- Acisanthera limnobios, Noterophila pusilla;Acisanthera pellucida;Miocarpus paludosus;Noterophila limnobios;Acisanthera inundata var pusilla;Microlicia limnobios
- Acrolejeunea pusilla, Archilejeunea pusilla;Ptycholejeunea nipponicus
- Adelanthus falcatus, Calyptrocolea falcata;Jungermannia falcata;Jungermannia pusilla Mont Hook f & Taylor;Plagiochila pusilla
- Anastrophyllum auritum, Anastrophyllum appendiculatum;Anastrophyllum calcaratum;Anastrophyllum capillaceum;Anastrophyllum crebrifolium;Anastrophyllum gambaragara;Anastrophyllum gambaragarae;Anastrophyllum glazioui;Anastrophyllum glaziovii;Anastrophyllum grossitextum;Anastrophyllum hintzeanum;Anastrophyllum leucocephalum;Anastrophyllum leucostomum var capillaceum;Anastrophyllum leucostomum;Jungermannia aurita;Jungermannia leucocephala;Jungermannia leucostoma;Marsupella aurita;Marsupella pusilla;Nardia aurita;Sarcocyphos auritus;Sphenolobus savioi
- Apotreubia pusilla, Treubia pusilla
- Asterella pappii, Fimbraria gondarensis;Fimbraria pappii;Fimbriaria pappii;Fimbriaria pusilla;Hypenantron gondarense;Hypenantron pappii
- Balantiopsis diplophylla, Jungermannia diplophylla Hookf & Taylor;Gottschea diplophylla Hookf & Taylor Nees;Gymnanthe diplophylla Hookf & Taylor Mitt;Balantiopsis brotheri Steph;Balantiopsis decurrens Steph;Balantiopsis kingwella Steph;Balantiopsis pusilla Steph;Isotachis pusilla Steph;Balantiopsis subkingwella Steph;Balantiopsis wattsiana Steph & Watts;Balantiopsis kirtoni Steph;Balantiopsis brotheri;Balantiopsis decurrens;Balantiopsis diplophylla fo paucidentata;Balantiopsis kingwella;Balantiopsis philippinensis;Balantiopsis pusilla;Balantiopsis subkingwella;Balantiopsis wattsiana
- Cardellina pusilla, Wilsons Warbler;Wilsonia pusilla
- Cheilolejeunea nipponica, Euosmolejeunea nipponica;Euosmolejeunea obtusifolia;Harpalejeunea obtusifolia;Strepsilejeunea nipponica;Strepsilejeunea pusilla
- Chiloscyphus pusillus, Lophocolea pusilla
- Cischweinfia pusilla, Aspasia pusilla
- Cololejeunea hattoriana, Campylolejeunea pusilla
- Cololejeunea metzgeriopsis, Lejeunea metzgeriopsis;Metzgeriopsis pusilla
- Cololejeunea pusilla, Physocolea pusilla
- Drosera biflora, Drosera pusilla
- Erycina pusilla, Epidendrum pusillum;Oncidium pusillum;Psygmorchis pusilla
- Fossombronia pusilla, Jungermannia pusilla L;Noteroclada perpusilla Colenso;Fossombronia perpusilla Colenso Steph;Fossombronia loitlesbergeri;Fossombronia maritima;Fossombronia perpusilla;Fossombronia pusilla var corsa;Fossombronia pusilla var decipiens;Fossombronia pusilla var maritima;Fossombronia pusilla var ochrospora;Fossombronia pusilla var pusilla;Fossombronia wondraczekii var loitlesbergeri;Noteroclada perpusilla
- Gonocarpus pusillus, Haloragis pusilla Benth;Haloragis lanceolata RBr ex Benth;Haloragis pusilla Benth var pusilla
| - Hypatopa fluxella, Hypatopa pusilla;Hypatopa zelleriella
- Jungermannia jenseniana, Haplozia pusilla;Jungermannia pusilla CEO Jensen H Buch;Solenostoma jenseniana;Solenostoma pusillum
- Kefersteinia lafontainei, Kefersteinia pusilla
- Lejeunea sordida, Jungermannia sordida Nees;Hygrolejeunea asperifolia;Hygrolejeunea pusilla;Hygrolejeunea sordida;Jungermannia sordida
- Lindsaea lancea_remota, Lindsaea pumila var remota;Lindsaea pusilla
- Lopholejeunea subfusca, Jungermannia subfusca Nees;Jungermannia subfusca;Lejeunea sagraeana var grandiloba;Lejeunea sagraeana var pusilla;Lejeunea sagraeana;Lejeunea subfusca;Lopholejeunea asiatica;Lopholejeunea boivinii;Lopholejeunea finschiana;Lopholejeunea formosana;Lopholejeunea gabonensis;Lopholejeunea indica;Lopholejeunea moenkemeyeri;Lopholejeunea nilgiriensis;Lopholejeunea pyriflora;Lopholejeunea sagraeana var subfusca;Lopholejeunea sagraeana;Phragmicoma sagraeana;Phragmicoma subfusca;Symbiezidium sagraeanum;Symbiezidium subfuscum
- Mactra jacksonensis, Jackson's Trough Shell;Matthew's Trough Shell;Trigonella pusilla;Mactra matthewsi Tate, 1889
- Microlejeunea bullata, Lejeunea bullata;Lejeunea pusilla;Lejeunea ulicina subsp bullata;Microlejeunea pusilla
- Mimosa camporum, Mimosa flavescens;Mimosa pusilla;Mimosa flaviseta;Mimosa martensis
- Porella japonica, Madotheca japonica;Madotheca pallida;Madotheca pusilla;Porella japonica fo pusilla;Porella pallida
- Pterolepis trichotoma, Rhexia trichotoma;Rhexia strigosa;Pterolepis ladanoides;Rhexia ladanoides;Pterolepis pusilla;Rhexia hispida;Arthrostemma ladanoides;Rhexia pumila;Pterolepis hispida;Pterolepis pumila;Pterolepis pumila var procera
- Riccardia pusilla, Aneura pusilla Steph;Aneura pusilla
- Riccia bifurca, Riccia arvensis;Riccia minutissima;Riccia pusilla;Riccia subcrispula
- Thylamys pusilla, Small fat-tailed opossum;Didelphis pusilla
- Utricularia pusilla, Tiny bladderwort;Setiscapella pusilla;Utricularia leptantha
- Xanthosia huegelii, Heath Xanthosia;Leucolaena huegelii Benth;Xanthosia glabrata Bunge;Xanthosia pusilla Bunge;Xanthosia pusilla var glabrata Bunge Benth;Xanthosia pusilla Bunge var pusilla;Xanthosia villosa Turcz
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