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Achene Microstructure In Eriophorum L. (Cyperaceae): Systematic Implications And Paleobotanical Applications, Gordon C. Tucker, Norton G. Miller
Achene Microstructure In Eriophorum L. (Cyperaceae): Systematic Implications And Paleobotanical Applications, Gordon C. Tucker, Norton G. Miller
Gordon C. Tucker
Silica bodies in the outer cells of the achene epidermis in 17 species of Eriophorum-and nine species of Scirpus, some of which have been placed in Eriophorum, were revealed by sonication and/or acetolysis and examined by scanning electron microscopy. A silica body consists of a basal platform, one or more large elevated protuberances, and sometimes smaller satellite protuberances. Individual species differ in the number of protuberances, the presence/absence of satellites, the texture of the platform, and the occurrence of nodules on the larger protuberances. These features, combined with achene shape and characteristics of the anticlinal walls of the epidermal cells …
New Mesoamerican Species Of Cyperus (Cyperaceae), Gordon C. Tucker
New Mesoamerican Species Of Cyperus (Cyperaceae), Gordon C. Tucker
Gordon C. Tucker
Four species of the genus Cyperus are described, illustrated, and compared to their nearest relatives. These are: C. matudae and C. breedlovei (Subgenus Protocyperus) from the Pacific slope of Chiapas, Mexico; and C. wilburii and C. svensonii (Subgenus Cyperus) from the lowlands of the Isthmus of Tehuantepec, and from the uplands of Chiapas, Guatemala, Honduras, and Nicaragua, respectively.
Cyperus Flavicomus, The Correct Name For Cyperus Albomarginatus, Gordon C. Tucker
Cyperus Flavicomus, The Correct Name For Cyperus Albomarginatus, Gordon C. Tucker
Gordon C. Tucker
The correct name for Cyperus albomarginatus, a pantropical and warm-temperate sedge, is shown to be C. jlavicomus Michaux.