Rhynchostegium riparioides (Hedw.) Cardot
  • Bull. Soc. Bot. France 60: CCXXXI. 1913. 


Cite taxon page as 'WFO (2025): Rhynchostegium riparioides (Hedw.) Cardot. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001174759. Accessed on: 04 Jun 2025'

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General Information

 

7. Rhynchostegium riparioides (Hedw.) Cardot in Tourret   水生长喙藓   shui sheng chang hui xian Bull. Soc. Bot. France 60: 231. 1913. Eurhynchium riparioides (Hedw.) P. W. Richards, Ann. Bryol. 9: 135. 1937. Platyhypnidium riparioides (Hedw.) Dixon, Rev. Bryol. Lichénol. 6: 111. 1934. Hypnum riparioides Hedw., Sp. Musc. Frond. 242. 1801. Type: Germany. Eurhynchium rusciforme Milde, Bryol. Siles. 312. 1869. Platyhypnidium rusciforme M. Fleisch., Musci Buitenzorg 4: 1537. 1923, nom. illeg. Rhynchostegium platyphyllum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s., 5: 201. 1898. Type: China. Shaanxi, May 1896, Giraldi s.n. Rhynchostegium rusciforme (Weiss ex Brid.) Schimp. in B.S.G., Bryol. Eur. 5: 207. 1852, nom. illeg. Hypnum rusciforme Weiss ex Brid., Muscol. Recent. 2(2): 173. 1801, nom. illeg. Rhynchostegium schottmuelleri (Broth.) Paris, Index Bryol. Suppl. 302. 1900. Platyhypnidium schottmuelleri (Broth.) M. Fleisch., Musci Buitenzorg 4: 1537. 1923. Hypnum schottmuelleri Broth., Hedwigia 38: 242. 1899.   Plants medium-sized, rather stout, dark green, in loose mats. Stems often prostrate, to ca. 4 cm long, loosely irregularly branched, occasionally with erect or ascending branches, sparsely foliate, sometimes naked; branches densely foliate, simple or with branchlets. Stem and branch leaves similar, broadly ovate, rounded or orbicular, 1.32–1.58 mm × 0.77–1.40 mm, broadly acute or apiculate at apex, strongly constricted at insertion; margins plane or rarely waved, serrulate nearly throughout; costae reaching above mid-leaf, not projecting at tips; median leaf cells long rhomboidal to linear, 68–100 µm × 6–7 µm, thin-walled; apical cells shortly rhomboidal; alar cells moderately differentiated, shortly rectangular or elliptical. Autoicous. Perichaetial leaves lanceolate, costate. Setae ca. 10 mm long, reddish brown, smooth; capsules inclined, ovoid, dark green; opercula shortly rostrate, with curved beaks; endostome segments as long as exostome teeth, perforate; cilia short, reduced. Spores not seen.  

  • Provided by: [C].Moss Flora of China
    • Source: [
    • 3
    • ]. 

    Plants medium-sized to robust, in wide, loose, yellow- to dark-green mats, becoming black below. Stems prostrate, often denuded with age, irregularly to subpinnately branched; branches erect, elongate. Leaves ventrally appressed and dorsally subsecund or terete to subcomplanate when dry, erect to spreading and homomallous when moist. Stem leaves concave, neither plicate nor decurrent, 1.4—1.8 x 0.8-1.3 mm, broadly ovate to oblong-ovate, acute to obtuse or obtuse-apiculate; margins sermlate nearly to the base, occasionally serrate at the apex; costa thick at the base, tapered and becoming very slender, rarely forked, ending 1/2-2/3 up the leaf, sometimes in a spine; upper median cells linear, 47-100 x 4-10 µm; cells of acumen fusiform to linear, 15-37 x 4-12 µm; basal cells at the costa rectangular, becoming lax toward the alar regions, 25-60 x 7-20 µm; alar cells laxly rectangular, 20-50 x 7-20 µm , bordered by 1-2 rows of slenderly rectangular cells (15-47 x 4-8 µm). Branch leaves 0.6-1.7 x 0.4-1.2 mm, occasionally twisted at the apex. Autoicous. Perigonial bracts ovate, abmptly short-acuminate, and blunt, up to 0.7 mm long. Perichaetial leaves abmptly to gradually acuminate from an oblong, sheathing base, up to 2.2 mm long. Setae red, smooth, 10-18 mm long; capsules ± curved, 1.3-2.1 x 0.6-1.2 mm long, oblong-ovoid, tapered at the short neck, constricted below the mouth; annulus of 2 layers of inflated cells; operculum conic-rostrate, up to 1.4 mm long; cilia of endostome 1-3, well developed, nodose or appendiculate. Spores 12-20 µm, smooth.

  • Provided by: [B].Memoirs of the New York Botanical Garden
    • Source: [
    • 4
    • ]. 

    Distribution

    On rocks, occasionally soil, and rarely wood in wet areas or in running water, 1300-3900 m alt.; Baja California, Chiapas, Chihuahua, Distrito Federal, Durango, Jalisco, Mexico, Michoacan, Nuevo Leon, Oaxaca, Puebla, Sonora, Tamaulipas, Veracruz.—Mexico; Guatemala; northern South America; West Indies; widespread in the United States; Europe; North Africa; Asia.

  • Provided by: [B].Memoirs of the New York Botanical Garden
    • Source: [
    • 4
    • ]. 
    Memoirs of the New York Botanical GardenDistribution

    On rocks, occasionally soil, and rarely wood in wet areas or in running water, 1300-3900 m alt.; Baja California, Chiapas, Chihuahua, Distrito Federal, Durango, Jalisco, Mexico, Michoacan, Nuevo Leon, Oaxaca, Puebla, Sonora, Tamaulipas, Veracruz.—Mexico; Guatemala; northern South America; West Indies; widespread in the United States; Europe; North Africa; Asia.

    General Information

    Plants medium-sized to robust, in wide, loose, yellow- to dark-green mats, becoming black below. Stems prostrate, often denuded with age, irregularly to subpinnately branched; branches erect, elongate. Leaves ventrally appressed and dorsally subsecund or terete to subcomplanate when dry, erect to spreading and homomallous when moist. Stem leaves concave, neither plicate nor decurrent, 1.4—1.8 x 0.8-1.3 mm, broadly ovate to oblong-ovate, acute to obtuse or obtuse-apiculate; margins sermlate nearly to the base, occasionally serrate at the apex; costa thick at the base, tapered and becoming very slender, rarely forked, ending 1/2-2/3 up the leaf, sometimes in a spine; upper median cells linear, 47-100 x 4-10 µm; cells of acumen fusiform to linear, 15-37 x 4-12 µm; basal cells at the costa rectangular, becoming lax toward the alar regions, 25-60 x 7-20 µm; alar cells laxly rectangular, 20-50 x 7-20 µm , bordered by 1-2 rows of slenderly rectangular cells (15-47 x 4-8 µm). Branch leaves 0.6-1.7 x 0.4-1.2 mm, occasionally twisted at the apex. Autoicous. Perigonial bracts ovate, abmptly short-acuminate, and blunt, up to 0.7 mm long. Perichaetial leaves abmptly to gradually acuminate from an oblong, sheathing base, up to 2.2 mm long. Setae red, smooth, 10-18 mm long; capsules ± curved, 1.3-2.1 x 0.6-1.2 mm long, oblong-ovoid, tapered at the short neck, constricted below the mouth; annulus of 2 layers of inflated cells; operculum conic-rostrate, up to 1.4 mm long; cilia of endostome 1-3, well developed, nodose or appendiculate. Spores 12-20 µm, smooth.

    Moss Flora of ChinaGeneral Information

     

    7. Rhynchostegium riparioides (Hedw.) Cardot in Tourret   水生长喙藓   shui sheng chang hui xian Bull. Soc. Bot. France 60: 231. 1913. Eurhynchium riparioides (Hedw.) P. W. Richards, Ann. Bryol. 9: 135. 1937. Platyhypnidium riparioides (Hedw.) Dixon, Rev. Bryol. Lichénol. 6: 111. 1934. Hypnum riparioides Hedw., Sp. Musc. Frond. 242. 1801. Type: Germany. Eurhynchium rusciforme Milde, Bryol. Siles. 312. 1869. Platyhypnidium rusciforme M. Fleisch., Musci Buitenzorg 4: 1537. 1923, nom. illeg. Rhynchostegium platyphyllum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s., 5: 201. 1898. Type: China. Shaanxi, May 1896, Giraldi s.n. Rhynchostegium rusciforme (Weiss ex Brid.) Schimp. in B.S.G., Bryol. Eur. 5: 207. 1852, nom. illeg. Hypnum rusciforme Weiss ex Brid., Muscol. Recent. 2(2): 173. 1801, nom. illeg. Rhynchostegium schottmuelleri (Broth.) Paris, Index Bryol. Suppl. 302. 1900. Platyhypnidium schottmuelleri (Broth.) M. Fleisch., Musci Buitenzorg 4: 1537. 1923. Hypnum schottmuelleri Broth., Hedwigia 38: 242. 1899.   Plants medium-sized, rather stout, dark green, in loose mats. Stems often prostrate, to ca. 4 cm long, loosely irregularly branched, occasionally with erect or ascending branches, sparsely foliate, sometimes naked; branches densely foliate, simple or with branchlets. Stem and branch leaves similar, broadly ovate, rounded or orbicular, 1.32–1.58 mm × 0.77–1.40 mm, broadly acute or apiculate at apex, strongly constricted at insertion; margins plane or rarely waved, serrulate nearly throughout; costae reaching above mid-leaf, not projecting at tips; median leaf cells long rhomboidal to linear, 68–100 µm × 6–7 µm, thin-walled; apical cells shortly rhomboidal; alar cells moderately differentiated, shortly rectangular or elliptical. Autoicous. Perichaetial leaves lanceolate, costate. Setae ca. 10 mm long, reddish brown, smooth; capsules inclined, ovoid, dark green; opercula shortly rostrate, with curved beaks; endostome segments as long as exostome teeth, perforate; cilia short, reduced. Spores not seen.  

    Synonyms

     Information From

    Brachytheciaceae
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    Memoirs of the New York Botanical Garden
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    Moss Flora of China
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