| dc.creator | Vieira M.F. | |
| dc.creator | Shepherd G.J. | |
| dc.date | 2002 | |
| dc.date | 2015-06-30T16:41:35Z | |
| dc.date | 2015-11-26T15:31:57Z | |
| dc.date | 2015-06-30T16:41:35Z | |
| dc.date | 2015-11-26T15:31:57Z | |
| dc.date.accessioned | 2018-03-28T22:40:25Z | |
| dc.date.available | 2018-03-28T22:40:25Z | |
| dc.identifier | | |
| dc.identifier | Plant Systematics And Evolution. , v. 233, n. 3-4, p. 199 - 206, 2002. | |
| dc.identifier | 3782697 | |
| dc.identifier | 10.1007/s00606-002-0204-2 | |
| dc.identifier | http://www.scopus.com/inward/record.url?eid=2-s2.0-0036808685&partnerID=40&md5=dc1e6895d9369f46688bd7cfe8ae1f9d | |
| dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/101588 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/101588 | |
| dc.identifier | 2-s2.0-0036808685 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1262359 | |
| dc.description | The floral morphology of seven Oxypetalum species and, in particular, the spatial relationship between the five stigmatic chambers and two separate ovaries of their flowers with respect to transmission of the pollen tube are studied. In all species, except O. banksii subsp. banksii, floral morphology is similar to that in other Asclepiadeae, and the flowers pollinated with one pollinium develop only one follicle, which means compitum absence. In O. banksii subsp. banksii flowers, the secretory interstaminal tissue lines the inner walls of the stigmatic chambers as in the other species studied, but it also reaches the upper part of the inner surface of the filament tube, where it surrounds the styles, an unprecedented feature for Asclepiadaceae. This tissue secretes nectar and mucilage; the latter acts as transmitting medium for the growth of pollen tubes from pollinia inserted and hydrated in stigmatic chambers ("hyperstigmas"). Mucilage also functions as an extragynoecial compitum: in flowers pollinated with one pollinium both carpels develop into a follicle. | |
| dc.description | 233 | |
| dc.description | 3-4 | |
| dc.description | 199 | |
| dc.description | 206 | |
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| dc.description | Vieira, M.F., Shepherd, G.J., Removal and insertion of pollinia in flowers of Oxypetalum (Asclepiadaceae) in southeastern Brazil (2002) Rev. Biol. Trop., p. 50. , in press | |
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| dc.language | en | |
| dc.publisher | | |
| dc.relation | Plant Systematics and Evolution | |
| dc.rights | fechado | |
| dc.source | Scopus | |
| dc.title | Oxypetalum Banksii Subsp. Banksii: A Taxon Of Asclepiadaceae With An Extragynoecial Compitum | |
| dc.type | Artículos de revistas | |
