Horned Pondweed

Summary[edit] Description: English: Yu Ito (2012) Aquatic plant surveys in the eastern and central parts of North America. Bulletin of Water Plant Society, Japan 98: 51-56. Date: 18 August 2008, 09:55:01. Source: Own work. Author: Ruppia2000.

Herbarium Specimen..

Herbarium Specimen..

Herbarium Specimen..

Herbarium Specimen..

Illustratio systematis sexualis LinnaeaniFrancofurti ad Moenum,Varrentrapp et Wenner,1789.biodiversitylibrary.org/page/7360309

Summary[edit] Description: Deutsch: Laubblatt (Durchlicht) Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Leaf (transmitted light) Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 19:49:58. Source: Own work. Author: Stefan.lefnaer.

Summary[edit] Description: Deutsch: Stängel mit Fruchtstand Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Stem with infructescence Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 19:46:06. Source: Own work. Author: Stefan.lefnaer.

If there are possibilities for hybridization, the pollen ist less uniform 1. Zannichellia palustris (monotypic) 2. Potamogeton (many species) 3. Rubus odoratus (flowering later than other Rubus) 4. Rubus villosus (many species of Rubus flowering the same time) 5. Ranunculus rhomboides (flowering earlier than other Ranunculus) 6. Ranunculus acrís (many species of Ranunculus flowering the same time) Identifier: dedicationpapers00broo (find matches)Title: Dedication papers : scientific papers presented at the dedication of the laboratory building and plant houses, April 19-21, 1917Year: 1918 (1910s)Authors: Brooklyn Botanic GardenSubjects: PlantsPublisher: Brooklyn, N.Y. : Brooklyn Botanic GardenContributing Library: The LuEsther T Mertz Library, the New York Botanical GardenDigitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical GardenView Book Page: Book ViewerAbout This Book: Catalog EntryView All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book.Text Appearing Before Image:ata derived from genetical behavior, in speculations in regardto the origin of species. It seems clear from the evidence supplied on the systematic andphytogeographical sides on the one hand and that from the standpointof morphology on the other, that the crossing of species in nature isan extremely common cause of the multiplication of species. It isfurther obvious that physiological and genetical criteria must not begiven greater weight than the more reliable ones supplied by actualhistory and by morphological structure, in the all-important biologicalquestion of the origin of the species. It is finally apparent that thegenetical status of the Oenotheras is so dubious that they cannot bebrought into court to furnish decisive evidence in favor of the muta-tion hypothesis of De Vries. It may be added in conclusion that themultiplication of species by hybridization does not by any meansinvalidate the Darwinian hypothesis but merely supplies an additional Brooklyn Botanic Garden MemoirsText Appearing After Image:Jeffrey: Evolution by Hybridization JEFFREY: EVOLUTION BY HYBRIDIZATION 305 agency for the formation of species. It appears moreover logicallyimpossible to regard hybridization as the universal and sole cause ofthe appearance of new species, as has been recently maintained byLotsy in his Evolution by Means of Hybridization, since the originalspecies must have come into existence by some other means than byhybridization. The adaptation of the floral structures of the Angio-sperms to cross fertilization, emphasized many years ago by theAustrian botanist Kerner is doubtless of significance in connectionwith the ever-increasing volume of evidence for the wide occurrenceof natural hybrids in this large and successful group of seed-plantswhich have to so notable a degree furnished the facts for the existinggeneral biological theories. DESCRIPTION OF PLATE V Fig. I. Pollen of Zannichelka palustrts, showing great uniformity in a speciesunable to hybridize. X 400. Fig. 2. Pollen of PotamogetonNote About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

Summary[edit] Description: Deutsch: Habitus Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Habitus Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 19:35:46. Source: Own work. Author: Stefan.lefnaer.

Summary[edit] Description: English: Yu Ito (2012) Aquatic plant surveys in northern Europe. Bulletin of Water Plant Society, Japan 98: 45-50. Date: 5 August 2012, 12:48:37. Source: Own work. Author: Ruppia2000.

Summary[edit] Description: Deutsch: Stängel mit Fruchtstand Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Stem with infructescence Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 19:44:33. Source: Own work. Author: Stefan.lefnaer.

Summary[edit] Description: Zannichellia palustris. Date: 29 June 2011, 09:45. Source: Zannichellia palustris Uploaded by Jacopo Werther. Author: Radio Tonreg from Vienna, Austria.

Summary[edit] Description: Deutsch: Stängel mit Fruchtstand Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Stem with infructescence Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 19:59:13. Source: Own work. Author: Stefan.lefnaer.

Summary[edit] Description: Deutsch: Stängel mit Fruchtstand Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Stem with infructescence Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 19:56:06. Source: Own work. Author: Stefan.lefnaer.

Summary[edit] Description: Deutsch: Stängel mit Blattscheide und Laubblättern Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Stem with leaf sheath and leaves Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 19:47:30. Source: Own work. Author: Stefan.lefnaer.

Summary[edit] Description: Deutsch: Laubblatt (Durchlicht) Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Leaf (transmitted light) Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 19:49:15. Source: Own work. Author: Stefan.lefnaer.

Summary[edit] Description: Deutsch: Habitus Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Zieringser Teich (gezogen), Bezirk Zwettl, Niederösterreich - ca. 520 m ü. A. Standort: Teichboden English: Habitus Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Zieringser Teich (drained-off), district Zwettl, Lower Austria - ca. 520 m a.s.l. Habitat: ground of a pond. Date: 10 July 2021, 14:31:59. Source: Own work. Author: Stefan.lefnaer. Camera location48° 36′ 38.86″ N, 15° 20′ 34.68″ E View all coordinates using: OpenStreetMap 48.610794; 15.342967.

Summary[edit] Description: Deutsch: Habitus Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Habitus Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 19:34:39. Source: Own work. Author: Stefan.lefnaer.

Summary[edit] Description: Deutsch: Habitus Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Habitus Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 19:32:58. Source: Own work. Author: Stefan.lefnaer.

Summary[edit] Description: Deutsch: Stängel mit Fruchtstand Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Stem with infructescence Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 20:03:56. Source: Own work. Author: Stefan.lefnaer.

Description: English: Habitus of the water plant Zannichellia palustris ssp. palustris. Deutsch: Habitus der Wasserpflanze Sumpf-Teichfaden, Zannichellia palustris ssp. palustris. Date: 18 September 2012. Source: Own work. Picture taken with: + + tripod. Location: North-eastern Lower Saxony, Germany (ex situ). Author: Christian Fischer. Other versions: See also . : This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.:. Attribution: Christian Fischer. https://creativecommons.org/licenses/by-sa/3.0 CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue.

Summary[edit] Description: Deutsch: Stängel mit Blattscheide und Laubblättern Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Stem with leaf sheath and leaves Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 20:02:19. Source: Own work. Author: Stefan.lefnaer.

Summary[edit] Description: Deutsch: Stängel mit Fruchtstand Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Fundort: Mühlbach am Josefsplatz in Baden bei Wien, Bezirk Baden, Niederösterreich - ca. 230 m ü. A. Standort: kanalisierter Bach English: Stem with infructescence Taxonym: Zannichellia palustris subsp. palustris ss Fischer et al. EfÖLS 2008 ISBN 978-3-85474-187-9 Location: Mühlbach at Josefsplatz at Baden bei Wien, district Baden, Lower Austria - ca. 230 m a.s.l. Habitat: channeled stream. Date: 16 November 2019, 20:06:45. Source: Own work. Author: Stefan.lefnaer.