RELATIVE POLLINATOR EFFECTIVENESS OF INSECT FLORAL VISITORS TO TWO SYMPATRIC SPECIES OF WILD ASTER: SYMPHYOTRICHUM LANCEOLATUM (WILLD.) NESOM AND S. LATERIFLORUM (L.) LÖVE & LÖVE (ASTERACEAE: ASTEREAE)

Autor: Horsburgh, M., Semple, J. C., Kevan, P. G.
Zdroj: Rhodora, 2011 Jan 01. 113(953), 64-86.
Databáze: JSTOR Journals