| Common Name | Scientific Name | Code |
|---|
| n/a | Anthoceros agrestis Paton nom. cons. prop. | ANAG |
| n/a | Anthoceros agrestis Paton nom. cons. prop. var. agrestis | ANAGA2 |
| n/a | Anthoceros agrestis Paton nom. cons. prop. var. douinii (R. M. Schust.) Stotler & Crand.-Stotl. | ANAGD |
| n/a | Anthoceros lamellatus Steph. | ANLA16 |
| n/a | Phaeoceros mohrii (Austin) H?ssel | PHMO14 |
| anthoceros | Anthoceros adscendens Lehm. & Lindenb. | ANAD3 |
| anthoceros | Anthoceros fusiformis Austin | ANFU6 |
| anthoceros | Anthoceros punctatus L. | ANPU12 |
| anthoceros | Anthoceros scarious Austin | ANSC13 |
| Anthoceros adscendens | Anthoceros joorii Austin | ANJO |
| Anthoceros adscendens | Anthoceros lescurii Austin | ANLE15 |
| Anthoceros adscendens | Anthoceros megalosporus Gottsche | ANME10 |
| Anthoceros adscendens | Anthoceros olneyi Austin | ANOL2 |
| Anthoceros adscendens | Anthoceros ravenelii Austin | ANRA6 |
| Anthoceros adscendens | Aspiromitus adscendens (Lehm. & Lindenb.) R. M. Schust. | ASAD9 |
| Anthoceros adscendens | Sphaerosporoceros adscendens (Lehm. & Lindenb.) H?ssel | SPAD2 |
| Anthoceros agrestis var. agrestis | Anthoceros multifidus auct. [non L.] | ANMU10 |
| Anthoceros agrestis var. agrestis | Anthoceros nagasakiensis Steph. | ANNA5 |
| Anthoceros agrestis var. agrestis | Anthoceros punctatus auct. non L. [misapplied] | ANPU17 |
| Anthoceros agrestis var. agrestis | Anthoceros punctatus L. var. cavernosus (Nees) Gottsche Lindenb. & Nees | ANPUC2 |
| Anthoceros agrestis var. agrestis | Aspiromitus agrestis (Paton) Schljakov | ASAG5 |
| Anthoceros agrestis var. agrestis | Aspiromitus cavernosus (Nees) Schljakov | ASCA46 |
| Anthoceros agrestis var. agrestis | Aspiromitus punctatus (L.) Schljakov var. agrestis (Paton) R. M. Schust. | ASPUA2 |
| Anthoceros agrestis var. douinii | Anthoceros crispulus auct. [non (Mont.) Douin] | ANCR9 |
| Anthoceros agrestis var. douinii | Aspiromitus punctatus (L.) Schljakov var. douinii R. M. Schust. | ASPUD2 |
| Anthoceros fusiformis | Anthoceros fusiformis Austin var. stomatifer (Austin) M. Howe | ANFUS |
| Anthoceros fusiformis | Anthoceros pseudohusnotii S. Hatt. | ANPS2 |
| Anthoceros fusiformis | Anthoceros stomatifer Austin | ANST10 |
| Anthoceros fusiformis | Aspiromitus fusiformis (Austin) R. M. Schust. | ASFU7 |
| Anthoceros lamellatus | Aspiromitus appalachianus R. M. Schust. | ASAP3 |
| Anthoceros lamellatus | Aspiromitus lamellatus (Steph.) R. M. Schust. | ASLA23 |
| Anthoceros macounii | Aspiromitus macounii (M. Howe) R. M. Schust. | ASMA23 |
| Anthoceros punctatus | Anthoceros constans Lindb. | ANCO37 |
| Anthoceros punctatus | Anthoceros husnotii Steph. | ANHU5 |
| Anthoceros punctatus | Anthoceros longicapsulus Steph. | ANLO7 |
| Anthoceros punctatus | Anthoceros multilobulus Lindb. | ANMU11 |
| Anthoceros punctatus | Anthoceros polymorphus Raddi var. punctatus (L.) Hampe | ANPOP2 |
| Anthoceros punctatus | Anthoceros punctatus L. var. husnotii (Steph.) Zodda | ANPUH |
| Anthoceros punctatus | Anthoceros punctatus L. var. ilvensis De Not. | ANPUI |
| Anthoceros punctatus | Anthoceros stableri Steph. | ANST11 |
| Anthoceros punctatus | Aspiromitus husnotii (Steph.) Steph. | ASHU8 |
| Anthoceros punctatus | Aspiromitus punctatus (L.) Schljakov | ASPU16 |
| Anthoceros punctatus | Carpoceros punctatus (L.) Dumort. | CAPU45 |
| Anthoceros scarious | Anthoceros meridionalis Steph. | ANME7 |
| Anthoceros scarious | Anthoceros punctatus L. var. eatonii Austin | ANPUE |
| Anthoceros scarious | Anthoceros punctatus L. var. ohionensis Austin | ANPUO |
| Anthoceros scarious | Anthoceros punctatus L. var. scariosus (Austin) Austin | ANPUS2 |
| Anthoceros scarious | Aspiromitus grossilamellus Steph. | ASGR16 |
| Anthoceros scarious | Aspiromitus scariosus (Austin) R. M. Schust. | ASSC17 |
| Carolina phaeoceros | Phaeoceros carolinianus (Michx.) Prosk. | PHCA38 |
| Donnell's anthoceros | Anthoceros donnelli Aust. | ANDO5 |
| Hall's phaeoceros | Phaeoceros hallii (Austin) Prosk. | PHHA8 |
| hornwort | Anthoceros L. emend. Prosk. | ANTHO3 |
| Macoun's anthoceros | Anthoceros macounii M.A. Howe | ANMA15 |
| Pearson's phaeoceros | Phaeoceros pearsonii (M.A. Howe) Prosk. | PHPE12 |
| phaeoceros | Phaeoceros laevis (L.) Prosk. | PHLA24 |
| phaeoceros | Phaeoceros Prosk. | PHAEO2 |
| Phaeoceros carolinianus | Anthoceros arsenii Steph. | ANAR19 |
| Phaeoceros carolinianus | Anthoceros atlanticus Steph. | ANAT5 |
| Phaeoceros carolinianus | Anthoceros bilobata Turpin | ANBI4 |
| Phaeoceros carolinianus | Anthoceros carolinianus Michx. | ANCA41 |
| Phaeoceros carolinianus | Anthoceros carolinianus Michx. var. occidentalis M. Howe | ANCAO |
| Phaeoceros carolinianus | Anthoceros communis Steph. | ANCO38 |
| Phaeoceros carolinianus | Anthoceros cubanus Steph. | ANCU4 |
| Phaeoceros carolinianus | Anthoceros incrassatus Schiffn. | ANIN11 |
| Phaeoceros carolinianus | Anthoceros japonicus Steph. | ANJA3 |
| Phaeoceros carolinianus | Anthoceros koreanus Steph. | ANKO |
| Phaeoceros carolinianus | Anthoceros kuhlmannii Herzog | ANKU |
| Phaeoceros carolinianus | Anthoceros kuntzeanus Steph. | ANKU2 |
| Phaeoceros carolinianus | Anthoceros laciniatus Schwein. | ANLA17 |
| Phaeoceros carolinianus | Anthoceros laevis L. ssp. carolinianus (Michx.) R. M. Schust. | ANLAC |
| Phaeoceros carolinianus | Anthoceros laevis L. var. carolinianus (Michx.) Lindb. | ANLAC2 |
| Phaeoceros carolinianus | Anthoceros laevis L. var. major Austin | ANLAM |
| Phaeoceros carolinianus | Anthoceros laevis L. var. tenuis (Nees) Gottsche Lindenb. & Nees | ANLAT |
| Phaeoceros carolinianus | Anthoceros miyoshianus Steph. | ANMI11 |
| Phaeoceros carolinianus | Anthoceros moldavicus Tarn. | ANMO10 |
| Phaeoceros carolinianus | Anthoceros nordenskjoeldii Steph. | ANNO5 |
| Phaeoceros carolinianus | Anthoceros oreganus Austin | ANOR5 |
| Phaeoceros carolinianus | Anthoceros parvus Steph. | ANPA16 |
| Phaeoceros carolinianus | Anthoceros planus Steph. | ANPL3 |
| Phaeoceros carolinianus | Anthoceros reticulatus Steph. | ANRE7 |
| Phaeoceros carolinianus | Anthoceros subcostatus Steph. | ANSU10 |
| Phaeoceros carolinianus | Aspiromitus allionii Steph. | ASAL23 |
| Phaeoceros carolinianus | Carpoceros carolinianus (Michx.) Dumort. | CACA95 |
| Phaeoceros carolinianus | Phaeoceros laevis (L.) Prosk. ssp. carolinianus (Michx.) Prosk. | PHLAC |
| Phaeoceros carolinianus | Phaeoceros oreganus (Austin) H?ssel | PHOR7 |
| Phaeoceros hallii | Anthoceros hallii Austin | ANHA6 |
| Phaeoceros hallii | Anthoceros phymatodes M. Howe | ANPH3 |
| Phaeoceros hallii | Anthoceros sulcatus Austin | ANSU11 |
| Phaeoceros laevis | Anthoceros beltrani Casares-Gil | ANBE4 |
| Phaeoceros laevis | Anthoceros curnowii Steph. | ANCU5 |
| Phaeoceros laevis | Anthoceros dichotomus Raddi var. gussonei Zodda | ANDIG |
| Phaeoceros laevis | Anthoceros donnellii Austin | ANDO8 |
| Phaeoceros laevis | Anthoceros laevis L. | ANLA18 |
| Phaeoceros laevis | Anthoceros laevis L. var. aquatica Walt. Watson | ANLAA |
| Phaeoceros laevis | Anthoceros major Smith | ANMA22 |
| Phaeoceros laevis | Anthoceros miyakeanus Schiffn. | ANMI12 |
| Phaeoceros laevis | Anthoceros polymorphus Raddi var. laevis (L.) Hampe | ANPOL |
| Phaeoceros laevis | Anthoceros punctatus L. var. laevis (L.) Hook. & Taylor ex Lindenb. | ANPUL2 |
| Phaeoceros laevis | Anthoceros punctatus L. var. major (Smith) Hook. & Wilson | ANPUM |
| Phaeoceros laevis | Carpoceros laevis (L.) Dumort. | CALA73 |
| Phaeoceros laevis | Phaeoceros miyakeanus (Schiffn.) S. Hatt. | PHMI19 |
| Phaeoceros mohrii | Anthoceros mohrii Austin | ANMO11 |
| Phaeoceros mohrii | Aspiromitus microsporus Steph. | ASMI19 |
| Phaeoceros mohrii | Phaeoceros microsporus (Steph.) H?ssel | PHMI20 |
| Phaeoceros pearsonii | Anthoceros bolanderi Steph. | ANBO3 |
| Phaeoceros pearsonii | Anthoceros pearsonii M. Howe | ANPE17 |
Plant Names