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Published In: Species Muscorum Frondosorum 47. pl. 7: f. 2: g–p. 1801. (Sp. Musc. Frond.) Name publication detail

Project Name Data (Last Modified On 3/22/2011)
Acceptance : Accepted
Project data     (Last Modified On 3/23/2011)
Discussion: This variable species is separated from Andreaea alpestris by its narrower, densely papillose leaves, longer, sinuose and porose upper median leaf cells, and acute leaf apices. When dry the leaves are spreading to appressed rather than imbricate-appressed. In general aspect this species resembles a Grimmia or Bryomanginia, two genera with costate leaves. Andreaea turgescens Schimp. ex C. Müll has been reported from Costa Rica (Bartram 1928), but the specimen on which the report was based (Standley 43610) could not be located in either US or FH. Iwatsuki (in Sharp, Crum and Eckel 1993) treats A. turgescens as a synonym of A. rupestris.
Illustrations: Hedwig (1801, Tab. 7 G–N); Husnot (1884, Pl. 1); Braithwaite (1887, Pl. 1 A); Brotherus (1914, Pl. 1, as A. petrophila); Grout (1903, Pl. 6, as A. petrophila); Dixon and Jameson (1924, Tab. 4 A, as A. petrophila); Bartram (1933, ig. 3); Sharp (1936, Pl. 1 A); Bartram (1949, Fig. 3 A–C); Nyholm (1969, Fig. 453 ); Allison and Child (1971, p. 33); Lawton (1971, Pl. 4 19–29); Scott and Stone (1976, Pl. 1); Magill (1981, Fig. 7 11–24); Smith (1978, Fig. 30 5–7); Crum and Anderson (1981, Fig. 24 A–F); Ireland (1982, Pl. 45); Crum (1983, Fig. 15 A–E); Abramov and Abramova (1983, Pl. 3); Murray (1987, Fig. 7); Murray (1988, Fig. 21).
Habitat: On siliceous rocks; 2900–4600 m.
Distribution in Central America: GUATEMALA. San Marcos: Steyermark 35542 (F, FH); Sololá: Steyermark 47494 (F, FH). COSTA RICA. San José: Griffin et al. 19983 (US).
World Range: Subarctic America, Western and Eastern Canada, Northwestern, North-Central, Northeastern, Southwestern, and Southeastern U.S.A.; Mexico; Central America; Caribbean, Western and Northern South America, Brazil; Northern, Southwestern, Middle, East and Southeastern Europe; Western Asia, Caucasus, Soviet Middle Asia, Siberia, Soviet Far East, Mongolia, China, Eastern Asia; Macaronesia, Southern Africa; Australia, New Zealand; Antarctica.


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Andreaea rupestris Hedw., Sp. Musc. Frond. 47. 1801.

Syntypes. Sweden, England, "Bructeri" and Germany, sin. coll.

Plants small to medium sized, 1–3 cm high. Leaves frequently with a whitish bloom, 1–2 mm long, crowded, spreading to appressed when dry, ovate- to oblong-lanceolate, weakly constricted and panduriform above the base, concave; apices acute to bluntly acute; margins thick, erect, entire (perichaetial leaves shortly and bluntly dentate); ecostate; upper median cells 15–19 µm × 10 µm, short-rectangular, upper marginal cells quadrate, median cells distinctly longer than the marginal cells, strongly incrassate, and porose throughout, the upper cells with stellate lumina commonly with large, thick papillae on the dorsal surface (occasionally on ventral), basal cells 50–75 µm × 10 µm, long rectangular. Sporophytes not seen in Central America.


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