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Titolo:
SELENICEREUS-WITTII (CACTACEAE) - AN EPIPHYTE ADAPTED TO AMAZONIAN IGAPO INUNDATION FORESTS
Autore:
BARTHLOTT W; POREMBSKI S; KLUGE M; HOPKE J; SCHMIDT L;
Indirizzi:
UNIV BONN,INST BOT,MECKENHEIMER ALLEE 170 D-53115 BONN GERMANY TH DARMSTADT,INST BOT D-64287 DARMSTADT GERMANY UNIV BONN,INST ORGAN CHEM D-53121 BONN GERMANY STIFTUNG SCHUTZE GEFAHRDETER PFLANZEN EV D-20099 HAMBURG GERMANY
Titolo Testata:
Plant systematics and evolution
fascicolo: 1-4, volume: 206, anno: 1997,
pagine: 175 - 185
SICI:
0378-2697(1997)206:1-4<175:S(-AEA>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPHINGIDAE;
Keywords:
CACTACEAE; SELENICEREUS WITTII; IGAPO; AMAZONIA; EPIPHYTES; DISPERSAL; POLLINATION; ANATOMY; ECOPHYSIOLOGY; CRASSULACEAN ACID METABOLISM (CAM); FRAGRANCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
W. Barthlott et al., "SELENICEREUS-WITTII (CACTACEAE) - AN EPIPHYTE ADAPTED TO AMAZONIAN IGAPO INUNDATION FORESTS", Plant systematics and evolution, 206(1-4), 1997, pp. 175-185

Abstract

The biology, ecology, and distribution of Selenicereus (Strophocactus) wittii, one of the least known taxa of Cactaceae, are described. This epiphyte climbs appressed to tree trunks with leaf-like, flattened stems and is found exclusively along the high waterline of black water rivers (Rio Negro, Vaupes, Apaporis) in the Igapo inundation forests of Amazonia. Ecophysiologically, S. wittli is a crassulacean acid metabolism (CAM) plant. It bears white, nocturnal flowers 25 cm in length which emit a fragrance consisting mainly of benzylalcohol, benzyl benzoate, and benzyl salicylate. They exhibit an extreme sphingophilous syndrome as an adaptation to pollination by probably only two species of hawkmoth from the genera Amphimoena and Cocytius. The seeds, aberrant for the family, contain air-filled chambers and are water-dispersed. Thus, S. wittii represents the paradoxical life form of an hydrochorousepiphytic cactus which withstands periodical inundation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 15:24:00