Peperomia 1a Lyon Arboretum, Honolulu, Hawaii 130708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 1b Lyon Arboretum, Honolulu, Hawaii 130708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 2 Lyon Arboretum, Honolulu, Hawaii 130708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 3a Lyon Arboretum, Honolulu, Hawaii 130708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 3b Lyon Arboretum, Honolulu, Hawaii 130708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 3c Lyon Arboretum, Honolulu, Hawaii 130708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 3d Lyon Arboretum, Honolulu, Hawaii 130708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 3e Lyon Arboretum, Honolulu, Hawaii 130708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 5a Copenhagen Bot Garden 121017 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 5b Copenhagen Bot Garden 121017 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 7a Dept of Botany, Stockholm University (orig Ecuador) 060330 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 7b Dept of Botany, Stockholm University (orig Ecuador) 981120 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia cf membranacea 1 Pihea Trail, Alakui Swamps, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia cf membranacea 5 Pihea Trail, Alakui Swamps, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia columbiana 1 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia columbiana 3 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia flexicaulis 1 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia flexicaulis 6 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia flexicaulis 7 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia incana 1 Lund Bot Garden 140821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia incana 2 Lund Bot Garden 140821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia latifolia 1 Manoa Cliff Trail, Tantalus, Oahu, Hawaii 130709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia latifolia 2 Manoa Cliff Trail, Tantalus, Oahu, Hawaii 130709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia latifolia 4 Manoa Cliff Trail, Tantalus, Oahu, Hawaii 130709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia latifolia 5 Manoa Cliff Trail, Tantalus, Oahu, Hawaii 130709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia pereskiifolia Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia retusa 3 Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia rubella 1 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia rubella 2 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia tetraphylla 1 Manoa Cliff Trail, Tantalus, Oahu, Hawaii 130709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia tristachya 1 Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia tristachya 3 Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 4 Tomanivi, Fiji 840124 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 5c Copenhagen Bot Garden 121017 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 6 Mt Mou, New Caledonia 831115 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 8a Copenhagen Bot Garden 140625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia 8b Copenhagen Bot Garden 140625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia cf membranacea 2 Pihea Trail, Alakui Swamps, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia cf membranacea 3 Pihea Trail, Alakui Swamps, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia cf membranacea 4 Pihea Trail, Alakui Swamps, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia columbiana 2 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia cookiana Kipuka Puaulu, Kilauea, Big Island, Hawaii 130724 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia dolabriformis 1 Lund Bot Garden 130205 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia dolabriformis 2 Lund Bot Garden 130205 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia flexicaulis 2 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia flexicaulis 3 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia flexicaulis 4 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia flexicaulis 5 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia latifolia 3 Manoa Cliff Trail, Tantalus, Oahu, Hawaii 130709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia obtusifolia Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia puteolata Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia retusa 1 Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia retusa 2 Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia tetraphylla 2 Manoa Cliff Trail, Tantalus, Oahu, Hawaii 130709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia tetraphylla 3 Manoa Cliff Trail, Tantalus, Oahu, Hawaii 130709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia tetraphylla 4 Manoa Cliff Trail, Tantalus, Oahu, Hawaii 130709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia tetraphylla 5 Manoa Cliff Trail, Tantalus, Oahu, Hawaii 130709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia tithymaloides 1 Lund Bot Garden 140821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia tithymaloides 2 Lund Bot Garden 140821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Peperomia tristachya 2 Copenhagen Bot Garden 120926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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