Abstract
The mature stomatal morphology of 11 southern African species of Eugenia, and also of E. uniflora L. (naturalized) and E. incerta Diimmer (a garden plant of unknown origin) has been studied by light and scanning electron microscopy. Leaves of all the species are hypostomatic and water-stomata are occasionally present. Two different stomatal types, X and Y, differing mainly in their cuticular ornamentation, were found in the southern African species. The grouping of species based on stomatal characters supports a previous grouping of species on the basis of periderm and seed characters. Conspicuous lipid bodies, usually present in the subsidiary cells, are limited to the southern African species. Although the subsidiary cells do not differ in shape and size from adjacent epidermal cells, their contents often have a higher tannin content than ordinary epidermal cells. The variable patterns of arrangement of the three to five subsidiary cells makes it difficult to identify the stomata with existing classifications based on mature topography. Thus, a new term ‘anomostaurocytic’ is proposed for the stomatal type found in the southern African species. Stomata of E. uniflora and E. incerta are paracytic and anomocytic respectively, and the cuticular ornamentation of their stomata differs from those of the southern African species. The view that E. incerta is not closely related to the southern African species is supported by differences in its cuticular ornamentation, lack of lipid bodies in the subsidiary cells, anomocytic stomata and prominent T-pieces at the guard cell poles.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
All examined Eugenia species had stomata on lower leaf surfaces, with occasional water stomata.
Not reportedTaxon
Verbatim
e0“Leaves of all the species are hypostomatic and water-stomata are occasionally present.”
Claim · model-written summary
Southern African Eugenia had two stomatal types differing mainly in cuticle ornamentation.
Not reportedTaxon
Verbatim
e0“Two different stomatal types, X and Y, differing mainly in their cuticular ornamentation, were found in the southern African species.”
Claim · model-written summary
Stomatal grouping supported earlier grouping by periderm and seed characters.
Not reportedTaxon
Verbatim
e0“The grouping of species based on stomatal characters supports a previous grouping of species on the basis of periderm and seed characters.”
Claim · model-written summary
Lipid bodies in subsidiary cells were restricted to southern African species.
Not reportedTaxon
Verbatim
e0“Conspicuous lipid bodies, usually present in the subsidiary cells, are limited to the southern African species.”
Claim · model-written summary
Subsidiary cells often contained more tannin than ordinary epidermal cells.
Not reportedTaxon
Verbatim
e0“their contents often have a higher tannin content than ordinary epidermal cells.”
Claim · model-written summary
Variable arrangements of three to five subsidiary cells made mature-topography classification difficult.
Not reportedTaxon
Verbatim
e0“The variable patterns of arrangement of the three to five subsidiary cells makes it difficult to identify the stomata with existing classifications based on mature topography.”
Claim · model-written summary
The authors proposed anomostaurocytic for the southern African stomatal type.
Not reportedTaxon
Verbatim
e0“a new term ‘anomostaurocytic’ is proposed for the stomatal type found in the southern African species.”
Claim · model-written summary
E. uniflora has paracytic stomata.
- Taxon
- E. uniflora
_no_pampa_ga%C3%BAcho_02.jpg?width=60)
Eugenia uniflorae0 - Outcome
- Stomatae0
- Qualifier
- paracytice0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_no_pampa_ga%C3%BAcho_02.jpg?width=500)
Verbatim
e0“Stomata of E. uniflora and E. incerta are paracytic and anomocytic respectively”
Claim · model-written summary
E. incerta has anomocytic stomata.
- Taxon
- E. incertaEugenia incertae0
- Outcome
- Stomatae0
- Qualifier
- anomocytice0
Verbatim
e0“Stomata of E. uniflora and E. incerta are paracytic and anomocytic respectively”
Claim · model-written summary
Stomatal cuticle ornamentation in E. uniflora and E. incerta differed from southern African species.
Not reportedTaxon
Verbatim
e0“the cuticular ornamentation of their stomata differs from those of the southern African species.”
Claim · model-written summary
Stomatal traits supported E. incerta being distantly related to southern African species.
- Taxon
- E. incertaEugenia incertae0
- Outcome
- not closely relatede0
- Comparator
- southern African speciese0
Verbatim
e0“The view that E. incerta is not closely related to the southern African species is supported by differences in its cuticular ornamentation, lack of lipid bodies in the subsidiary cells, anomocytic stomata and prominent T-pieces at the guard cell poles.”