  Barbula marginata | 
  Barbula muralis | 
  Barbula papillosa | 
  Barbula reflexa | 
  Barbula rigida | 
  Barbula ruralis | 
  Barbula setacea | 
  Barbula subulata | 
  Barbula unguiculata | 
  Barbula unguiculata | 
  Barbula unguiculata | 
  Barbula unguiculata | 
  Barclaya longifolia | 
  Barkeria lindleyana v. centerae | 
  Barkeria lindleyana var. centeriae | 
  Barkhausia foetida | 
  Barkhausia foetida | 
  Bartonia decapetala | 
  Bartramia halleriana | 
  Bartramia halleriana | 
  Bartramia halleriana | 
  Bartramia halleriana | 
  Bartramia ithyphylla | 
  Bartramia pomiformis | 
  Bartramia pomiformis | 
  Bartramia stricta | 
  Bartschia alpina | 
  Bartschia alpina | 
  Bartsia alpina | 
  Bartsia alpina | 
  Bartsia alpina | 
  Bartsia odontites | 
  Bartsia viscosa | 
  Basidiobolus ranarum | 
  Basidiobolus ranarum | 
  Basidiophora entospora | 
  Basidiophora entospora | 
  Bassia butyracea | 
  Bassia laniflora | 
  Batesia floribunda | 
  Batrachospermum dillenii | 
  Batrachospermum dillenii | 
  Batrachospermum helminthosum | 
  Batrachospermum moniliforme | 
  Batrachospermum moniliforme | 
  Batrachospermum moniliforme | 
  Batrachospermum moniliforme | 
  Batrachospermum vagum | 
  Batschia laurifolia | 
  Battarea guicciardiniana | 
  Bauhinia | 
  Bauhinia | 
  Bauhinia | 
  Bauhinia acuminata | 
  Bauhinia anguinea | 
  Bauhinia burkeana | 
  Bauhinia dipetala | 
  Bauhinia divaricata | 
  Bauhinia forficata | 
  Bauhinia forficata |