Festuca drakensbergensis (Poaceae): A common new species in the F. caprina complex from the Drakensberg Mountain Centre of Floristic Endemism, southern Africa, with key and notes on taxa in the complex including the overlooked F. exaristata
We present taxonomic notes on the Festuca caprina complex from southern Africa that includes description and illustration of the new species F. drakensbergensis from the Drakensberg Mountain Centre of Floristic Endemism of South Africa and Lesotho. Festuca drakensbergensis can be differentiated from...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2020-10-01
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| Series: | PhytoKeys |
| Online Access: | https://phytokeys.pensoft.net/article/55550/download/pdf/ |
| _version_ | 1811259721550659584 |
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| author | Steven P. Sylvester Robert J. Soreng Mitsy D. P. V. Sylvester Vincent Ralph Clark |
| author_facet | Steven P. Sylvester Robert J. Soreng Mitsy D. P. V. Sylvester Vincent Ralph Clark |
| author_sort | Steven P. Sylvester |
| collection | DOAJ |
| description | We present taxonomic notes on the Festuca caprina complex from southern Africa that includes description and illustration of the new species F. drakensbergensis from the Drakensberg Mountain Centre of Floristic Endemism of South Africa and Lesotho. Festuca drakensbergensis can be differentiated from F. caprina s.l. by forming lax short tufts with extravaginally-branching tillers and lateral-tending cataphyllous shoots or rhizomes present, basal foliage reaching < ½ the length of the culms, with generally shorter leaves and shorter anthers, 0.8−1.6(−1.8) mm long. The species also differs from the overlooked species F. exaristata – currently known from two collections from Lesotho − by its fibrous basal sheaths, usually sharp, keel-like leaf blade midrib, drooping panicle with lightly to densely scabrous pendent panicle branches, longer lemmas, 4.5−5.8 mm long, with awns usually present, 0.5–3 mm long, ovary apices sparsely to densely hairy and anthers 0.8−1.6(−1.8) mm long. Taxonomic notes on the different taxa of the F. caprina complex in southern Africa are also provided, including images, key, and lectotypification of F. caprina var. curvula. This research adds a further two endemic species (F. drakensbergensis and F. exaristata) and two endemic varieties (F. caprina var. irrasa and F. caprina var. macra) to the Drakensberg Mountain Centre of Floristic Endemism. |
| first_indexed | 2024-04-12T18:35:59Z |
| format | Article |
| id | doaj.art-7571fcbb32e440d2a60db1e98c5bd76d |
| institution | Directory Open Access Journal |
| issn | 1314-2003 |
| language | English |
| last_indexed | 2024-04-12T18:35:59Z |
| publishDate | 2020-10-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | PhytoKeys |
| spelling | doaj.art-7571fcbb32e440d2a60db1e98c5bd76d2022-12-22T03:20:56ZengPensoft PublishersPhytoKeys1314-20032020-10-01162456910.3897/phytokeys.162.5555055550Festuca drakensbergensis (Poaceae): A common new species in the F. caprina complex from the Drakensberg Mountain Centre of Floristic Endemism, southern Africa, with key and notes on taxa in the complex including the overlooked F. exaristataSteven P. Sylvester0Robert J. Soreng1Mitsy D. P. V. Sylvester2Vincent Ralph Clark3Nanjing Forestry UniversitySmithsonian InstitutionNanjing Forestry UniversityUniversity of the Free StateWe present taxonomic notes on the Festuca caprina complex from southern Africa that includes description and illustration of the new species F. drakensbergensis from the Drakensberg Mountain Centre of Floristic Endemism of South Africa and Lesotho. Festuca drakensbergensis can be differentiated from F. caprina s.l. by forming lax short tufts with extravaginally-branching tillers and lateral-tending cataphyllous shoots or rhizomes present, basal foliage reaching < ½ the length of the culms, with generally shorter leaves and shorter anthers, 0.8−1.6(−1.8) mm long. The species also differs from the overlooked species F. exaristata – currently known from two collections from Lesotho − by its fibrous basal sheaths, usually sharp, keel-like leaf blade midrib, drooping panicle with lightly to densely scabrous pendent panicle branches, longer lemmas, 4.5−5.8 mm long, with awns usually present, 0.5–3 mm long, ovary apices sparsely to densely hairy and anthers 0.8−1.6(−1.8) mm long. Taxonomic notes on the different taxa of the F. caprina complex in southern Africa are also provided, including images, key, and lectotypification of F. caprina var. curvula. This research adds a further two endemic species (F. drakensbergensis and F. exaristata) and two endemic varieties (F. caprina var. irrasa and F. caprina var. macra) to the Drakensberg Mountain Centre of Floristic Endemism.https://phytokeys.pensoft.net/article/55550/download/pdf/ |
| spellingShingle | Steven P. Sylvester Robert J. Soreng Mitsy D. P. V. Sylvester Vincent Ralph Clark Festuca drakensbergensis (Poaceae): A common new species in the F. caprina complex from the Drakensberg Mountain Centre of Floristic Endemism, southern Africa, with key and notes on taxa in the complex including the overlooked F. exaristata PhytoKeys |
| title | Festuca drakensbergensis (Poaceae): A common new species in the F. caprina complex from the Drakensberg Mountain Centre of Floristic Endemism, southern Africa, with key and notes on taxa in the complex including the overlooked F. exaristata |
| title_full | Festuca drakensbergensis (Poaceae): A common new species in the F. caprina complex from the Drakensberg Mountain Centre of Floristic Endemism, southern Africa, with key and notes on taxa in the complex including the overlooked F. exaristata |
| title_fullStr | Festuca drakensbergensis (Poaceae): A common new species in the F. caprina complex from the Drakensberg Mountain Centre of Floristic Endemism, southern Africa, with key and notes on taxa in the complex including the overlooked F. exaristata |
| title_full_unstemmed | Festuca drakensbergensis (Poaceae): A common new species in the F. caprina complex from the Drakensberg Mountain Centre of Floristic Endemism, southern Africa, with key and notes on taxa in the complex including the overlooked F. exaristata |
| title_short | Festuca drakensbergensis (Poaceae): A common new species in the F. caprina complex from the Drakensberg Mountain Centre of Floristic Endemism, southern Africa, with key and notes on taxa in the complex including the overlooked F. exaristata |
| title_sort | festuca drakensbergensis poaceae a common new species in the f caprina complex from the drakensberg mountain centre of floristic endemism southern africa with key and notes on taxa in the complex including the overlooked f exaristata |
| url | https://phytokeys.pensoft.net/article/55550/download/pdf/ |
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