Gunnera cf monoica Dept of Botany, Stockholm University 981120 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera cordifolia 1 Dept of Botany, Stockholm University 990416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera dentata 2 Dept of Botany, Stockholm University 990416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera herteri 1 Dept of Botany, Stockholm University (from Cabo Polomia, Rocha, Uruguay) 981120 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 10 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 11 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 12 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 13 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 14 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 15 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 16 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 17 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 5 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 6 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 7 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 8 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 9 Quetzals Paradise Lodge, Costa Rica 231212 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera magellanica 3 Copenhagen Bot Garden 160713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera manicata 2 (adventitious root primordia with Nostoc colonies) Dept of Botany, Stockholm University 051125 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 1 Taranaki (Mt Egmont) NZ 151111 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 10 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 11 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 14 Taranaki (Mt Egmont) NZ 151111 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 15 Taranaki (Mt Egmont) NZ 151111 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 16 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 17 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 18 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 19 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 2 Taranaki (Mt Egmont) NZ 151111 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 20 Taranaki (Mt Egmont) NZ 151111 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 21 Taranaki (Mt Egmont) NZ 151111 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 3 Taranaki (Mt Egmont) NZ 151111 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 4 Taranaki (Mt Egmont) NZ 151111 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 5 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 6 Taranaki (Mt Egmont) NZ 151111 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 7 Taranaki (Mt Egmont) NZ 151111 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 8 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 9 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera petaloidea 1 Olinda Endangered Plant Facility, East Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera petaloidea 2 Olinda Endangered Plant Facility, East Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera petaloidea 3 Olinda Endangered Plant Facility, East Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera prorepens 2 Dept of Botany, Stockholm University 990416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera talamancana 5 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera talamancana 6 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera tinctoria 1 Lund Bot Garden 130531 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera tinctoria 10 Copenhagen Bot Garden 080513 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera tinctoria 9 Copenhagen Bot Garden 080513 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera 1a Dept of Botany, Stockholm University 021203 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera 1b Dept of Botany, Stockholm University 021203 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera cf manicata 1 (cult) Sofiero Sk 070521 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera cf manicata 2 (cult) Sofiero Sk 070521 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera cf manicata 3 (cult) Sofiero Sk 070521 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera cordifolia 2 Dept of Botany, Stockholm University 990416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera dentata 1 Dept of Botany, Stockholm University 990416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera herteri 2 Dept of Botany, Stockholm University (from Cabo Polomia, Rocha, Uruguay) 981120 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera herteri 3 Dept of Botany, Stockholm University (from Cabo Polomia, Rocha, Uruguay) 981120 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 1 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 2 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 3 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera insignis 4 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera magellanica 1 Copenhagen Bot Garden 160713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera magellanica 2 Copenhagen Bot Garden 160713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera manicata 1 (adventitious root primordia with Nostoc colonies) Dept of Botany, Stockholm University 051125 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 12 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera monoica 13 Taranaki (Mt Egmont) NZ 151110 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera prorepens 1 Dept of Botany, Stockholm University 990416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera prorepens 3 Dept of Botany, Stockholm University 000217 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera prorepens 4 Dept of Botany, Stockholm University 000217 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera talamancana 1 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera talamancana 2 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera talamancana 3 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera talamancana 4 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera talamancana 7 Cerro de la Muerte, Costa Rica 231211 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera tinctoria 2 Copenhagen Bot Garden 080513 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera tinctoria 3 Copenhagen Bot Garden 080513 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera tinctoria 4 Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera tinctoria 5 Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera tinctoria 6 Lund Bot Garden 130531 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera tinctoria 7 Lund Bot Garden 130531 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Gunnera tinctoria 8 Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).