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Lewinskya graphiomitria (Müll. Hal. ex Beckett) F. Lara, Garilleti & Goffinet, hitherto considered a New Zealand endemic species, has recently been repeatedly found at different localities in China, thereby representing an intriguing example of a remote intercontinental disjunction among the bryophytes. Herein, the current distribution of this species is reviewed and mapped and its disjunct occurrence in the two widely separated areas is discussed. Maps showing the quantification of extrapolated projection areas for L. graphiomitria are also presented. A possible way of its migration from New Zealand to Asia or vice versa is explained.

Skoupa, Z., Ochyra, R., Guo, S.-L., Sulayman, M. & Plasek, V. 2018. Three remarkable additions of Orthotrichum species (Orthotrichaceae) to the moss flora of China. - Herzogia 31: 88–100.Three species of the narrowly constituted moss genus Orthotrichum are reported for the first time from China. Two of these, O. moravicum and O. scanicum, have been found in the Xinjiang Uyghur Autonomous Region. The third species, O. rogeri, was detected in Qinghai Province and at the same time this is the first discovery of it in Central Asia. Ecological and distributional details of the newly recorded species are provided and their local distribution in China is mapped. Considering the present records, Orthotrichum in a narrow sense consists of 30 species in China.

Skoupa, Z., Ochyra, R., Guo, S.-L., Sulayman, M. & Plasek, V. 2017. Distributional novelties for Lewinskya, Nyholmiella and Orthotrichum (Orthotrichaceae) in China. — Herzogia 30: 58–73.Lewinskya vladikavkana and Orthotrichum alpestre are recorded for the first time from China and 14 species of the genera Lewinskya, Nyholmiella and Orthotrichum are newly reported from various provinces in China, including Gansu, Heilongjiang, Hubei, Hunan, Inner Mongolia, Jiangxi, Jilin, Qinghai, Shaanxi, Shanxi, Shandong, Sichuan, Xinjiang, Xizang, Yunnan and Zhejiang. Distribution and ecology of newly recorded species are briefly discussed. Diversity of the broadly conceived genus Orthotrichum in China is summarised. In total, it currently consists of 43 species in this country, including 15 species of the genus Lewinskya, one of Nyholmiella and 27 of Orthotrichum s.str.

Studies on the bryophyte flora of the Southern Ocean islands and in the Antarctic are briefly reviewed and the current state of knowledge of the moss flora of Îles Kerguelen is discussed. Macrocoma tenue (Hook. & Grev.) Vitt is recorded from the Îles Kerguelen archipelago and this constitutes the first record of the genus Macrocoma (Müll. Hal.) Grout from the Subantarctic. The local plants of the species are characterized and illustrated and their ecology is discussed. Global distribution of M. tenue is reviewed and mapped. It is suggested that the type subspecies of M. tenue is a Gondwanan relictual taxon, which could have evolved on this supercontinent prior to its break-up and, subsequently, it reached Îles Kerguelen where it survived during the Pleistocene glacial epoch.

1. Andreaea flexuosa R.Br.bisContributors: R. Ochyra and N. J. M. GremmenHeard Island, Subantarctica: Eastern slope of Scarlet Hill, 340 m a.s.l., 53°06ʹ18ʺS, 73°38ʹ23ʺE, on red consolidated scoria...

DNA C-values might be one of important indices in the evaluation of angiospermous invasiveness. To test this viewpoint, we compared DNA 1C-values and basic genome sizes in 3,676 angiosperms. The results suggest that: (1) the two nuclear values vary greatly among different groups, e.g., significantly higher in herbs than in trees, in monocots than in dicots, in perennials than in non-perennials; (2) the two nuclear values both have significant effects on plant invasiveness, especially in herbs, dicots, monocots, perennials, non-perennials, diploids, polyploids, Compositae, and Poaceae, while not significant in trees and Fabaceae. Similar to weeds, the two values in crops are low, which suggests that crops may commonly hold higher invasive potential; (3) to evaluate the invasiveness of a given species, the information about ploidy level is necessary, and for polyploids, basic genome sizes are more reliable. For the results suggest that the selection favors polyploids in weeds at least partly because of the downsizing of basic genome size along with polyploidization.

In China, fireweed (Crassocephalum crepioides) is listed as an invasive plant that is also cultivated as a vegetable. To gain a clearer understanding of its invasiveness and rapid spread, we evaluated its seed dispersal ability, and the influences of light, temperature, pH, NaCl stress, moisture content, and storage periods on its seed germination. Its seed dispersal ability is limited. The seed germination of fireweed is inhibited by darkness, temperatures 35°C, and a NaCl solution with a concentration >0.15 mol L−1. The optimal conditions under which nearly all the seeds could germinate are light, with temperatures from 20 to 30°C, and a neutral soil with 40% moisture content. The seeds of fireweed have no apparent dormancy and retain a high viability after room storage for 10 months. Fireweed only has a moderate invasive capacity and its wide distribution in China possibly correlates with its cultivation.