Myosotis refracta Boiss. (Boraginaceae), an unexpected forget-me-not in the Slovene flora

Myosotis refracta Boiss. is reported as a new and unexpected finding for the Slovene flora. The species was found in three collections stored in the Herbarium LJU from south-east Slovenia, in the Kolpa river valley bordering Croatia. All plants thrived under overhanging dolomite rocks. On account of an earlier misidentification, the respective plant community had been described as the association Arabido alpinae- Myosotidetum strictae Accetto 2008, which is here corrected to Arabido alpinae-Myosotidetum refractae Accetto 2008 corr. Strgulc Krajšek, Accetto & Jogan 2016. Myosotis refracta has a disjunct Mediterranean southwest Asian distribution. The reported new localities extend its known range more than 500 km in north-west direction, from its nearest known occurrences on the southern Balkan peninsula

Revizija rodova Epilobium i Chamerion u hrvatskim herbarima ZA i ZAHO

Epilobium (s. lat.) herbarium material in two major Croatian herbaria ZA and ZAHO was revised. The results of the revision of over 400 herbarium sheets confirmed the occurrence of 13 species already reported for Croatia and only slightly changed their known distribution patterns. However two species previously reported for Croatia and represented also by some herbarium sheets turned out to be wrongly determined, the results being that there is now no reliable confirmation of E. alsinifolium and E. alpestre from the territory of Croatia. Summarized results of the revision are also presented and they demonstrate the comparably good level of correctly determined material in the studied herbaria (but with some taxa much less reliably determined) and an alarmingly low state of collecting activity in the last decades.Revidiran je herbarski materijal Epilobium (s. lat.) iz dva velika hrvatska herbara ZA i ZAHO. Rezultati revizije više od 400 herbarskih listova su potvrdili prisutnost 13 vrsta već poznatih za Hrvatsku i samo ponešto promijenili njihovu rasprostranjenost. Dvije vrste prethodno zabilježene za Hrvatsku te prisutne nekim herbarskim listovima, pokazale su se krivo determinirane, pa tako zasad nema utemeljene potvrde za prisutnost E. alsinifolium i E. alpestre na teritoriju Hrvatske. Rad donosi sveukupne rezultate revizije, koji pokazuju relativno dobru razinu ispravno determiniranog materijala u obrađivanim herbarima (s nekim mnogo manje pouzdano determiniranim svojtama) i alarmantno slabu sakupljačku aktivnost zadnjih desetljeća

Arable bryophytes from Northeastern Slovenia with new and interesting national records

We investigated the arable bryophyte flora in the Northeastern region of Slovenia. We found three new bryophyte taxa for Slovenia: Bryum violaceum, Dicranella staphylina and Hydrogonium consanguineum var. kurilense. The presence of the regionally extinct Ephemerum cohaerens was confirmed, and several other species from the National Red List of bryophytes were also recorded. A list of 25 bryophyte species growing on the studied arable fields is presented and commented on

New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 13

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: brown alga Heribaudiella fluviatilis, red alga Batrachospermum skujae, saprotrophic fungus Gnomonia geranii-macrorrhizi, mycorrhizal fungi Amanita alseides and Russula griseascens, liverwort Ricciocarpos natans, moss Blindia acuta, Leucodon sciuroides var. morensis and Pseudostereodon procerrimus, monocots Allium ampeloprasum, Carex ferruginea and Carex limosa and dicots Convolvulus althaeoides, Fumana aciphylla, Hieracium petrovae, Lamium bifidum subsp. bifidum and Ranunculus fontanus are given within SE Europe and adjacent region

New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 14

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: diatom algae Cyclostephanos invisitatus, Cyclotella meduanae, and Stephanodiscus lacustris, mycorrhizal fungi Alessioporus ichnusanus and Amanita mairei, saprotrophic fungi Diaporthe oncostoma, Stropharia albonitens and Pseudomassaria chondrospora, lichenised fungus Acrocordia subglobosa, stonewort Chara connivens, mosses Buxbaumia viridis, Tortella fasciculata and Tortula protobryoides, monocots Epipactis pontica Gymnadenia frivaldii, and Orchis italica and dicots Callitriche brutia, Callitriche platycarpa and Epilobium nutans are given within SE Europe and adjacent regions

New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 15

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: saprotrophic fungus Geastrum morganii, Guignardia istriaca and Hypoxylon howeanum, mycorrhizal fungus Amanita friabilis and Suillus americanus, xanthophyte Vaucheria frigida, stonewort Chara hispida, liverwort Calypogeia integristipula and Ricciocarpus natans, moss Campylopus introflexus, Dicranum transsylvanicum, Tortella pseudofragilis and Trematodon ambiguus, fern Ophioglossum vulgatum subsp. vulgatum, monocots Epipactis exilis, Epipactis purpurata and Epipogium aphyllum and dicots Callitriche cophocarpa, Cornus sanguinea subsp. hungarica and Viscum album subsp. austriacum are given within SE Europe and adjacent regions

Seed Germination of Invasive Phytolacca americana and Potentially Invasive P. acinosa

Phytolacca americana and P. acinosa are alien plant species in Europe. The former is considered invasive and more widespread. In order to develop effective and safe eradication and plant disposal methods, the present research focused on the seed germination of the two species. Fruits of different ripeness of both species were collected (fresh and dry seeds within and without pericarp), after which both the germination and maturation were tested. We also tested the continued maturing of fruits on cut plants and observed the development of fruits on whole plants with a cut taproot (in addition to when only the upper part of the stem with fruit racemes was cut off). In general, the seeds germinated from all stages of fruit ripeness, although the germination of dry seeds was better compared to fresh seeds. P. americana’s seeds germinated better and the fruit ripening on cut plants was also more successful compared to P. acinosa. These results could partly explain the invasive success of P. americana. According to our results, removing all fruiting plants from the eradication site is crucial regardless of the fruit development stage