The genus <i>Acacia</i> Miller in South Africa. I. Stipules and spines
A large number of seedlings and young twigs of South African Acacia species was sectioned and the vascularization of the nodes and internodes studied. The nodes of all the species examined are trilacunate and the vascular tissue of the stipules originates from the lateral leaf traces. The Gummifera...
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| Format: | Article |
| Language: | English |
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South African National Biodiversity Institut
1975-11-01
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| Series: | Bothalia: African Biodiversity & Conservation |
| Online Access: | https://abcjournal.org/index.php/abc/article/view/1488 |
| _version_ | 1818890454898311168 |
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| author | P. J. Robbertse |
| author_facet | P. J. Robbertse |
| author_sort | P. J. Robbertse |
| collection | DOAJ |
| description | A large number of seedlings and young twigs of South African Acacia species was sectioned and the vascularization of the nodes and internodes studied. The nodes of all the species examined are trilacunate and the vascular tissue of the stipules originates from the lateral leaf traces. The Gummiferae species all have spinescent stipules, while stipules of the Vulgares species are membranous. Prickles containing no vascular tissue are found on the nodes and in some species also on the internodes of the Vulgares species. These prickles always occur on the ridges formed on the stem by leaf traces. |
| first_indexed | 2024-12-19T17:25:11Z |
| format | Article |
| id | doaj.art-eb1e31f4acdd4109906e6bac153ebdec |
| institution | Directory Open Access Journal |
| issn | 0006-8241 2311-9284 |
| language | English |
| last_indexed | 2024-12-19T17:25:11Z |
| publishDate | 1975-11-01 |
| publisher | South African National Biodiversity Institut |
| record_format | Article |
| series | Bothalia: African Biodiversity & Conservation |
| spelling | doaj.art-eb1e31f4acdd4109906e6bac153ebdec2022-12-21T20:12:35ZengSouth African National Biodiversity InstitutBothalia: African Biodiversity & Conservation0006-82412311-92841975-11-0111447347910.4102/abc.v11i4.14881419The genus <i>Acacia</i> Miller in South Africa. I. Stipules and spinesP. J. Robbertse0Department of General Botany, University of PretoriaA large number of seedlings and young twigs of South African Acacia species was sectioned and the vascularization of the nodes and internodes studied. The nodes of all the species examined are trilacunate and the vascular tissue of the stipules originates from the lateral leaf traces. The Gummiferae species all have spinescent stipules, while stipules of the Vulgares species are membranous. Prickles containing no vascular tissue are found on the nodes and in some species also on the internodes of the Vulgares species. These prickles always occur on the ridges formed on the stem by leaf traces.https://abcjournal.org/index.php/abc/article/view/1488 |
| spellingShingle | P. J. Robbertse The genus <i>Acacia</i> Miller in South Africa. I. Stipules and spines Bothalia: African Biodiversity & Conservation |
| title | The genus <i>Acacia</i> Miller in South Africa. I. Stipules and spines |
| title_full | The genus <i>Acacia</i> Miller in South Africa. I. Stipules and spines |
| title_fullStr | The genus <i>Acacia</i> Miller in South Africa. I. Stipules and spines |
| title_full_unstemmed | The genus <i>Acacia</i> Miller in South Africa. I. Stipules and spines |
| title_short | The genus <i>Acacia</i> Miller in South Africa. I. Stipules and spines |
| title_sort | genus i acacia i miller in south africa i stipules and spines |
| url | https://abcjournal.org/index.php/abc/article/view/1488 |
| work_keys_str_mv | AT pjrobbertse thegenusiacaciaimillerinsouthafricaistipulesandspines AT pjrobbertse genusiacaciaimillerinsouthafricaistipulesandspines |