Abstract
Two widespread, polymorphic, but morphologically similar species of Pleuridium have long confused botanists. The sexual condition (autoicous versus paroicous) and perichaetial leaf lamina thickness (unistratose versus bistratose) morphologically distinguish Pleuridium subulatum from P. acuminatum. Additional evidence from cytological voucher specimens revealed that two chromosome numbers (n = 13 and n = 26) are congruent with the two respective taxa. Pleuridium subulatum (Hedw.) Rabenh. is lectotypified by a specimen from the herbarium of J. Hedwig and Pleuridium acuminatum Lindb. by a specimen from the herbarium of S. O. Lindberg).
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Claims 5
Claim · model-written summary
Sexual condition and perichaetial leaf thickness distinguish Pleuridium subulatum from P. acuminatum.
- Taxon
- Pleuridium subulatum
_6529.jpg?width=60)
Pleuridium subulatume0 - Outcome
- sexual condition (autoicous versus paroicous) and perichaetial leaf lamina thickness (unistratose versus bistratose)e0
- Comparator
- P. acuminatume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_6529.jpg?width=500)
Verbatim
e0“The sexual condition (autoicous versus paroicous) and perichaetial leaf lamina thickness (unistratose versus bistratose) morphologically distinguish Pleuridium subulatum from P. acuminatum”
Claim · model-written summary
Voucher specimens show chromosome number n = 13 for Pleuridium subulatum.
- Taxon
- Pleuridium subulatumPleuridium subulatume1
- Outcome
- chromosome numberse0
- Value
- n = 13e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two chromosome numbers (n = 13 and n = 26) are congruent with the two respective taxa”
e1“Pleuridium subulatum from P. acuminatum”
Claim · model-written summary
Voucher specimens show chromosome number n = 26 for P. acuminatum.
- Taxon
- P. acuminatum
_4001.JPG?width=60)
Pleuridium acuminatume1 - Outcome
- chromosome numberse0
- Value
- n = 26e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_4001.JPG?width=500)
Verbatim
e0“two chromosome numbers (n = 13 and n = 26) are congruent with the two respective taxa”
e1“Pleuridium subulatum from P. acuminatum”
Claim · model-written summary
Pleuridium subulatum is lectotypified by a J. Hedwig herbarium specimen.
- Taxon
- Pleuridium subulatumPleuridium subulatume0
- Outcome
- lectotypified by a specimen from the herbarium of J. Hedwige0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pleuridium subulatum (Hedw.) Rabenh. is lectotypified by a specimen from the herbarium of J. Hedwig”
Claim · model-written summary
Pleuridium acuminatum is lectotypified by a S. O. Lindberg herbarium specimen.
- Taxon
- Pleuridium acuminatumPleuridium acuminatume0
- Outcome
- by a specimen from the herbarium of S. O. Lindberge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pleuridium acuminatum Lindb. by a specimen from the herbarium of S. O. Lindberg”