Michael & Patricia Fogden / Fork-tailed Emerald (Chlorostilbon canivetii) hummingbird feeding on Gesneria (Kohleria spicata) flowers, rainforest ecosystem, Costa Rica

Juan Carlos Munoz / Pyrenean violet (Ramonda myconi) growing in a gryke, the sheltered crevice of limestone pavement, Ordesa y Monte Perdido National Park, Pyrenees, Aragon, Spain, July.

Ingo Arndt / Orchid (Kohleria amabilis) flower, in tropical rainforest, Costa Rica.

Chien Lee / Brown Gardener (Amblyornis inornatus) bower with a pile of Lipstick Plant (Aeschynanthus sp) flowers, Syoubri, Mokwam, Indonesia

Pete Oxford / Gesneriad (Drymonia sp) flower, Tiputini Biodiversity Station adjacent to Yasuni National Park, Amazon Rainforest, Ecuador

Michael & Patricia Fogden / Violet-bellied Hummingbird (Damophila julie) male on Gesneria (Kohleria sp) flower, western Ecuador

Christian Ziegler / Gesneria (Chrysothemis friedrichsthaliana) arranges its few leaves in a rosette close to the ground to avoid overlap, Barro Colorado Island, Panama

James Christensen / Gesneria (Drymonia sp) flowers, Mindo, western slope of Andes, Ecuador

Murray Cooper / Gesneria (Gesneriaceae) fruit in sub-tropical forest, Colombia

Michael & Patricia Fogden / Black-bellied Hummingbird (Eupherusa nigriventris) male feeding at and pollinating Gesneria (Kohleria sp) flowers, mid-elevation rainforest, Sarapiqui Gorge, Costa Rica

Michael & Patricia Fogden / Magenta-throated Woodstar (Calliphlox bryantae) hummingbird male flying beside Gesneria (Kohleria spicata gesneriaceae) flowers, Monteverde Cloud Forest Reserve, Costa Rica

Michael & Patricia Fogden / Flying Goldfish Plant (Columnea microcalyx), Monteverde Cloud Forest Reserve, Costa Rica