Overview

Brief Summary

Description

 Life habit: lichenized; Thallus: crustose, continuous or slightly rimose; surface: variable, pale yellow, ochre or pale brown, smooth, waxy, rarely white or cream-colored, without soralia or isidia; cortex: mostly well developed and consisting of whitish to yellowish periclinal hyphae; medulla: sometimes with large crystals; photobiont: primary one a Trentepohlia green alga, secondary one absent; Ascomata: apothecial, lirellate or ±rounded, in some species embedded in carbonized stromata with white or pale brown surface, ascocarps or stromata usually distinctly raised; disc: with conspicuous brownish granular surface, widely open (only in G. substriatula narrow and slit-like); margin: usually present but often inconspicuous, excipular lips black, entire (crenate only in Glyphis substriatula); exciple: completely carbonized, the excipular base may be poorly developed or not carbonized (in species belonging to subgenus Pallidoglyphis), excipular lips (labia) usually entire (slightly crenate only in Glyphis substriatula), outside often with crystals embedded; hymenium: not inspersed, gelatinous, often I+ pale violet or grayish blue; paraphyses: parallel, the outer wall layers swollen, often anastomosing, tips brown-granular; asci: clavate, I-, apex thickened with ±distinct ocular chamber ('Graphis-type'), 2-8-spored; ascospores: hyaline (old or ±degenerated spores may be pale brown as well), transversely septate or muriform, oblong or oval, often with ±distinct halo, I+ blue-violet; Conidiomata and conidia: not seen; Secondary metabolites: none detected; Geography: tropical to subtropical; Substrate: bark, very seldom on leaves (only; Notes: Glyphis is characterized by a carbonized exciple, brownish granular discs, hyaline ascospores and a special paraphyses-type (parallel but often anastomosing with ±swollen outer wall layers and brown-granular tips). Glyphis is a synonym of Gyrostomum Fr. 
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© Lichen Unlimited: Arizona State University, Tempe.

Source: Lichen Flora of the Greater Sonoran Desert Region

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Ecology

Habitat

Depth range based on 1 specimen in 5 taxa.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 7.3152 - 7.3152
  Temperature range (°C): 20.987 - 20.987
  Nitrate (umol/L): 1.973 - 1.973
  Salinity (PPS): 35.368 - 35.368
  Oxygen (ml/l): 5.203 - 5.203
  Phosphate (umol/l): 0.365 - 0.365
  Silicate (umol/l): 5.377 - 5.377
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:48Public Records:6
Specimens with Sequences:34Public Species:2
Specimens with Barcodes:19Public BINs:2
Species:6         
Species With Barcodes:4         
          
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© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Barcode data

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Glyphis

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© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Wikipedia

River shark

The river sharks are five rare species of shark in the genus Glyphis, although, due to their secretive habits, other species could easily remain undiscovered. Their precise geographic range is uncertain, but the known species are documented in parts of South and Southeast Asia and Australia. The river sharks are members of the family Carcharhinidae, and thus share the basic characteristics of the group. The bull shark (Carcharhinus leucas) is sometimes called both the river shark and the Ganges shark; it should not be confused with the river sharks of Glyphis.

Species[edit]

References[edit]

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