Abstract
The microscopic anatomy of the vegetative parts of Petermannia cirrhosa is described for the first time. This information lends support to the exclusion of Petermannia from the Dioscorea-ceae with which it has been tentatively associated, the vascular anatomy of the two being quite dissimilar. No satisfactory explanation of the peculiar leaf-opposed position of the tendrils (inflorescence homologues) can be offered, except that it clearly cannot be accounted for by sympodial growth. Vascular tissues in Petermannia are very unspecialized.
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Claims 4
Claim · model-written summary
The vegetative microscopic anatomy of Petermannia cirrhosa was described for the first time.
Verbatim
e0“The microscopic anatomy of the vegetative parts of Petermannia cirrhosa is described for the first time.”
Claim · model-written summary
Petermannia vascular anatomy differs from that of Dioscorea-ceae, supporting its exclusion from that group.
- Taxon
- PetermanniaPetermanniae0
- Outcome
- vascular anatomye0
- Comparator
- Dioscorea-ceaee0
Not reportedDirection
Verbatim
e0“This information lends support to the exclusion of Petermannia from the Dioscorea-ceae with which it has been tentatively associated, the vascular anatomy of the two being quite dissimilar.”
Claim · model-written summary
Sympodial growth cannot explain the leaf-opposed position of Petermannia tendrils.
- Taxon
- PetermanniaPetermanniat0
- Outcome
- leaf-opposed position of the tendrilse0
- Qualifier
- sympodial growthe0
Not reportedDirection
Verbatim
e0“No satisfactory explanation of the peculiar leaf-opposed position of the tendrils (inflorescence homologues) can be offered, except that it clearly cannot be accounted for by sympodial growth.”
t0“Petermanniaceae”
Claim · model-written summary
Petermannia vascular tissues are very unspecialized.
- Taxon
- PetermanniaPetermanniae0
- Outcome
- Vascular tissuese0
Verbatim
e0“Vascular tissues in Petermannia are very unspecialized.”