Favoritos de alexanderwuensche
Fotos / Sonidos
Observ.
thomas_nogatzDescripción
Bild 5: 10 TS = 1,02 mm
Bild 6 - 7: 10 TS = 0,4 mm
Bild 9: Lack-Abdruck im Durchlicht (nach der in Reichert 2023 geschilderten Methode)
Bilder 3, 4 und 9: Fokus-Stacking mit Hilfe der Software Picolay https://picolay.de/
Merkmale:
- Samen nicht mit Wachs bedeckt und nicht bläulich
- Samendurchmesser durchschnittlich unter 0,85 mm (0,7-0,85 mm)
- Samen-Epidermis glänzend
- sowohl isodiametrische als auch längliche Epidermiszellen vorhanden
- Epidermiszellen bilden ein gut sichtbares sternförmiges Muster
- Epidermiszellen ohne Tuberkel
- Samenoberfläche nicht gleichmäßig mit kleinen Papillen annähernd gleicher Größe besetzt wie bei P. zaffranii
- viele Strahlen (besonders der randlichen Epidermiszellen) am Ende mit Papillen
Literatur:
Reichert, H. (2023): Morphologisch unterscheidbare Sippen von Portulaca oleracea s.l. - bestimmt anhand von Lackabdrücken der Samen. – Kochia 16, 55-72.
https://ojs.ub.uni-frankfurt.de/kochia/index.php/kochia/article/view/165Walter, J.; Vekslyarska, T.; Dobeš, C. (2015): Flow cytometric, chromosomal and morphometric analyses challenge current taxonomic concepts in the Portulaca oleracea complex (Portulacaeae, Caryophyllales). – Botanical Journal of the Linnean Society 179, 144-156.
https://academic.oup.com/botlinnean/article/179/1/144/2416589?login=falseWalter, J. (2006): Vorkommen und Verbreitung der infraspezifischen Sippen des Gemüse-Portulaks (Portulaca oleracea, Portulacaceae) in Österreich - Schlüssel und erster Überblick. – Neilreichia 4, 235-242.
https://www.zobodat.at/pdf/NEIL_4_0235-0242.pdfDanin, A.; Fragman-Sapir, O. (2010): Portulaca oleracea: Seed Structure. In: Flora of Israel and adjacent areas – Jerusalem.
https://flora.org.il/books/plant-stories-2/chapter-k/useful_plants_k1/
https://flora.org.il/books/plant-stories-2/chapter-k/useful_plants_k2/- Danin, A.; Domina, G.; Raimondo, F. M. (2008): Microspecies of the Portulaca oleracea aggregate found on major Mediterranean islands (Sicily, Cyprus, Crete, Rhodes). – Flora Mediterranea 18, 89-107. https://www.researchgate.net/publication/291968939_Microspecies_of_the_Portulaca_oleracea_aggregate_found_on_major_Mediterranean_islands_Sicily_Cyprus_Crete_Rhodes
Bulakh, E.; Shevera, M.; Szkudlarz, P.; Bulakh, P. Y.; Celka, Z. (2022): Іdentification of New Taxa of Portulaca oleracea L. Aggregate From Poland Based on Seed Coat Micromorphological Characteristics. – Acta Societatis Botanicorum Poloniae 91, 1-14.
https://www.researchgate.net/publication/365301011_Identification_of_New_Taxa_of_Portulaca_oleracea_L_Aggregate_From_Poland_Based_on_Seed_Coat_Micromorphological_CharacteristicsBomble, F. W. (2013): Funde von Portulaca granulatostellulata, P. nitida und P. papillatostellulata in Nordrhein-Westfalen. – Veröff. Bochumer Bot. Ver. 5(4), 36-43.
https://www.botanik-bochum.de/publ/OVBBV5_4_Bomble_Portulaca.pdfPeregrym, M.; Dragićević, S. (2024): The current knowledge about the distribution of Portulaca species (Portulacaceae) within the Balkan Peninsula. – Biologia 9, 2665-2683.
https://www.researchgate.net/publication/382068780_The_current_knowledge_about_the_distribution_of_Portulaca_species_Portulacaceae_within_the_Balkan_PeninsulaDanin, A.; Baker, I.; Baker, H.G. (1978): Cytogeography and taxonomy of the Portulaca oleracea L. polyploid complex. - Israel Journal of Botany 27: 177-211
https://typeset.io/papers/cytogeography-and-taxonomy-of-the-portulaca-oleracea-l-2q0co7ahxn
Fotos / Sonidos
Qué
Carex distansObserv.
piotr_kobierskiDescripción
Published:
KOBIERSKI P., RYŚ R. 2017. Rozmieszczenie wybranych taksonów roślin naczyniowych na obszarze powiatu żarskiego (zachodnia Polska). Przegląd Przyrodniczy XXVIII, 1: 3–42.
https://kp.org.pl/pdf/pp/pdf2/pp_nr%201_2017_kobierski.pdf
RYŚ R. & KOBIERSKI P. 2019. Materiały do flory południowo-zachodniej części województwa lubuskiego. s. 120. FloraKob, Lubsko.
https://www.researchgate.net/publication/339209103
Fotos / Sonidos
Observ.
caroigDescripción
🇨🇿 Mírný svah (JV orientace) pod koncem hřbetu z krystalického vápence. Tři rostliny, jedna kvetoucí, dvě již z větší části odkvetlé. Mezi větším množstvím Orchis maculata ssp. speciosa.
🇬🇧 Gentle slope (SE orientation) under the end of a crystalline limestone ridge. Three plants, one blooming, two more or less past blooming . Among a larger number of Orchis maculata ssp. speciosa.
Fotos / Sonidos
Observ.
piotr_kobierskiDescripción
Published:
KOBIERSKI P., PIOTROWSKI R. & RYŚ R. 2021. Materiały do flory południowo-zachodniej części województwa lubuskiego, część III. s. 108. FloraKob, Lubsko.
https://www.researchgate.net/publication/356969890
Fotos / Sonidos
Observ.
piotr_kobierskiDescripción
Published:
KOBIERSKI P., RYŚ R. & PIOTROWSKI R. 2020. Materiały do flory południowo-zachodniej części województwa lubuskiego, część II. s. 82. FloraKob, Lubsko.
https://www.researchgate.net/publication/345312298
Fotos / Sonidos
Observ.
caroigDescripción
🇨🇿 Roste ze břehů potoka, místy i mimo tekoucí vodu. Místo je známé a poměrně snadno přístupné, podobných míst je na Hradčanském potoce vícero.
🇬🇧 Grows from the stream banks, in places outside of flowing water. The place is known and relatively easily accesible, there are many similar places on the Hradčanský brook.
Fotos / Sonidos
Observ.
johannes_merzDescripción
BIP Excursion 2023 to Subarctic Finland and la Réunion
Fotos / Sonidos
Observ.
caroigLugar
Oberer Großteich, Biosphärenreservat Oberlausitzer Heide- und Teichlandschaft, DE (Google, OSM)Descripción
🇬🇧 With turions. A small dry puddle among Carex sp. growth. The only place I saw this bladderwort, otherwise there was a lot of U. minor agg. The area is a bottom of an empty fishpond (the last photo).
Fotos / Sonidos
Observ.
erwin_pteridophilosDescripción
I do assume this is Dryopteris remota upon the leaves' shape and darkened stipe base of pinnae.
Fotos / Sonidos
Observ.
erwin_pteridophilosDescripción
Since i took so many photos of this unusual fern, it's all but easy to select just a few to show here. I was surprised and delighted to see the fern growing abundantly in the cracks of the serpentine rocks. So this is a most important population at the border of the species' native range. This site is surely something very special, at least in Austria.
Fotos / Sonidos
Observ.
erwin_pteridophilosDescripción
The main population of the rare fern is located within the protected NSG Gurhofgraben, where it grows in large numbers upon the serpentine rocks. I could find just a few scattered examples upon rocks to the NE of the NSG (Naturschutz-Gebiet), N of the Mitterbach. The unusual fern is strictly protected by the law, apart of that one could not separate these plants from the substrate without destroying them, and these ferns had no chance to survive.
Fotos / Sonidos
Observ.
erwin_pteridophilosDescripción
The main population of the rare fern is located within the protected NSG Gurhofgraben, where it grows in large numbers upon the serpentine rocks. I could find just a few scattered examples upon rocks to the NE of the NSG (Naturschutz-Gebiet), N of the Mitterbach. The unusual fern is strictly protected by the law, apart of that one could not separate these plants from the substrate without destroying them, and these ferns had no chance to survive.
