| canada | british columbia | cystoseira geminata | species | 3 | 0 |
| croatia | | cystoseira sp. gent krk005 | species | 3 | 0 |
| france | | cystoseira baccata | species | 1 | 0 |
| france | | cystoseira nodicaulis | species | 1 | 0 |
| france | bretagne region | cystoseira baccata | species | 1 | 0 |
| france | bretagne region | cystoseira nodicaulis | species | 1 | 0 |
| greece | crete region | cystoseira barbatula | species | 1 | 0 |
| india | | cystoseira indica | species | 1 | 0 |
| indonesia | west java province | cystoseira schiffneri | species | 1 | 0 |
| italy | | cystoseira amentacea | species | 4 | 0 |
| italy | | cystoseira brachycarpa var. brachycarpa | varietas | 1 | 0 |
| italy | | cystoseira compressa | species | 2 | 0 |
| italy | | cystoseira crinita | species | 3 | 0 |
| italy | | cystoseira funkii | species | 2 | 0 |
| italy | | cystoseira humilis | species | 1 | 0 |
| italy | apulia region | cystoseira crinita | species | 229 | 0 |
| italy | sicily autonomous region | cystoseira amentacea | species | 2 | 0 |
| italy | sicily autonomous region | cystoseira amentacea var. stricta | varietas | 6 | 0 |
| italy | sicily autonomous region | cystoseira barbatula | species | 1 | 0 |
| italy | sicily autonomous region | cystoseira brachycarpa var. brachycarpa | varietas | 4 | 0 |
| italy | sicily autonomous region | cystoseira compressa | species | 1 | 0 |
| italy | sicily autonomous region | cystoseira crinita | species | 3 | 0 |
| italy | sicily autonomous region | cystoseira elegans | species | 3 | 0 |
| italy | sicily autonomous region | cystoseira humilis | species | 3 | 0 |
| italy | sicily autonomous region | cystoseira susanensis | species | 2 | 0 |
| italy | sicily autonomous region | cystoseira zosteroides | species | 3 | 0 |
| japan | hokkaido prefecture | cystoseira hakodatensis | species | 4 | 0 |
| malta | xghajra | cystoseira abies-marina | species | 8 | 0 |
| oman | | cystoseira indica | species | 1 | 0 |
| oman | dhofar governorate | cystoseira indica | species | 1 | 0 |
| portugal | | cystoseira humilis | species | 2 | 0 |
| portugal | | cystoseira tamariscifolia | species | 2 | 0 |
| portugal | | cystoseira usneoides | species | 3 | 0 |
| portugal | madeira autonomous region | cystoseira nodicaulis | species | 1 | 0 |
| portugal | viana do castelo district | cystoseira tamariscifolia | species | 10 | 0 |
| south africa | the western cape province | cystoseira myrica | species | 3 | 0 |
| spain | balearic islands | cystoseira barbata | species | 2 | 0 |
| spain | balearic islands | cystoseira brachycarpa var. balearica | varietas | 3 | 0 |
| spain | balearic islands | cystoseira crinita | species | 3 | 0 |
| spain | balearic islands | cystoseira sp. l 0609306 | species | 2 | 0 |
| spain | balearic islands | cystoseira spinosa var. tenuior | varietas | 2 | 0 |
| spain | canary islands | cystoseira abies-marina | species | 18 | 0 |
| spain | canary islands | cystoseira compressa | species | 11 | 0 |
| spain | canary islands | cystoseira foeniculacea | species | 12 | 0 |
| spain | canary islands | cystoseira humilis | species | 4 | 0 |
| spain | galicia | cystoseira baccata | species | 3 | 0 |
| spain | galicia | cystoseira tamariscifolia | species | 5 | 0 |
| spain | galicia | cystoseira usneoides | species | 2 | 0 |
| spain | murcia | cystoseira amentacea | species | 2 | 0 |
| spain | valencia | cystoseira compressa | species | 2 | 0 |
| spain | valencia | cystoseira humilis | species | 2 | 0 |
| spain | valencia | cystoseira spinosa | species | 349 | 0 |
| tunisia | | cystoseira schiffneri | species | 1 | 0 |
| turkey | | cystoseira baccata | species | 1 | 0 |
| united states | california | cystoseira neglecta | species | 2 | 0 |
| united states | california | cystoseira osmundacea | species | 6 | 0 |
| united states | california | cystoseira osmundacea f. hipolito | forma | 2 | 0 |
| united states | california | cystoseira osmundacea f. symmetricaulis | forma | 2 | 0 |
| united states | california | cystoseira setchellii | species | 2 | 0 |