LICHEN SPECIES
COLLEMA PULCELLUM AND
C. RYSSOLEUM (
COLLEMATACEAE) IN BAIKAL SIBERIA AND RUSSIA
T.V. Makryi
Central Siberian Botanical Garden, SB RAS, Novosibirsk, Zolotodolinskaya str., 101
makry@nsu.ru
Keywords: лишайники, Collema ryssoleum, C. pulcellum var. pulcellum, f. isidiosum f. nov, C. nigrescens, C. subnigrescens, Сибирь, Дальний Восток, Россия, lichens, Collema ryssoleum, C. pulcellum var. pulcellum, f. isidiosum f. nov, C. nigrescens, C. subnigrescens, Siberia, Far East, Russia
Abstract
The descriptions and localities in Baikal Siberia of two lichen species Collema pulcellum Ach. var. pulcellum and C. ryssoleum (Tuck.) A. Schneid. are provided. A new form C. pulcellum var. pulcellum f. isidiosum Makryi, f. nov. is described. It has been established that literary data about distribution of C. nigrescens (Huds.) DC. and C. subni grescens Degel. in south part of East Siberia and Russian Far East are erroneous. In fact, being widespread species in these regions is C. pulcellum var. pulcellum , while C. nigrescens and C. subnigrescens das not occur at all. Expressed the view that the volume of species C. pulcellum s. l. sensu G. Degelius is too large and poorly correlated with the volumes of other Collema species of Nigrescens -group. Taking into account the signifi cant differences in the morphological and anatomical structure of thalli, shape and size of spores, and character of areas, it would be correct to consider all three varieties (var. pulcellum , var. subnigrescens (Müll. Arg.) Degel., and var. leucopeplum (Tuck.) Degel.) as separate species, as they have been described.
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