(redirected from Hornworts)
Also found in: Thesaurus, Encyclopedia.
Related to Hornworts: Vascular plants, Bryophytes


 (hôrn′wûrt′, -wôrt′)
1. Any of several small green nonvascular plants of the division Anthocerotophyta, having a flat thallus from which elongated, hornlike spore-producing structures grow.
2. Any of several aquatic vascular plants of the genus Ceratophyllum, forming branched masses in quiet water and having minute unisexual flowers and stiff, forked, whorled leaves resembling antlers or horns.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Plants) any aquatic plant of the genus Ceratophyllum, forming submerged branching masses in ponds and slow-flowing streams: family Ceratophyllaceae
2. (Botany) any of a group of bryophytes belonging to the phylum Anthocerophyta, resembling liverworts but with hornlike sporophytes
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈhɔrnˌwɜrt, -ˌwɔrt)

any of several rootless aquatic herbs of the genus Ceratophyllum, having finely dissected, whorled leaves.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hornwort - any aquatic plant of the genus Ceratophyllumhornwort - any aquatic plant of the genus Ceratophyllum; forms submerged masses in ponds and slow-flowing streams
Ceratophyllum, genus Ceratophyllum - constituting the family Ceratophyllaceae: hornworts
aquatic plant, hydrophyte, hydrophytic plant, water plant - a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth
2.hornwort - liverworts with slender hornlike capsules
Anthocerotales, order Anthocerotales - hornworts; liverworts having a thalloid gametophyte; in some classification systems included in the class Hepaticopsida
hepatic, liverwort - any of numerous small green nonvascular plants of the class Hepaticopsida growing in wet places and resembling green seaweeds or leafy mosses
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The others are the hornworts and liverworts, not to be confused with Hogwarts and liverwurst.
Since endophytes were first described in the Darnel (Lolium temulentum) (37), they have been isolated from various organs of different plant species, above ground tissues of liverworts, hornworts, mosses, lycophytes, equisetopsids, ferns, and spermatophytes from the tropics to the arctic, and from the wild to agricultural ecosystems (38) and to date, all plant species studied have been found to harbour at least one endophyte (14).
She was out on a stroll with around 20 other people who are part of a growing community in Japan obsessed with plants known as bryophytes, including moss, liverworts, and hornworts.
New and interesting records of Argentinian Ricciaceae (Marchantiophyta) and hornworts (Anthocerotophyta).
The bryophytes (mosses, liverworts and hornworts) stand for the second largest group of the simplest green land plants following angiosperms, and are phylogenetically placed between the algae and the pteridophytes.
Nomenclature follows Streimann and Klazenga (2002) for mosses, McCarthy (2003) for liverworts and hornworts, and McCarthy (2003; including online amendments up to 2010) for lichens.
Hornworts have no specialized structures to aid spore dispersal but a unique intercalary meristem results in relatively long period of spore production.
As far as the number of hornworts, liverworts and moss taxa is concerned, Albania counts for 3, 89 and 258 respectively, and Macedonia for 1, 71 (all referable to old reports) and 403 respectively.
Bryophytes sensu lato (liverworts, mosses, and hornworts) are placed as a phylogenetic grade between the charophycean algae and pteridophytes [25].
According to the website, "the PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S.
The valley is home to many liverworts, mosses, hornworts and vascular plants.