Difference between revisions of "Acaulon muticum var. muticum"

unknown
Treatment appears in FNA Volume 27. Treatment on page 639.
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|elevation=low to moderate elevations
 
|elevation=low to moderate elevations
 
|distribution=Calif.;Iowa;Kans.;Mass.;N.Y.;N.C.;Okla.;Tenn.;Tex.;Europe;Asia;Africa.
 
|distribution=Calif.;Iowa;Kans.;Mass.;N.Y.;N.C.;Okla.;Tenn.;Tex.;Europe;Asia;Africa.
|discussion=<p>It may be suspected that young plants of both var. muticum and var. rufescens sometimes have smooth, somewhat elliptic spores. A collection from Texas (Bastrop County, Bastrop, F. McAllister, Feb. 1934, A. J. Grout, North American Musci Perfecti 258, UBC) has spheric, heavily papillose spores, 40–45 µm. Specimens with partially smooth spores but a few large granules adherent or scattered through the spore sac (e.g., Oregon, Lane County, Eugene, Alton Baker Park, D. Wagner 1834, Mar. 9, 1978, UBC) are here placed tentatively with the typical variety. A specimen from Iowa (Poweshiek County, Conard & Peck v.11.35, MO) has leaves blotched red in KOH and, variably among capsules, weakly papillose to distinctly crowded-spiculose spores.</p>
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|discussion=<p>It may be suspected that young plants of both <i></i>var.<i> muticum</i> and <i></i>var.<i> rufescens</i> sometimes have smooth, somewhat elliptic spores. A collection from Texas (Bastrop County, Bastrop, F. McAllister, Feb. 1934, A. J. Grout, North American Musci Perfecti 258, UBC) has spheric, heavily papillose spores, 40–45 µm. Specimens with partially smooth spores but a few large granules adherent or scattered through the spore sac (e.g., Oregon, Lane County, Eugene, Alton Baker Park, D. Wagner 1834, Mar. 9, 1978, UBC) are here placed tentatively with the typical variety. A specimen from Iowa (Poweshiek County, Conard & Peck v.11.35, MO) has leaves blotched red in KOH and, variably among capsules, weakly papillose to distinctly crowded-spiculose spores.</p>
 
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|publication year=
 
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|special status=
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V27/V27_943.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V27/V27_943.xml
 
|subfamily=Pottiaceae subfam. Pottioideae
 
|subfamily=Pottiaceae subfam. Pottioideae
 
|genus=Acaulon
 
|genus=Acaulon

Revision as of 16:58, 18 September 2019

Plants yellow-brown in nature. Spores densely low spiculose-papillose.


Phenology: Capsules mature late fall to spring.
Habitat: Soil, among grasses, pastures
Elevation: low to moderate elevations

Distribution

V27 943-distribution-map.gif

Calif., Iowa, Kans., Mass., N.Y., N.C., Okla., Tenn., Tex., Europe, Asia, Africa.

Discussion

It may be suspected that young plants of both var. muticum and var. rufescens sometimes have smooth, somewhat elliptic spores. A collection from Texas (Bastrop County, Bastrop, F. McAllister, Feb. 1934, A. J. Grout, North American Musci Perfecti 258, UBC) has spheric, heavily papillose spores, 40–45 µm. Specimens with partially smooth spores but a few large granules adherent or scattered through the spore sac (e.g., Oregon, Lane County, Eugene, Alton Baker Park, D. Wagner 1834, Mar. 9, 1978, UBC) are here placed tentatively with the typical variety. A specimen from Iowa (Poweshiek County, Conard & Peck v.11.35, MO) has leaves blotched red in KOH and, variably among capsules, weakly papillose to distinctly crowded-spiculose spores.

Selected References

None.

Lower Taxa

None.
Richard H. Zander +
unknown +
Phascum muticum +
Calif. +, Iowa +, Kans. +, Mass. +, N.Y. +, N.C. +, Okla. +, Tenn. +, Tex. +, Europe +, Asia +  and Africa. +
low to moderate elevations +
Soil, among grasses, pastures +
Capsules mature late fall to spring. +
Bot. Zeitung (Berlin) +
Acaulon muticum var. muticum +
Acaulon muticum +
variety +