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Charophytes of Chile – taxonomy and distribution. Part 2. Subfamily Nitelleae

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Field investigations from all over Chile combined with a check of herbarium collections increased the number of species within the subfamily Nitelleae known for Chile from 6 to 16. Nitella flexilis, N. acuminata, N. clavata , N. bonaërensis, N. lechleri and Tolypella apiculata have been previously recorded from Chile. N. flexilis and N. clavata are common, N. acuminata and N. bonaërensis are rare. Tolypella apiculata was not recorded in our collections. Nitella lechleri, up to now only recorded from its type locality, was found in several sites. Eight species known from other South American countries were recorded in Chile for the first time. Nitella opaca occurred in several sites in the southern part of the country. N. mucronata, N. pygmaea and N. gracilis were found in a few sites, and N. arechavaletae and Tolypella glomerata in one site each in southern Patagonia. N. tenuissima and N. hyalina were recorded from 10 and 22 sites, respectively. Nitella dilatata and N. asagrayana, up to now only described for North (and Central) America were found in one and 33 sites, respectively. For all taxa, records from Chile and surrounding countries are summarized; information is given on type material and identification; images are given for most species. Neither Nitella furcata (s. l.) nor section Migularia, both common in eastern South America, were recorded from Chile. We assume that the Andean high mountain range efficiently prevents dispersal across the continent, but that oospores are transported by waterfowl between North America and Chile. High variability of "diagnostic" characters hampers species determination.
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Document Type: Research Article

Publication date: August 1, 2018

This article was made available online on December 18, 2017 as a Fast Track article with title: "Charophytes of Chile – taxonomy and distribution. Part 2. Subfamily Nitelleae".

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  • Nova Hedwigia is an international journal publishing original, peer-reviewed papers on current issues of taxonomy, morphology, ultrastructure and ecology of all groups of cryptogamic plants, including cyanophytes/cyanobacteria and fungi. The half-tone plates in Nova Hedwigia are known for their high quality, which makes them especially suitable for the reproduction of photomicrographs and scanning and transmission electron micrographs.
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