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Authority
Frahm, Jan-Peter. 1991. Dicranaceae: Campylopodioideae, Paraleucobryoideae. Fl. Neotrop. Monogr. 54: 1-238. (Published by NYBG Press)
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Family
Dicranaceae
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Scientific Name
Campylopus cygneus (Hedw.) Brid.
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Type
Type. "India occ.," Swartz s.n. (holotype, G; isotypes, H-SOL, NY, S).
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Synonyms
Campylopus cacuminis (Müll.Hal.) Paris, Campylopus ekmanii Thér., Campylopus elliottii E.B.Bartram, Campylopus jamaicensis Mitt., Campylopus saxatilis R.S.Williams, Dicranum cygneum Hedw., Dicranum cacuminis Müll.Hal.
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Description
Species Description - Plants to 7 cm high, usually smaller, very slender, in loose, light green, glossy tufts. Stems equally foliate except for comose, perichaetia bearing plants, sparsely radiculose. Leaves erect patent, sometimes flexuose, ca. 7 mm long, ending in a very long and fine nearly smooth or only finely denticulate apex. Costa taking 1/3 of the leaf base, excurrent, in ventral view with enlarged cells, in transverse section with large hyaline ventral cells, a median row of deuter cells and groups of stereids at the dorsal side, smooth at back. Alar cells very conspicuous, large, inflated, forming round auricles, protruding into the costa, reddish, rarely hyaline. Basal laminal cells incrassate, nearly subquadrate or very short rectangular (2:1), 13-16 × 38-51 µm, at margins in 1-2 rows elongate and hyaline. Upper laminal cells subquadrate to shortly rectangular, incrassate, 8-10 × 16-22 µm. Vegetative propagation by deciduous stem tips. Seta 8-9 mm long, brownish, sinuose or cygneous. Capsule asymmetric, short oblong, furrowed, strumose. Operculum obliquely rostrate. Calyptra ciliate at base, rarely entire.
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Discussion
Campylopus cygneus is quite variable and has therefore been described under several names.
The variation concerns the length of the leaf tips, the foliation (appressed or comose in female plants) and the lower laminal cells (thick walled and subquadrate to thin walled and hyaline in perichaetial leaves). It is, however, easily recognized by its large auricles protruding into the costa, the elongate, smooth leaf tip, the quadrate upper laminal cells and the large ventral hyalocysts in transverse section of the costa, which are conspicuous also in ventral view on the costa.
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Objects
Specimen - 615385, W. R. Buck 7627, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Cuba, Santiago de Cuba
Specimen - 619771, C. V. Morton 9414, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Cuba
Specimen - 615373, W. R. Maxon 1280, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Jamaica
Specimen - 619766, M. R. Crosby 3515, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Jamaica, Saint Thomas
Specimen - 619765, M. R. Crosby 3506, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Jamaica, Saint Thomas
Specimen - 619769, W. R. Maxon 1300, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Jamaica
Specimen - 619768, E. G. Britton 1145, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Jamaica
Specimen - 615377, G. E. Nichols 75, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Jamaica
Specimen - 615374, W. R. Maxon 10003, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Jamaica
Specimen - 615379, W. H. Harris 10053a, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Jamaica
Specimen - 615361, W. S. Judd 4099, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Haiti
Specimen - 619774, D. H. Norris 7515, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, La Vega
Specimen - 615388, D. H. Norris 5525, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, La Vega
Specimen - 615390, G. C. Jones 1294B, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, La Vega
Specimen - 619776, D. H. Norris 7245, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, La Vega
Specimen - 615386, W. D. Reese 15777, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, La Vega
Specimen - 619772, W. R. Buck 5449, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, La Vega
Specimen - 619773, D. H. Norris 6585, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, Independencia
Specimen - 615389, D. H. Norris 6260, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, Independencia
Specimen - 615364, W. R. Buck 4585, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, Elias Piña
Specimen - 615363, W. D. Reese 15746, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, Peravia
Specimen - 615365, W. D. Reese 15720, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Dominican Republic, Peravia
Specimen - 615371, W. D. Reese 14420, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Puerto Rico
Specimen - 619762, W. C. Steere 5087, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Puerto Rico
Specimen - 619761, W. C. Steere 5298, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Puerto Rico
Specimen - 619763, W. C. Steere 6710, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Puerto Rico
Specimen - 671586, W. D. Reese 14635, Rhynchostegium serrulatum (Hedw.) A.Jaeger, Brachytheciaceae (103.0), Bryophyta; West Indies, Puerto Rico, Adjuntas
Specimen - 615372, W. R. Buck 4036, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Puerto Rico
Specimen - 615371, W. D. Reese 14420, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Puerto Rico
Specimen - 615372, W. R. Buck 4036, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Puerto Rico
Specimen - 666582, W. R. Buck 4048, Macromitrium scoparium Mitt., Orthotrichaceae (52.0), Bryophyta; West Indies, Puerto Rico
Specimen - 619770, G. C. Bucher 54b, Campylopus cygneus (Hedw.) Brid., Dicranaceae (24.0), Bryophyta; West Indies, Cuba
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Distribution
On soil, rotten wood and rocks in montane rainforests in elevations between 1500 and 2500 m, confined to the Caribbean islands Cuba, Jamaica, Hispaniola (Dominican Republic, Haiti), Puerto Rico and the Lesser Antilles, also described as C. setaceus Card, from the Azores.
Cuba South America| Santiago de Cuba Cuba South America| Jamaica South America| Saint Andrew Jamaica South America| Saint Thomas Jamaica South America| Saint Catherine Jamaica South America| Haiti South America| Dominican Republic South America| Independencia Dominican Republic South America| Peravia Dominican Republic South America| Puerto Rico South America|