• sagasteguii
• salmonea
• samaipatensis
• sanctae-crucis => paraensis
• sanctae-marta => Racinaea sanctaemartae
• sangii
• sanguinea => Guzmania sanguinea var. sanguinea
• sanguinolenta => Werauhia sanguinolenta
• santiagoensis
• santiagoensis forma adpressa
• santiagotuxtlensis => chlorophylla
• santieusebii
• santosiae
• saundersii => Vriesea saundersii
• saxatilis => Excluded taxa
• saxicola => tectorum

• scalarifolia => paleacea
• scalaris => Vriesea scalaris var. scalaris
• scaligera => Lemeltonia scaligera
• scaposa
• sceptriformis
• scharfii => Racinaea hasei
• schatzlii
• schenckiana => paleacea
• schiedeana
• schiedeana subsp. glabrior => glabrior
• schiedeana 'Minor'
• schiedeana var. totolapanensis => glabrior
• schimperiana
• schlechtendalii => multicaulis
• schlumbergeri => polystachia
• schreiteri
• schuechii => Pitcairnia albiflos
• schultzei
• schumanniana => Racinaea schumanniana
• schunkei => Racinaea shunkei
• schusteri
• scoparia => purpurea
• scopus => ionantha
• scorpiura => Racinaea pendulispica

• secunda Sessé and Moc. => Pitcairnia palmeri var. palmeri
• secunda sensu André => mima
• secunda sensu L. B. Smith => cucullata
• secunda
• secunda var. major
• secunda var. vivipara => secunda
• secundifolia
• seemannii => Racinaea seemannii
• seemannii var. mezii => Racinaea pulchella
• segregata => Vriesea morrenii
• seideliana
• seleriana
• selleana
• selloa => linearis
• selloana => Vriesea ensiformis var. ensiformis
• sericea => xiphioides
• serrata L. => Aechmea serrata
• sessemocinoi
• sessiliflora => Catopsis sessiliflora
• setacea Baker => juncea
• setacea Hooker => compressa
• setacea Sw.
• setacea var. tenuifolia => setacea
• setiformis

• sieboldiana => leiboldiana
• sierrahalensis
• sierrajuarezensis
• sigmoidea
• simplex => Vriesea simplex
• simplexa => makoyana
• simulata
• singularis => Josemania singularis
• sintenisii => utriculata
• sinuosa => Racinaea sinuosa
• sinuosa var. quirozii => Racinaea pugiformis
• sinuosa var. sinuosa => Racinaea sinuosa var. sinuosa

• Small ball moss
• x smalliana
• smithiana => deppeana

• socialis
• sodiroi
• somnians
• sonorensis => elizabethiae
• soratensis => streptocarpa
• sordida => Guzmania lingulata var. lingulata
• Southern needleleaf

• sparsiflora => leiboldiana
• spathacea
• speciosa => Vriesea splendens
• sphaerocephala
• sphaerocephala var. tarijesis
• spiculosa (in part) => tovarensis
• spiculosa => Racinaea spiculosa
• spiculosa var. micrantha => Racinaea spiculosa var. micrantha
• spiculosa var. palmana => Racinaea spiculosa var spiculosa
• spiculosa var. rothschuhiana => Racinaea rothschuhiana
• spiculosa var. spiculosa => Racinaea spiculosa var. spiculosa
• spiculosa var. stenoglossa => Racinaea spiculosa var. stenoglossa
• spiculosa var. typica => Racinaea spiculosa var. spiculosa
• spiculosa var. ustulata => Racinaea spiculosa var. ustulata
• spinosa => Excluded taxa
• spiraliflora
• spiralipetala
• splendens => Lutheria splendens
• splendens var. formosa => Lutheria splendens var. formosa
• splendida => Excluded taxa
• Spreading airpolant
• sprengeliana
• sprengelianum => sprengeliana
• spuria => Vriesea chontalensis

• squamulosa => caerulea

• standleyi
• staticeflora => filifolia
• staticiflora => juncea
• steiropoda
• stellifera
• x stenlanata
• stenoglossa => Racinaea spiculosa var. stenoglossa
• stenostachya => Lutheria glutinosa
• stenoura
• stenoura var. gonzalezii => stenoura var. tripinnata
• stenoura var. mauroi
• stenoura var. stenoura => stenoura
• stenoura var. tripinnata
• steyermarkii => Racinaea steyermarkii
• stipitata
• stolpii => virescens
• stoltenii
• straminea
• streptocarpa
• streptocarpa var. aureiflora
• streptocarpa var. filifolia => streptocarpa
• streptocarpa var. peruviana => streptocarpa
• streptocarpa var. pungens => streptocarpa
• streptocarpa var. streptocarpa => streptocarpa
• streptophylla
• striata => incarnata
• stricta Sol.
• stricta Lindl. => aeranthos
• stricta var. albifolia
• stricta var. caulescens => tenuifolia
• stricta var. disticha
• stricta var. krameri => stricta
• stricta f. nivea
• stricta var. paraguariensis => recurvifolia
• stricta subsp. piniformis
• stricta 'Rigid leaf'
• stricta var. stricta => stricta
• strobeliae => strobelii
• strobelii
• strobeliorum => Racinaea strobeliorum
• strobilantha Baker => imperialis
• strobilantha Poiret => Guzmania strobilantha
• strobilifera => bourgaei

• suaveolens => xiphioides
• subalata => Racinaea subalata
• subandina => Cipuropsis subandina
• subconcolor
• subimbricata => elongata var. subimbricata
• subinflata
• sublaxa => variabilis
• subsecunda => Werauhia subsecunda
• subsecundifolia => recurvifolia var. subsecundifolia
• subteres
• subtropicalis => confinis
• subulata Vell. => tenuifolia
• subulata Baker => chaetophylla
• subulifera
• sucrei
• sueae => parryi
• suescana
• suesilliae
• superba
• superinsignis
• supermexicana
• supermexicana var. pendula
• supermexicana var. saxicola
• surinamensis => tenuifolia

• swartzii => Vriesea swartzii