caa a22 4500 475806433 CHVBK 20180406123748.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1007/BF00985281 doi (NATIONALLICENCE)springer-10.1007/BF00985281 The pollination of Stenorrhynchos lanceolatus (Aublet) L. C. Rich. (Orchidaceae: Spiranthinae) by hummingbirds in southeastern Brazil [Elektronische Daten] [R. Singer, M. Sazima] Hummingbird pollination is documented for a natural population ofStenorrhynchos lanceolatus Aublet. L. C. Rich. occurring in Rio de Janeiro State, southeastern Brazil. At the study site the plants are pollinated byPhaethornis eurynome (Phaethorninae),Thalurania glaucopis (females only) andLeucochloris albicollis (Trochilinae). The plants offer nectar as a reward and the pollinaria become stuck to the surface of the hummingbird's bill while it is probing the flowers. The orchid population received a few (0-4) hummingbird visits per day, with about 83% of the flowers being pollinated. In spite of the low frequency of visits, the granular structure of the pollinarium plus the behaviour of the most frequent pollinators, which tend to visit all the fresh-looking flowers of each inflorescence, a very high fruiting success was promoted. Experimental evidence suggests that the pollinaria may remain up to 6.30 hours on the hummingbird's bill, enhancing the chances of cross-pollination and long-distance pollen flow. Springer-Verlag, 2000 Orchids nationallicence Spiranthinae nationallicence pollination nationallicence hummingbirds nationallicence Stenorrhynchos lanceolatus nationallicence Singer R. Depto. Botânica, IB, Universidade Estadual de Campinas, Caixa Postal 6109, 13083-970, Campinas, SP, Brasil aut Sazima M. Depto. Botânica, IB, Universidade Estadual de Campinas, Caixa Postal 6109, 13083-970, Campinas, SP, Brasil aut Plant Systematics and Evolution Springer-Verlag 223/3-4(2000-09-01), 221-227 0378-2697 223:3-4<221 2000 223 606 https://doi.org/10.1007/BF00985281 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00985281 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Singer R. Depto. Botânica, IB, Universidade Estadual de Campinas, Caixa Postal 6109, 13083-970, Campinas, SP, Brasil aut NATIONALLICENCE 700 1- Sazima M. Depto. Botânica, IB, Universidade Estadual de Campinas, Caixa Postal 6109, 13083-970, Campinas, SP, Brasil aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 223/3-4(2000-09-01), 221-227 0378-2697 223:3-4<221 2000 223 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer