| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| GRALC | Grimmia alpestris (Web. & Mohr) Schleich. ex Nees in Nees et al. var. caespiticia (Brid.) G. Jones in Grout | Grimmia tenerrima | Grimmiaceae
|
| GRALH | Grimmia alpestris (Web. & Mohr) Schleich. ex Nees in Nees et al. var. holzingeri (Card. & Th�r.) G. Jones in Grout | Grimmia tenerrima | Grimmiaceae
|
| GRALM | Grimmia alpestris (Web. & Mohr) Schleich. ex Nees in Nees et al. var. manniae (C. M�ll.) G. Jones in Grout | Grimmia tenerrima | Grimmiaceae
|
| GRALM2 | Grimmia alpestris (Web. & Mohr) Schleich. ex Nees in Nees et al. var. microstoma Bruch & Schimp. in B.S.G. | Grimmia tenerrima | Grimmiaceae
|
| GRAL | Grimmia alpestris (Web. & Mohr) Schleich. ex Nees in Nees et al. | Grimmia tenerrima | Grimmiaceae
|
| GRALD | Grimmia alpicola auct. Amer. var. dupretii (Th�r.) Crum | Schistidium apocarpum | Grimmiaceae
|
| GRALL | Grimmia alpicola auct. Amer. var. latifolia (Zett.) Moll. | Schistidium rivulare var. latifolium | Grimmiaceae
|
| GRALR2 | Grimmia alpicola auct. Amer. var. rivularis (Brid.) Wahlenb. f. acutifolia | Schistidium occidentale | Grimmiaceae
|
| GRALR | Grimmia alpicola auct. Amer. var. rivularis (Brid.) Wahlenb. | Schistidium rivulare var. rivulare | Grimmiaceae
|
| GRAL70 | Grimmia alpicola Sw. ex Hedw. | Schistidium agassizii | Grimmiaceae
|
| GRAL2 | Grimmia alpicola auct. Amer. | Schistidium rivulare var. rivulare | Grimmiaceae
|
| GRAM2 | Grimmia americana Bartr. | American dry rock moss | Grimmiaceae
|
| GRAN70 | Grimmia anodon Bruch & Schimp. in B.S.G. | grimmia dry rock moss | Grimmiaceae
|
| GRAN3 | Grimmia anomala Hampe ex Schimp. | grimmia dry rock moss | Grimmiaceae
|
| GRAPA | Grimmia apocarpa Hedw. var. ambigua (Sull.) G. Jones in Grout | Schistidium apocarpum | Grimmiaceae
|
| GRAPA2 | Grimmia apocarpa Hedw. var. atrofusca (Schimp.) Husn. | Schistidium apocarpum | Grimmiaceae
|
| GRAPB | Grimmia apocarpa Hedw. var. brunnescens (Limpr.) M�nk. | Schistidium apocarpum | Grimmiaceae
|
| GRAPC | Grimmia apocarpa Hedw. var. conferta (Funck) Spreng. | Schistidium apocarpum | Grimmiaceae
|
| GRAPD | Grimmia apocarpa Hedw. var. dupretii (Th�r.) Sayre | Schistidium apocarpum | Grimmiaceae
|
| GRAPG | Grimmia apocarpa Hedw. var. gracilis Web. & Mohr ex Nees et al. | Schistidium apocarpum | Grimmiaceae
|
| GRAPN | Grimmia apocarpa Hedw. var. nigrescens Mol. | Schistidium apocarpum | Grimmiaceae
|
| GRAPO | Grimmia apocarpa Hedw. var. obscuroviridis Crum | Schistidium apocarpum | Grimmiaceae
|
| GRAPP | Grimmia apocarpa Hedw. var. pulvinata (Hedw.) G. Jones in Grout | Schistidium pulvinatum | Grimmiaceae
|
| GRAPS | Grimmia apocarpa Hedw. var. stricta (Turn.) Hook. & Tayl. | Schistidium apocarpum | Grimmiaceae
|
| GRAPT3 | Grimmia apocarpa Hedw. var. tenerrima Nees & Hornsch. in Nees et al. | Schistidium apocarpum | Grimmiaceae
|
| GRAP70 | Grimmia apocarpa Hedw. | Schistidium apocarpum | Grimmiaceae
|
| GRAR5 | Grimmia arizonae Ren. & Card. | Arizonia dry rock moss | Grimmiaceae
|
| GRAT2 | Grimmia atrata Miel. ex Hornsch. | grimmia dry rock moss | Grimmiaceae
|
| GRAT3 | Grimmia atricha C. M�ll. & Kindb. in Mac. & Kindb. | Schistidium apocarpum | Grimmiaceae
|
| GRBR3 | Grimmia brevirostris Williams | grimmia dry rock moss | Grimmiaceae
|
| GRBR4 | Grimmia brittoniae Williams | Britton's dry rock moss | Grimmiaceae
|
| GRCA70 | Grimmia calyptrata Hook. in Drumm. | Coscinodon calyptratus | Grimmiaceae
|
| GRCI2 | Grimmia cinclidodontea C. M�ll. in R�ll | Schistidium cinclidodonteum | Grimmiaceae
|
| GRCO6 | Grimmia coloradensis Aust. | Schistidium apocarpum | Grimmiaceae
|
| GRCO7 | Grimmia commutata H�b. | Grimmia ovalis | Grimmiaceae
|
| GRCR70 | Grimmia cribrosa Hedw. | Coscinodon cribrosus | Grimmiaceae
|
| GRCU4 | Grimmia curvata (Brid.) De Sloover | Dryptodon patens | Grimmiaceae
|
| GRDEH | Grimmia decipiens auct. Amer. var. hendersonii (Ren. & Card.) Sayre in Crum et al. | Grimmia pulvinata var. pulvinata | Grimmiaceae
|
| GRDE4 | Grimmia decipiens auct. Amer. | Grimmia trichophylla | Grimmiaceae
|
| GRDE5 | Grimmia densa Kindb. | Grimmia trichophylla | Grimmiaceae
|
| GRDOH | Grimmia donniana Sm. var. holzingeri (Card. & Th�r.) Wijk & Marg. | Grimmia tenerrima | Grimmiaceae
|
| GRDOM | Grimmia donniana Sm. var. manniae (C. M�ll.) Wijk & Marg. | Grimmia tenerrima | Grimmiaceae
|
| GRDOT | Grimmia donniana Sm. var. triformis (Carest. & De Not. in De Not.) Loeske | Grimmia donniana | Grimmiaceae
|
| GRDO | Grimmia donniana Sm. | Donn's dry rock moss | Grimmiaceae
|
| GRDU3 | Grimmia dupretii Th�r. | Schistidium apocarpum | Grimmiaceae
|
| GREL2 | Grimmia elatior Bruch ex Bals. & De Not. | grimmia dry rock moss | Grimmiaceae
|
| GREL3 | Grimmia elongata Kaulf. in Sturm | grimmia dry rock moss | Grimmiaceae
|
| GRFL5 | Grimmia flaccida (De Not.) Lindb. | Schistidium pulvinatum | Grimmiaceae
|
| GRFL6 | Grimmia flettii (Holz.) Card. in Holz. | Grimmia torquata var. flettii | Grimmiaceae
|
| GRFU | Grimmia funalis (Schwaegr.) Bruch & Schimp. in B.S.G. | grimmia dry rock moss | Grimmiaceae
|
| GRGL3 | Grimmia glauca sensu G. Jones in Grout | Grimmia laevigata | Grimmiaceae
|
| GRGR4 | Grimmia gracilis (Web. & Mohr ex Nees et al.) Schleich. ex Limpr. | Schistidium apocarpum | Grimmiaceae
|
| GRHA5 | Grimmia hamulosa Lesq. | grimmia dry rock moss | Grimmiaceae
|
| GRHAA | Grimmia hartmanii Schimp. var. anomala (Hampe ex Schimp.) M�nk. | Grimmia anomala | Grimmiaceae
|
| GRHA6 | Grimmia hartmanii Schimp. | Hartman's dry rock moss | Grimmiaceae
|
| GRHE5 | Grimmia hendersonii Ren. & Card. | Grimmia pulvinata var. pulvinata | Grimmiaceae
|
| GRHE4 | Grimmia hermanii Crum | Herman's dry rock moss | Grimmiaceae
|
| GRHE6 | Grimmia heterophylla Kindb. in Mac. & Kindb. | Schistidium heterophyllum | Grimmiaceae
|
| GRHO3 | Grimmia hoffmannii C. M�ll. | Schistidium pulvinatum | Grimmiaceae
|
| GRIN9 | Grimmia incurva Schwaegr. | grimmia dry rock moss | Grimmiaceae
|
| GRIN10 | Grimmia indianensis (Sayre) Crum | Grimmia pulvinata var. pulvinata | Grimmiaceae
|
| GRLA5 | Grimmia laevigata (Brid.) Brid. | grimmia dry rock moss | Grimmiaceae
|
| GRLE5 | Grimmia leibergii Par. | Grimmia trichophylla | Grimmiaceae
|
| GRMA4 | Grimmia mariniana Sayre | grimmia dry rock moss | Grimmiaceae
|
| GRMA5 | Grimmia maritima Turn. | Schistidium maritimum | Grimmiaceae
|
| GRMO4 | Grimmia mollis Bruch & Schimp. in B.S.G. | grimmia dry rock moss | Grimmiaceae
|
| GRMO5 | Grimmia montana Bruch & Schimp. in B.S.G. | montane dry rock moss | Grimmiaceae
|
| GRMO6 | Grimmia moxleyi Williams in Holz. | Moxley's dry rock moss | Grimmiaceae
|
| GROC2 | Grimmia occidentalis Lawt. | Schistidium occidentale | Grimmiaceae
|
| GROL | Grimmia olneyi Sull. | Olney's dry rock moss | Grimmiaceae
|
| GROL2 | Grimmia olympica Britt. in Frye | Brachydontium olympicum | Seligeriaceae
|
| GROR2 | Grimmia orbicularis Bruch ex Wils. | orb dry rock moss | Grimmiaceae
|
| GROV70 | Grimmia ovalis (Hedw.) Lindb. | oval dry rock moss | Grimmiaceae
|
| GRPA5 | Grimmia pacifica Lawt. | Schistidium occidentale | Grimmiaceae
|
| GRPA6 | Grimmia patens (Hedw.) Bruch & Schimp. in B.S.G. | Dryptodon patens | Grimmiaceae
|
| GRPI3 | Grimmia pilifera P. Beauv. | grimmia dry rock moss | Grimmiaceae
|
| GRPL70 | Grimmia plagiopodia Hedw. | grimmia dry rock moss | Grimmiaceae
|
| GRPL5 | Grimmia platyphylla Mitt. | Schistidium rivulare var. latifolium | Grimmiaceae
|
| GRPO2 | Grimmia poecilostoma Card. & Seb. in Seb. | grimmia dry rock moss | Grimmiaceae
|
| GRPUA | Grimmia pulvinata (Hedw.) Sm. var. africana (Hedw.) Hook. f. | African dry rock moss | Grimmiaceae
|
| GRPUP | Grimmia pulvinata (Hedw.) Sm. var. pulvinata | pulvinate dry rock moss | Grimmiaceae
|
| GRPU | Grimmia pulvinata (Hedw.) Sm. | pulvinate dry rock moss | Grimmiaceae
|
| GRRA2 | Grimmia raui Aust. | Jaffueliobryum raui | Grimmiaceae
|
| GRRI2 | Grimmia rivularis Brid. | Schistidium rivulare var. rivulare | Grimmiaceae
|
| GRSES | Grimmia sessitana De Not. var. subsulcata (Limpr.) Breidl. | Grimmia tenerrima | Grimmiaceae
|
| GRSP4 | Grimmia sphaerica Schimp. | Schistidium pulvinatum | Grimmiaceae
|
| GRST5 | Grimmia stricta Turn. | Schistidium apocarpum | Grimmiaceae
|
| GRSU11 | Grimmia subanodon Ochyra | Schistidium obtusifolium | Grimmiaceae
|
| GRTE6 | Grimmia tenera Zett. | Schistidium tenerum | Grimmiaceae
|
| GRTE4 | Grimmia tenerrima Ren. & Card. | grimmia dry rock moss | Grimmiaceae
|
| GRTE7 | Grimmia tenuicaulis Williams | Schistidium tenerum | Grimmiaceae
|
| GRTE5 | Grimmia teretinervis Limpr. | grimmia dry rock moss | Grimmiaceae
|
| GRTO2 | Grimmia torngakiana Brass. & Hedderson | grimmia dry rock moss | Grimmiaceae
|
| GRTOF | Grimmia torquata Hornsch. in Grev. var. flettii (Holz.) Vaar. | Flett's dry rock moss | Grimmiaceae
|
| GRTOT | Grimmia torquata Hornsch. in Grev. var. torquata | grimmia dry rock moss | Grimmiaceae
|
| GRTO4 | Grimmia torquata Hornsch. in Grev. | grimmia dry rock moss | Grimmiaceae
|
| GRTRB | Grimmia trichophylla Grev. var. brachycarpa De Not. | Grimmia trichophylla | Grimmiaceae
|
| GRTRI | Grimmia trichophylla Grev. var. indianensis Sayre | Grimmia pulvinata var. pulvinata | Grimmiaceae
|
| GRTRM | Grimmia trichophylla Grev. var. meridionalis C. M�ll. | Grimmia trichophylla | Grimmiaceae
|
| GRTR3 | Grimmia trichophylla Grev. | grimmia dry rock moss | Grimmiaceae
|
| GRUN | Grimmia unicolor Hook. in Grev. | onecolor dry rock moss | Grimmiaceae
|