Taxonomy and leaf anatomy of the genus <i>Ehrharta</i> (Poaceae) in southern Africa: the Ramosa group
The Ramosa species group in the genus Ehrharta is distinguished morphologically by small spikelets with sterile lemmas similar to each other, with tips rounded, truncate or mucronate, with sides glabrous, scabrous or shortly hairy, and with bases appendaged and usually bearded. The rectangular inter...
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| Format: | Article |
| Language: | English |
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South African National Biodiversity Institut
1989-12-01
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| Series: | Bothalia: African Biodiversity & Conservation |
| Subjects: | |
| Online Access: | https://abcjournal.org/index.php/abc/article/view/959 |
| _version_ | 1818241206718562304 |
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| author | G. E. Gibbs Russel R. P. Ellis |
| author_facet | G. E. Gibbs Russel R. P. Ellis |
| author_sort | G. E. Gibbs Russel |
| collection | DOAJ |
| description | The Ramosa species group in the genus Ehrharta is distinguished morphologically by small spikelets with sterile lemmas similar to each other, with tips rounded, truncate or mucronate, with sides glabrous, scabrous or shortly hairy, and with bases appendaged and usually bearded. The rectangular intercostal long cells with sinuous walls, the dome-shaped stomata with a raised rim surrounding the pore aperture, the absence of epicuticular wax and the microhairs without a tapering distal cell are diagnostic anatomically. The Ramosa group is composed of two species: E. ramosa (Thunb.) Swartz subsp. ramosa, subsp. aphylla (Schrad.) Gibbs Russell and E. rehmannii Stapf subsp. rehmannii; subsp. filiformis (Nees) Gibbs Russell; subsp. subspicata (Stapf) Gibbs Russell. All taxa are linked by intermediates to one or two others in the group. The closest relationship of the Ramosa group is to the Calyeina species group, on the basis of both morphological and anatomical characters. |
| first_indexed | 2024-12-12T13:25:39Z |
| format | Article |
| id | doaj.art-10683b06ba764865ad7a810bbfe45cd6 |
| institution | Directory Open Access Journal |
| issn | 0006-8241 2311-9284 |
| language | English |
| last_indexed | 2024-12-12T13:25:39Z |
| publishDate | 1989-12-01 |
| publisher | South African National Biodiversity Institut |
| record_format | Article |
| series | Bothalia: African Biodiversity & Conservation |
| spelling | doaj.art-10683b06ba764865ad7a810bbfe45cd62022-12-22T00:23:11ZengSouth African National Biodiversity InstitutBothalia: African Biodiversity & Conservation0006-82412311-92841989-12-0119218920710.4102/abc.v19i2.959888Taxonomy and leaf anatomy of the genus <i>Ehrharta</i> (Poaceae) in southern Africa: the Ramosa groupG. E. Gibbs Russel0R. P. Ellis1Botanical Research Institute, Department of Agriculture and Water SupplyBotanical Research Institute, Department of Agriculture and Water SupplyThe Ramosa species group in the genus Ehrharta is distinguished morphologically by small spikelets with sterile lemmas similar to each other, with tips rounded, truncate or mucronate, with sides glabrous, scabrous or shortly hairy, and with bases appendaged and usually bearded. The rectangular intercostal long cells with sinuous walls, the dome-shaped stomata with a raised rim surrounding the pore aperture, the absence of epicuticular wax and the microhairs without a tapering distal cell are diagnostic anatomically. The Ramosa group is composed of two species: E. ramosa (Thunb.) Swartz subsp. ramosa, subsp. aphylla (Schrad.) Gibbs Russell and E. rehmannii Stapf subsp. rehmannii; subsp. filiformis (Nees) Gibbs Russell; subsp. subspicata (Stapf) Gibbs Russell. All taxa are linked by intermediates to one or two others in the group. The closest relationship of the Ramosa group is to the Calyeina species group, on the basis of both morphological and anatomical characters.https://abcjournal.org/index.php/abc/article/view/959Capensisculm anatomy<i>Ehrharta</i>Fynbosleaf anatomyPoaceaetaxonomy |
| spellingShingle | G. E. Gibbs Russel R. P. Ellis Taxonomy and leaf anatomy of the genus <i>Ehrharta</i> (Poaceae) in southern Africa: the Ramosa group Bothalia: African Biodiversity & Conservation Capensis culm anatomy <i>Ehrharta</i> Fynbos leaf anatomy Poaceae taxonomy |
| title | Taxonomy and leaf anatomy of the genus <i>Ehrharta</i> (Poaceae) in southern Africa: the Ramosa group |
| title_full | Taxonomy and leaf anatomy of the genus <i>Ehrharta</i> (Poaceae) in southern Africa: the Ramosa group |
| title_fullStr | Taxonomy and leaf anatomy of the genus <i>Ehrharta</i> (Poaceae) in southern Africa: the Ramosa group |
| title_full_unstemmed | Taxonomy and leaf anatomy of the genus <i>Ehrharta</i> (Poaceae) in southern Africa: the Ramosa group |
| title_short | Taxonomy and leaf anatomy of the genus <i>Ehrharta</i> (Poaceae) in southern Africa: the Ramosa group |
| title_sort | taxonomy and leaf anatomy of the genus i ehrharta i poaceae in southern africa the ramosa group |
| topic | Capensis culm anatomy <i>Ehrharta</i> Fynbos leaf anatomy Poaceae taxonomy |
| url | https://abcjournal.org/index.php/abc/article/view/959 |
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