| Riccardia aberrans (Stephani) Gradst. | Accepted |  | TRO | 
	
		
			| Riccardia aequicellularis (Stephani) Hewson | Accepted |  | TRO | 
	
		
			| Riccardia aequitexta (Stephani) E. A. Brown | Accepted |  | TRO | 
	
		
			| Riccardia alba (Colenso) E. A. Brown | Accepted |  | TRO | 
	
		
			| Riccardia albomarginata (Stephani) Schiffner | Accepted |  | TRO | 
	
		
			| Riccardia alcicornis (Hook. f. & Taylor) Trevis. | Accepted |  | TRO | 
	
		
			| Riccardia algoides (Taylor) Meenks | Accepted |  | TRO | 
	
		
			| Riccardia amazonica (Spruce) Schiffner ex Gradst. & Hekking | Accepted |  | TRO | 
	
		
			| Riccardia andina (Spruce) Herzog | Accepted |  | TRO | 
	
		
			| Riccardia anguste-alata (Stephani) Hewson | Accepted |  | TRO | 
	
		
			| Riccardia angustissima (Stephani) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia aspera (Stephani) Grolle | Accepted |  | TRO | 
	
		
			| Riccardia australis (Hook. f. & Lév.) E. A. Brown | Accepted |  | TRO | 
	
		
			| Riccardia autoica (Stephani) A. Evans | Accepted |  | TRO | 
	
		
			| Riccardia barbiflora (Stephani) Piippo | Accepted |  | TRO | 
	
		
			| Riccardia bipinnatifida (Colenso) Hewson | Accepted |  | TRO | 
	
		
			| Riccardia bogotensis (Gottsche) Pagan | Accepted |  | TRO | 
	
		
			| Riccardia boliviensis (Stephani) Meenks | Accepted |  | TRO | 
	
		
			| Riccardia breviramosa (Stephani) A. Evans | Accepted |  | TRO | 
	
		
			| Riccardia brunnea (Stephani) S. Hatt. | Accepted |  | TRO | 
	
		
			| Riccardia calcarea (Stephani) Meenks | Accepted |  | TRO | 
	
		
			| Riccardia canaliculata (Nees) Schiffner | Accepted |  | TRO | 
	
		
			| Riccardia capillacea (Stephani) Meenks & C. De Jong | Accepted |  | TRO | 
	
		
			| Riccardia cardotii (Stephani) S.C. Srivast. & Udar | Accepted |  | TRO | 
	
		
			| Riccardia cataractarum (Spruce) Schiffner | Accepted |  | TRO | 
	
		
			| Riccardia cervicornis (Spruce) Herzog ex Gradst. & Hekking | Accepted |  | TRO | 
	
		
			| Riccardia chamedryfolia (With.) Grolle | Accepted |  | TRO | 
	
		
			| Riccardia ciliolata (Spruce) Gradst. | Accepted |  | TRO | 
	
		
			| Riccardia colensoi (Stephani) W. Martin | Accepted |  | TRO | 
	
		
			| Riccardia columbica (Stephani) Hässel de Menéndez | Accepted |  | TRO | 
	
		
			| Riccardia comata (Stephani) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia compacta (Stephani) S.W. Arnell | Accepted |  | TRO | 
	
		
			| Riccardia comptonii (Pearson) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia costata (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia crassa (Schwägr.) Carrington & Pearson | Accepted |  | TRO | 
	
		
			| Riccardia crassicaulis (Stephani) Meenks & C. De Jong | Accepted |  | TRO | 
	
		
			| Riccardia densiramea (Stephani) S. Hatt. | Accepted |  | TRO | 
	
		
			| Riccardia effusa (Stephani) E.A. Hodgs. | Accepted |  | TRO | 
	
		
			| Riccardia elata (Stephani) Schiffner | Accepted |  | TRO | 
	
		
			| Riccardia elegans (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia fastigiata (Lehm.) Trevis. | Accepted |  | TRO | 
	
		
			| Riccardia filicina (Colenso) E.A. Hodgs. | Accepted |  | TRO | 
	
		
			| Riccardia flaccia (Stephani) S. Hatt. | Accepted |  | TRO | 
	
		
			| Riccardia flagellaris (A. Gepp) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia floribunda (Stephani) A. Evans | Accepted |  | TRO | 
	
		
			| Riccardia formosensis (Stephani) Horik. | Accepted |  | TRO | 
	
		
			| Riccardia fruticosa (Stephani) Furuki | Accepted |  | TRO | 
	
		
			| Riccardia fucoides (Sw.) A. Massal. | Accepted |  | TRO | 
	
		
			| Riccardia fuscobrunnea (Stephani) A. Evans | Accepted |  | TRO | 
	
		
			| Riccardia georgiensis (Stephani) Hässel de Menéndez | Accepted |  | TRO | 
	
		
			| Riccardia glaziovii (Spruce) Meenks | Accepted |  | TRO | 
	
		
			| Riccardia gogolensis (Stephani) Hewson | Accepted |  | TRO | 
	
		
			| Riccardia graeffei (Stephani) Hewson | Accepted |  | TRO | 
	
		
			| Riccardia granulata (Stephani) A. Evans | Accepted |  | TRO | 
	
		
			| Riccardia gunniana (Stephani) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia hans-meyeri (Stephani) Meenks & C. De Jong | Accepted |  | TRO | 
	
		
			| Riccardia hebridensis (Stephani) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia herzogiana (Stephani) Meenks & C. De Jong | Accepted |  | TRO | 
	
		
			| Riccardia humilis (Gottsche) O. Yano | Accepted |  | TRO | 
	
		
			| Riccardia hyalina (Stephani) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia hymenophytoides (Spruce) Meenks | Accepted |  | TRO | 
	
		
			| Riccardia intricata (Stephani) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia kowaldiana (Stephani) Hewson | Accepted |  | TRO | 
	
		
			| Riccardia koyensis (Stephani) S. Hatt. | Accepted |  | TRO | 
	
		
			| Riccardia latifrons (Lindb.) Lindb. | Accepted |  | TRO | 
	
		
			| Riccardia lepidomitra (Spruce) Gradst. | Accepted |  | TRO | 
	
		
			| Riccardia leptophylla (Spruce) Herzog | Accepted |  | TRO | 
	
		
			| Riccardia leratii (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia lichenoides (Stephani) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia lobulata (Colenso) E.A. Hodgs. | Accepted |  | TRO | 
	
		
			| Riccardia longiflora (Stephani) Hewson | Accepted |  | TRO | 
	
		
			| Riccardia longispica (Stephani) Pearson | Accepted |  | TRO | 
	
		
			| Riccardia macrantha (Pearson) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia makinoana (Stephani) Yasuda | Accepted |  | TRO | 
	
		
			| Riccardia marginata (Colenso) Pearson | Accepted |  | TRO | 
	
		
			| Riccardia metzgeriiformis (Stephani) Schiffner | Accepted |  | TRO | 
	
		
			| Riccardia micropinna (Stephani) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia multispica (Stephani) S. Hatt. | Accepted |  | TRO | 
	
		
			| Riccardia muscoides (Colenso) E.A. Hodgs. | Accepted |  | TRO | 
	
		
			| Riccardia nadeaudiana (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia nadeaudii (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia nagasakiensis (Stephani) S. Hatt. | Accepted |  | TRO | 
	
		
			| Riccardia nana (Hook. f. & Taylor) Trevis. | Accepted |  | TRO | 
	
		
			| Riccardia nitida (Colenso) E.A. Hodgs. | Accepted |  | TRO | 
	
		
			| Riccardia nudiflora (Stephani) Grolle | Accepted |  | TRO | 
	
		
			| Riccardia nudimitra (Stephani) A. Evans | Accepted |  | TRO | 
	
		
			| Riccardia onigajona (Stephani) S. Hatt. | Accepted |  | TRO | 
	
		
			| Riccardia pallida (Spruce) Meenks & C. De Jong | Accepted |  | TRO | 
	
		
			| Riccardia pallidevirens (Stephani) A. Evans | Accepted |  | TRO | 
	
		
			| Riccardia palmata (Hedw.) Carruth. | Accepted |  | TRO | 
	
		
			| Riccardia palmatifida (Stephani) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia papillata (Gottsche) Hässel de Menéndez | Accepted |  | TRO | 
	
		
			| Riccardia papulosa (Stephani) E. A. Brown | Accepted |  | TRO | 
	
		
			| Riccardia parasitans (Stephani) Meenks & C. De Jong | Accepted |  | TRO | 
	
		
			| Riccardia parvula Schiffner | Accepted |  | TRO | 
	
		
			| Riccardia pectinata (Austin) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia pembaiensis (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia pinnatifida (F. Weber) Carruth. | Accepted |  | TRO | 
	
		
			| Riccardia plana (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia planiflora (Stephani) S. Hatt. | Accepted |  | TRO | 
	
		
			| Riccardia plumiformis (Spruce) Hässel de Menéndez ex Meenks | Accepted |  | TRO | 
	
		
			| Riccardia plumosa (Mitt.) E.O. Campb. | Accepted |  | TRO | 
	
		
			| Riccardia poeppigiana (Lehm. & Lindenb.) Hässel de Menéndez | Accepted |  | TRO | 
	
		
			| Riccardia polyclada (Mitt. ex Thurn) | Accepted |  | TRO | 
	
		
			| Riccardia pusilla (Stephani) E. A. Brown | Accepted |  | TRO | 
	
		
			| Riccardia ramosissima (Stephani) Grolle | Accepted |  | TRO | 
	
		
			| Riccardia rigida (Stephani) S. Hatt. | Accepted |  | TRO | 
	
		
			| Riccardia robusta (Stephani) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia rupicola (Stephani) Hewson | Accepted |  | TRO | 
	
		
			| Riccardia saccatiflora (Stephani) S.W. Arnell | Accepted |  | TRO | 
	
		
			| Riccardia sinuata (Hook.) Trevis. | Accepted |  | TRO | 
	
		
			| Riccardia spectabilis (Stephani) A. Evans | Accepted |  | TRO | 
	
		
			| Riccardia sprucei (Stephani) Meenks & C. De Jong | Accepted |  | TRO | 
	
		
			| Riccardia squarrosa (Stephani) Gradst. | Accepted |  | TRO | 
	
		
			| Riccardia stephanii (Besch.) E.W. Jones | Accepted |  | TRO | 
	
		
			| Riccardia stipatiflora (Stephani) Pagan | Accepted |  | TRO | 
	
		
			| Riccardia stolonifera (Stephani) E.A. Hodgs. | Accepted |  | TRO | 
	
		
			| Riccardia subpalmata (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia subsimplex (Stephani) R.M. Schust. | Accepted |  | TRO | 
	
		
			| Riccardia tahitensis (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia tamariscina (Stephani) Schiffner | Accepted |  | TRO | 
	
		
			| Riccardia tenax (Stephani) A. Evans | Accepted |  | TRO | 
	
		
			| Riccardia tenuicula (Spruce) Schiffner ex Meenks | Accepted |  | TRO | 
	
		
			| Riccardia tosana (Stephani) S. Hatt. | Accepted |  | TRO | 
	
		
			| Riccardia trichomanoides (Spruce) Hässel de Menéndez ex Meenks | Accepted |  | TRO | 
	
		
			| Riccardia tutuilana (Pearson) H.A. Mill. | Accepted |  | TRO | 
	
		
			| Riccardia umbrosa (Stephani) Hässel de Menéndez | Accepted |  | TRO | 
	
		
			| Riccardia valida (Stephani) J.J. Engel | Accepted |  | TRO | 
	
		
			| Riccardia venosa (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia villosa (Stephani) S.C. Srivast. & Udar | Accepted |  | TRO | 
	
		
			| Riccardia virens (Stephani) Hürl. | Accepted |  | TRO | 
	
		
			| Riccardia wallisii (Stephani) Gradst. | Accepted |  | TRO | 
	
		
			| Riccardia wattsiana (Stephani) Hewson | Accepted |  | TRO |