Notes on African Plants
Leaf anatomy of the South African Danthonieae (Poaceae). XIV. Pentameris dregeana
Submitted: 28 October 1986 | Published: 28 October 1986
About the author(s)
R. P. Ellis, Botanical Research Institute. Department of Agriculture and Water Supply, South AfricaFull Text:
PDF (2MB)Abstract
Transverse sections and abaxial epidermal scrapes of leaf blades of Pentameris dregeana Stapf, both of herbarium specimens and of freshly fixed material, were examined by light microscopy. The anatomical structure was found to be basically uniform in a representative sample. A few somewhat atypical specimens, how'ever, showed epidermal similarities with Pentaschistis colorata (Steud.) Stapf. A comparison with other danthonoid grasses revealed some specimens identified as Pentaschistis colorata var. polytricha Stapf which resemble Pentameris dregeana very closely in leaf anatomy. A definite gradation in leaf anatomy between Pentameris dregeana and Pentaschistis colorata appears to exist and. consequently, it is proposed that the affinities of Pentameris dregeana lie with this group of Pentaschistis species rather than close to any of the other Pentameris species.
Keywords
Metrics
Total abstract views: 1516Total article views: 1429
Crossref Citations
1. Polyphyly of Arundinoideae (Poaceae) and evolution of the twisted geniculate lemma awn
J K Teisher, M R McKain, B A Schaal, E A Kellogg
Annals of Botany vol: 120 issue: 5 first page: 725 year: 2017
doi: 10.1093/aob/mcx058