The taxonomic value of epidermal characters in the leaf of <i>Heteromorpha</i> and some related genera (Apiaceae)
All 17 species of Heteromorpha Cham. & Schltdl. (sensu Humbert 1956), all three species of Polemannia Eckl. & Zeyh. and the monotypic Polemanniopsis B.L. Burtt were investigated for leaf epidermal characters. Stomatal type was anomocvtic. with an exception in only one Madagascar species, H....
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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South African National Biodiversity Institut
1994-10-01
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| Series: | Bothalia: African Biodiversity & Conservation |
| Subjects: | |
| Online Access: | https://abcjournal.org/index.php/abc/article/view/770 |
| _version_ | 1818228248287379456 |
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| author | P. J. D. Winter B-E. van Wyk |
| author_facet | P. J. D. Winter B-E. van Wyk |
| author_sort | P. J. D. Winter |
| collection | DOAJ |
| description | All 17 species of Heteromorpha Cham. & Schltdl. (sensu Humbert 1956), all three species of Polemannia Eckl. & Zeyh. and the monotypic Polemanniopsis B.L. Burtt were investigated for leaf epidermal characters. Stomatal type was anomocvtic. with an exception in only one Madagascar species, H. betsileensis. The distribution and density of stomata (on both leaf surfaces) are diagnostic for some species. The number, size and outline of normal epidermal cells are different in juvenile and adult leaves and these differences vary between species. Seven trichome types are recognized which, when combined with dispersion pattern, also serve to characterise the various species and forms. |
| first_indexed | 2024-12-12T09:59:41Z |
| format | Article |
| id | doaj.art-e5ecdc102ddd40959768f3ffcdf1e928 |
| institution | Directory Open Access Journal |
| issn | 0006-8241 2311-9284 |
| language | English |
| last_indexed | 2024-12-12T09:59:41Z |
| publishDate | 1994-10-01 |
| publisher | South African National Biodiversity Institut |
| record_format | Article |
| series | Bothalia: African Biodiversity & Conservation |
| spelling | doaj.art-e5ecdc102ddd40959768f3ffcdf1e9282022-12-22T00:28:01ZengSouth African National Biodiversity InstitutBothalia: African Biodiversity & Conservation0006-82412311-92841994-10-0124218719410.4102/abc.v24i2.770701The taxonomic value of epidermal characters in the leaf of <i>Heteromorpha</i> and some related genera (Apiaceae)P. J. D. Winter0B-E. van Wyk1Department of Botany, Rand Afrikaans UniversityDepartment of Botany, Rand Afrikaans UniversityAll 17 species of Heteromorpha Cham. & Schltdl. (sensu Humbert 1956), all three species of Polemannia Eckl. & Zeyh. and the monotypic Polemanniopsis B.L. Burtt were investigated for leaf epidermal characters. Stomatal type was anomocvtic. with an exception in only one Madagascar species, H. betsileensis. The distribution and density of stomata (on both leaf surfaces) are diagnostic for some species. The number, size and outline of normal epidermal cells are different in juvenile and adult leaves and these differences vary between species. Seven trichome types are recognized which, when combined with dispersion pattern, also serve to characterise the various species and forms.https://abcjournal.org/index.php/abc/article/view/770Apiaceaeepidermis<i>Heteromorpha</i><i>Polemannia</i><i>Polemanniopsis</i>stomatataxonomytrichomesvestiture |
| spellingShingle | P. J. D. Winter B-E. van Wyk The taxonomic value of epidermal characters in the leaf of <i>Heteromorpha</i> and some related genera (Apiaceae) Bothalia: African Biodiversity & Conservation Apiaceae epidermis <i>Heteromorpha</i> <i>Polemannia</i> <i>Polemanniopsis</i> stomata taxonomy trichomes vestiture |
| title | The taxonomic value of epidermal characters in the leaf of <i>Heteromorpha</i> and some related genera (Apiaceae) |
| title_full | The taxonomic value of epidermal characters in the leaf of <i>Heteromorpha</i> and some related genera (Apiaceae) |
| title_fullStr | The taxonomic value of epidermal characters in the leaf of <i>Heteromorpha</i> and some related genera (Apiaceae) |
| title_full_unstemmed | The taxonomic value of epidermal characters in the leaf of <i>Heteromorpha</i> and some related genera (Apiaceae) |
| title_short | The taxonomic value of epidermal characters in the leaf of <i>Heteromorpha</i> and some related genera (Apiaceae) |
| title_sort | taxonomic value of epidermal characters in the leaf of i heteromorpha i and some related genera apiaceae |
| topic | Apiaceae epidermis <i>Heteromorpha</i> <i>Polemannia</i> <i>Polemanniopsis</i> stomata taxonomy trichomes vestiture |
| url | https://abcjournal.org/index.php/abc/article/view/770 |
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