| antarctica | | plocamium cartilagineum | species | 18 | 0 |
| antarctica | | plocamium sp. | species | 5 | 0 |
| australia | | plocamium sp. aus 5 gws-2011 | species | 1 | 0 |
| australia | new south wales | plocamium hamatum | species | 2 | 0 |
| australia | south australia | plocamium cf. leptophyllum 2 gws-2011 | species | 1 | 0 |
| australia | south australia | plocamium mertensii | species | 1 | 0 |
| australia | south australia | plocamium sp. aus 3 gws-2011 | species | 1 | 0 |
| australia | tasmania | plocamium cf. angustum 3 gws-2011 | species | 1 | 0 |
| australia | tasmania | plocamium cf. angustum 4 gws-2011 | species | 1 | 0 |
| australia | tasmania | plocamium cf. cirrhosum 1 gws-2011 | species | 2 | 0 |
| australia | tasmania | plocamium cf. cirrhosum 2 gws-2011 | species | 2 | 0 |
| australia | tasmania | plocamium cf. leptophyllum 1 gws-2011 | species | 2 | 0 |
| australia | tasmania | plocamium dilatatum | species | 1 | 0 |
| australia | tasmania | plocamium patagiatum | species | 1 | 0 |
| australia | victoria | plocamium cf. angustum 1 gws-2011 | species | 3 | 0 |
| australia | victoria | plocamium cf. angustum 3 gws-2011 | species | 1 | 0 |
| australia | victoria | plocamium cf. cirrhosum 2 gws-2011 | species | 1 | 0 |
| australia | victoria | plocamium cf. leptophyllum 2 gws-2011 | species | 1 | 0 |
| australia | victoria | plocamium cirrhosum | species | 1 | 0 |
| australia | victoria | plocamium dilatatum | species | 2 | 0 |
| australia | victoria | plocamium mertensii | species | 1 | 0 |
| australia | victoria | plocamium patagiatum | species | 2 | 0 |
| australia | victoria | plocamium preissianum | species | 1 | 0 |
| australia | victoria | plocamium sp. aus 1 gws-2011 | species | 3 | 0 |
| australia | victoria | plocamium sp. aus 2 gws-2011 | species | 3 | 0 |
| australia | victoria | plocamium sp. aus 3 gws-2011 | species | 3 | 0 |
| australia | victoria | plocamium sp. aus 5 gws-2011 | species | 1 | 0 |
| canada | british columbia | plocamium cf. pacificum 1 gws-2011 | species | 3 | 0 |
| canada | british columbia | plocamium oregonum | species | 2 | 0 |
| canada | british columbia | plocamium pacificum | species | 4 | 0 |
| canada | british columbia | plocamium violaceum | species | 4 | 0 |
| china | | plocamium cartilagineum | species | 2 | 0 |
| china | | plocamium telfairiae | species | 2 | 0 |
| fiji | | plocamium sp. | species | 2 | 0 |
| france | bretagne region | plocamium cartilagineum | species | 20 | 0 |
| france | bretagne region | plocamium lyngbyanum | species | 21 | 0 |
| france | bretagne region | plocamium nanum | species | 4 | 0 |
| ireland | connaught province | plocamium cartilagineum | species | 2 | 0 |
| ireland | connaught province | plocamium lyngbyanum | species | 1 | 0 |
| ireland | ulster province | plocamium cartilagineum | species | 1 | 0 |
| ireland | ulster province | plocamium maggsiae | species | 2 | 0 |
| japan | | plocamium cartilagineum | species | 3 | 0 |
| japan | | plocamium ovicornis | species | 2 | 0 |
| japan | | plocamium recurvatum | species | 2 | 0 |
| japan | | plocamium serrulatum | species | 1 | 0 |
| japan | | plocamium telfairiae | species | 8 | 0 |
| japan | chiba prefecture | plocamium cartilagineum | species | 2 | 0 |
| japan | chiba prefecture | plocamium recurvatum | species | 1 | 0 |
| japan | ehime prefecture | plocamium cartilagineum | species | 1 | 0 |
| japan | hiroshima prefecture | plocamium cartilagineum | species | 1 | 0 |
| japan | hyogo prefecture | plocamium telfairiae | species | 3 | 0 |
| japan | ibaraki prefecture | plocamium cartilagineum | species | 1 | 0 |
| japan | ibaraki prefecture | plocamium recurvatum | species | 1 | 0 |
| japan | kumamoto prefecture | plocamium cartilagineum | species | 1 | 0 |
| japan | okinawa prefecture | plocamium telfairiae | species | 1 | 0 |
| japan | tokushima prefecture | plocamium telfairiae | species | 3 | 0 |
| japan | wakayama prefecture | plocamium telfairiae | species | 5 | 0 |
| new zealand | | plocamium cartilagineum | species | 1 | 0 |
| new zealand | | plocamium cirrhosum | species | 1 | 0 |
| new zealand | wellington | plocamium cf. angustum 3 gws-2011 | species | 1 | 0 |
| new zealand | wellington | plocamium cf. cartilagineum nz 1 gws-2011 | species | 3 | 0 |
| new zealand | wellington | plocamium cf. cartilagineum nz 2 gws-2011 | species | 2 | 0 |
| norway | hordaland county | plocamium lyngbyanum | species | 1 | 0 |
| oman | dhofar governorate | plocamium fimbriatum | species | 4 | 0 |
| panama | chiriqui province | plocamium sp. | species | 3 | 0 |
| south africa | | plocamium microcladioides | species | 1 | 0 |
| south africa | | plocamium suhrii | species | 4 | 0 |
| south africa | kwazulu-natal province | plocamium microcladioides | species | 1 | 0 |
| south africa | kwazulu-natal province | plocamium suhrii | species | 4 | 0 |
| south africa | the western cape province | plocamium cornutum | species | 3 | 0 |
| south korea | | plocamium telfairiae | species | 3 | 0 |
| south korea | busan city | plocamium cartilagineum | species | 1 | 0 |
| south korea | jeju province | plocamium cartilagineum | species | 3 | 0 |
| spain | | plocamium sp. llg0171 | species | 1 | 0 |
| spain | andalusia | plocamium cartilagineum | species | 2 | 0 |
| spain | asturias | plocamium maggsiae | species | 2 | 0 |
| spain | catalonia | plocamium cartilagineum | species | 1 | 0 |
| spain | galicia | plocamium cartilagineum | species | 3 | 0 |
| spain | galicia | plocamium lyngbyanum | species | 3 | 0 |
| spain | galicia | plocamium raphelisianum | species | 3 | 0 |
| taiwan | | plocamium serrulatum | species | 1 | 0 |
| united kingdom | northern ireland | plocamium lyngbyanum | species | 2 | 0 |
| united kingdom | northern ireland | plocamium maggsiae | species | 1 | 0 |
| united states | california | plocamium pacificum | species | 8 | 0 |
| united states | california | plocamium sp. 2pacificum | species | 1 | 0 |
| united states | california | plocamium violaceum | species | 10 | 0 |
| united states | oregon | plocamium oregonum | species | 1 | 0 |