Home Moss Flora of China
Name Search
About
Moss Checklist
Moss Flora
Guide to Authors
Participants
Glossary
!Hypnum densirameum Ando Search in The Plant ListSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Publicado en: Journal of Science of Hiroshima University, Series B, Division 2 (Botany) 8: 13. 1957. (J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot.) Name publication detail
 

Datos del Proyecto Nombre (Last Modified On 4/2/2009)
Aceptación : Accepted
Datos del Proyecto     (Last Modified On 5/6/2009)
General Reference:

Illustration & Map     (Last Modified On 5/6/2009)
Illustrations: Hypnum densirameum Ando (Figs. 1–12.)
Mapa: Hypnum densirameum Ando (Distribution in China)

Distribución     (Last Modified On 5/6/2009)
Distribución:

 

Habitat: on thin soil over rocks in forests; alt. 700 m.
Distribution: China and Japan.
 

 


Specimens Examined     (Last Modified On 5/6/2009)
Specimens Examined:
 
Chinese specimen examined: Shaanxi: Cheng-gu Co., M.-X. Zhang & J.-Z. Zhang 974 (XBGH). P.-C. Chen et al. (1978) reported Hypnum densirameum from Nei Mongol. However, this record could neither be verified by X.-L. Bai (1997) in the bryoflora of Nei Mongol nor by the present study. The present species was also reported from Taiwan by Iwatsuki (1969) and S.-H. Lin (1988).
 

Notas     (Last Modified On 5/6/2009)
general taxon notes:
Hypnum densirameum is characterized by its autoicous sexual condition, densely pinnately branched stems, triangular-lanceolate to elliptical-lanceolate leaves, ellipsoidal and arcuate capsules, and mammillose-rostrate opercula. It is close to Hypnum fauriei, but differs by having soft, densely and slenderly pinnately branched stems, stem leaves with alar cells mixed with a few smaller, subquadrate and few larger, hyaline cells, and shorter capsules not beyond 2.3 mm long; while in H. fauriei, the capsules are usually over 2.3 mm long.
 

 

Export To PDF Export To Word

 

5. Hypnum densirameum Ando   密枝灰藓   mi zhi hui xian
J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 8: 13. 1957. Type: Japan. Honshu, Pref. Hiroshima, Ando 21224.
 
Plants soft, slender, brownish green, in dense mats. Stems prostrate, up to 10 cm long, radiculose; in stem cross section epidermal cells not hyaline and inflated, outer cortical cells 4–6 layers, dark brown, medullar cells large, hyaline, central strand well developed; densely pinnately branched, flattened, branches 3–5 cm long; pseudoparaphyllia lanceolate. Stem leaves falcate-secund, triangular-lanceolate to oblong ovate-lanceolate, 1.6–2.0 mm × 0.55–0.72 mm, slenderly acuminate at apex; margins recurved near the leaf bases, entire, except serrulate near the apex; costae double, distinct; median leaf cells very linear, 50–70 µm × 2–3 µm, thick-walled; basal cells thick-walled, brownish, porose; alar cells lax, hyaline, small, subquadrate, with 3–5 rows of cells at margins; branch leaves smaller, 1.3–1.7 mm × 0.3–0.4 mm, narrowly lanceolate, falcate-secund or circinate, alar cells distinctly differentiated. Autoicous. Inner perichaetial leaves lanceolate, plicate, slenderly acuminate ending with a filiform, serrulate apex; costae double, distinct. Setae 3.5–4.0 cm long, smooth, pale brownish, twisted when dry; capsules horizontal, ellipsoidal, arcuate, 1.5–2.0 mm long, pale green to pale brown, wrinkled when dry; opercula conic, bluntly apiculate, mammillose-rostrate; annuli developed, in 2–3 rows; peristome typically hypnoid, with 2–3 cilia. Calyptrae not seen. Spores 14–17 µm in diameter, very minutely roughened.
 
 
 
© 2014 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110