Bryum subapiculatum Hampe
  • Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn


Cite taxon page as 'WFO (2021): Bryum subapiculatum Hampe. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001177186. Accessed on: 19 Jun 2021'

General Information

Bryum subapiculatum Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjbenhavn ser. 3, 3: 51. 1872.

Protologue: Brazil. Glaziou, sub Nr. 5148.

Bryum microerythrocarpum C. Müll. & Kindb. in Macoun, Cat. Canad. Pl., Musci 6: 124. 1892. Protologue: Canada. In wet gravel, shore of Shawnigan Lake, Vancouver Island, July 1st, 1887, Macoun (MO). 

Plants small to medium-sized, dull green or yellowish green, often tinged red, in loose tufts, 4–10 mm high; rhizoids moderately developed at base, papillose, with red to reddish brown, oblong to spherical, smooth gemmae, to 190 μm long. Leaves 1–2 mm long, erect when dry, erect to erect‑spreading when wet, lanceolate to oblong‑lanceolate; apices acuminate; margins plane, sometimes reflexed below, weakly bordered by several rows of somewhat narrower, long‑rectangular cells, serrulate above; costae strong, red, variously excurrent; upper cells elongate‑hexagonal, firm‑walled, 40–80 μm long, basal cells rectangular, firm‑walled, 20–80 μm long, quadrate at the lower margins. Dioicous. Setae to 15–40 mm long, reddish brown. Capsules 2–4 mm long, red, oval‑cylindrical, symmetric, pendent, neck short, narrowed and tapering to the seta; opercula 0.5 mm long, conic apiculate; exostome teeth yellow‑brown, densely papillose, endostome hyaline, lightly papillose, basal membrane to ½ of exostome teeth length, segments well-developed, narrowly perforate, cilia 2‑5, appendiculate. Spores 10 μm, nearly smooth. Calyptra not seen.

  • Provided by: [C].Moss Flora of Central America
    • Source: [
    • 1
    • ]. 

    Diagnostic Description

    In comparison with G. dichotomum and G. radiculosum, this species has longer and narrower capsules. Sterile specimens are sometimes difficult to distinguish from G. dichotomum. The lanceolate leaves with short-excurrent costae and the reddish tubers will help to identify specimens of G. subapiculatum.

  • Provided by: [D].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Morphology

    Plants small to medium-sized, loosely caespitose to caespitose, green above, yellowish brown or reddish brown below; terricolous or humicolous. Stems 3-15 mm tall, simple or branching by subperichaetial innovations, tomentose below; rhizoids reddish or reddish brown, papillose, tubers (80-)200-300 µm, red or red-brown. Leaves larger above, erect and slightly twisted dry, erect-spreading wet; lanceolate, oblong-lanceolate or elliptical, (0.8-)1.0-2.0(-2.2) mm long; apex acuminate; margins plane to recurved below, denticulate above; border generally absent. Costa mucronate to short-excurrent, occasionally reddish below, awn 0.1-0.3 mm long; in section subround, lamina inserted ventrally, ventral surface cells present, dorsal stereid band in 1-3 rows, dorsal surface cells incrassate, hydroids forming large gap between guide cells and stereid band. Upper laminal cells rhomboidal, thin-walled or occasionally incrassate, frequently narrower and incrassate towards margin, 40-68 (-98) µm long, 10-18 µm wide; basal cells rectangular to quadrate, thin-walled or incrassate, occasionally pitted. Propagulae not seen. Dioicous. Perichaetia terminal, leaves lanceolate to narrowly triangular, margins recurved. Seta 12-28 mm long, yellowish to red; capsule pendulous, oblong-cylindrical or narrowly pyriform, yellowish brown, reddish brown to red, urn 1.0-2.2 mm long, neck wrinkled when dry, frequently curved, 0.8-1.2 mm long; exothecial cells irregular in shape, incrassate, smaller towards mouth, 1-3 rows at mouth transversely elongated; peristome double, exostome teeth narrowly oblong-acuminate, bordered, yellow, orange or red-brown below, hyaline above, minutely papillose, endostome segments tapered above, broadly perforated, cilia 2-3, nodose to appendiculate, basal membrane high, yellowish, minutely papillose; operculum conical, mammillate; calyptra cucullate; spores 11-14 µm, smooth to minutely granulose.

  • Provided by: [D].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Habitat

    On soil and humus-rich soil.

  • Provided by: [D].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Distribution

    The species is found in northern America, Europe, New Zealand and southern Africa. In the Flora area G. subapiculatum is infrequently collected in the southwestern Cape, Natal and central Transvaal.

  • Provided by: [D].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Distribution Map

     
    • Native distribution
    Found in
    • Southern America Brazil Bahia
    • Minas Gerais
    • Rio de Janeiro
    • São Paulo
    • Goiás

      Bibliography

     Information From

    Brazilian Flora 2020 project - Projeto Flora do Brasil 2020
    http://floradobrasil.jbrj.gov.br
    Brazil Flora G (2014): Brazilian Flora 2020 project - Projeto Flora do Brasil 2020. v393.147. Instituto de Pesquisas Jardim Botanico do Rio de Janeiro. Dataset/Checklist. doi:10.15468/1mtkaw
    • A Group Brazil Flora, REFLORA Program
    Bryaceae
    World Flora Online Data. 2017.
    • B CC0 1.0 Universal (CC0 1.0).
    Moss Flora of Central America
    http://www.mobot.org/MOBOT/Moss/centralamerica/welcome.shtml
    Moss Flora of Central America. Missouri Botanical Garden. Accessed on Jun. 2020.
    • C Missouri Botanical Garden
    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • D All Rights Reserved
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).