.This is especially true for Chechenia and partly also for Ingushetia (these before 1991 forming a single Checeno-Ingush Republic).Recent moss collecting in Ingushetia, however, brought a number of interesting findings (Bersanova, in prep.).Here we discuss one of them, the genus Leptodontium.Identification of the genus is a relatively easy, as most species of Leptodontium are large plants with a coarsely serrate leaf margins, not observed in other species of Pottiaceae of the region.The species identity, however, is more problematic.The genus Leptodontium includes 25 to 36 species (Crosby & al., 1999) or 39 species (Zander, 1993); most of them distributed in the tropics.There are no records of Leptodontium in Asian