Géneros de organismos asociados: Babiana [5 taxones], Baccharis [167 taxones], Bacidia [73 taxones], Bacillopeltis [1 taxon], Bacillus [5 taxones], Backhousia [2 taxones], Bacopa [1 taxon], Bactris [79 taxones], Bactrodesmiella [13 taxones], Bactrodesmium [6 taxones], Badhamia [6 taxones], Badiera [1 taxon], Baeckea [3 taxones], Baeomyces [15 taxones], Baeospora [1 taxon], Baeothryon [1 taxon], Baeturia [7 taxones], Bagnisiella [2 taxones], Baissea [1 taxon], Balaniopsis [3 taxones], Balanites [7 taxones], Balansia [1 taxon], Balansiopsis [18 taxones], Balanus [1 taxon], Balfourodendron [1 taxon], Baliospermum [5 taxones], Balladyna [7 taxones], Balladynastrum [2 taxones], Balladynopsis [1 taxon], Ballota [220 taxones], Baloghia [2 taxones], Balsamocitrus [7 taxones], Balsamodendrum [1 taxon], Baltimora [3 taxones], Bambusa [706 taxones], Banara [8 taxones], Bandicota [2 taxones], Banisteria [45 taxones], Banksia [54 taxones], Baphia [22 taxones], Baptisia [1 taxon], Barbacenia [1 taxon], Barbarea [23 taxones], Barbieria [1 taxon], Barilius [2 taxones], Barkhausia [31 taxones], Barleria [33 taxones], Barnadesia [3 taxones], Barnettia [47 taxones], Barosma [12 taxones], Barringtonia [29 taxones], Bartalinia [4 taxones], Bartsia [2 taxones], Barya [2 taxones], Baryxylum [3 taxones], Basanacantha [5 taxones], Basella [26 taxones], Basidiodendron [1 taxon], Basilepta [3 taxones], Basilicum [1 taxon], Bassia [14 taxones], Bastardia [7 taxones], Bastardiopsis [1 taxon], Batemannia [1 taxon], Batistamnus [99 taxones], Batistina [3 taxones], Batistospora [6 taxones], Batodendron [1 taxon], Battarrina [1 taxon], Bauhinia [379 taxones], Beaufortia [1 taxon], Beaumontia [3 taxones], Beauveria [2 taxones], Becium [11 taxones], Beckeropsis [10 taxones], Beckmannia [9 taxones], Beelia [24 taxones], Begonia [73 taxones], Behaimia [1 taxon], Behnia [28 taxones], Beilschmiedia [141 taxones], Belainopsis [6 taxones], Belairia [6 taxones], Belamcanda [6 taxones], Bellevalia [27 taxones], Bellis [17 taxones], Bellucia [10 taxones], Beloperone [1 taxon], Beltrania [37 taxones], Beltraniella [16 taxones], Beltraniopsis [28 taxones], Bembidium [3 taxones], Bemisia [6 taxones], Bena [5 taxones], Benedictella [1 taxon], Benekea [2 taxones], Benincasa [23 taxones], Berberis [911 taxones], Berchemia [12 taxones], Bergenia [7 taxones], Berkheya [75 taxones], Berkleasmium [3 taxones], Berlesiella [7 taxones], Berlinia [4 taxones], Bernardia [1 taxon], Bersama [30 taxones], Berteroa [71 taxones], Bertholletia [75 taxones], Bertia [3 taxones], Besleria [5 taxones], Beta [593 taxones], Betonica [91 taxones], Betula [2505 taxones], Bewsia [6 taxones], Biatorella [1 taxon], Bidens [491 taxones], Biebersteinia [2 taxones], Bifrenaria [1 taxon], Bifusella [1 taxon], Bigelowia [2 taxones], Bignonia [26 taxones], Bihai [6 taxones], Bilbergia [1 taxon], Bilimbia [4 taxones], Billbergia [4 taxones], Billia [2 taxones], Biophomopsis [10 taxones], Biophytum [6 taxones], Bioporthe [2 taxones], Biota [11 taxones], Bipolaris [7 taxones], Bischofia [7 taxones], Biscogniauxia [14 taxones], Biscutella [1 taxon], Biserrula [1 taxon], Bisgoeppertia [3 taxones], Bison [3 taxones], Bispora [10 taxones], Bisporella [7 taxones], Bivonaea [1 taxon], Bixa [57 taxones], Bjerkandera [2 taxones], Blainvillea [8 taxones], Blakea [5 taxones], Blastobotrys [3 taxones], Blastotrichum [2 taxones], Blechnum [55 taxones], Blechum [49 taxones], Bledius [1 taxon], Blepharis [12 taxones], Blepharocalyx [4 taxones], Bletia [18 taxones], Blighia [34 taxones], Blosyrus [1 taxon], Blumea [26 taxones], Blumeria [8 taxones], Blysmus [2 taxones], Blyttiomyces [3 taxones], Bobartia [2 taxones], Bocconia [12 taxones], Boea [1 taxon], Boehmeria [50 taxones], Boenninghausenia [1 taxon], Boerhaavia [1 taxon], Boerhavia [73 taxones], Boerlagella [1 taxon], Bogenhardia [1 taxon], Boisduvalia [2 taxones], Bolax [1 taxon], Bolbitis [1 taxon], Bolboschoenus [22 taxones], Boldoa [46 taxones], Boletopsis [1 taxon], Boletus [53 taxones], Boletus [6 taxones], Bomarea [47 taxones], Bomaria [1 taxon], Bombacopsis [12 taxones], Bombax [56 taxones], Bombyx [14 taxones], Bonamia [2 taxones], Bonaria [4 taxones], Boopis [5 taxones], Boquila [1 taxon], Borago [15 taxones], Borassus [67 taxones], Borbonia [2 taxones], Boronia [1 taxon], Borrera [7 taxones], Borreria [169 taxones], Borrichia [5 taxones], Bos [1513 taxones], Boscia [4 taxones], Bosea [1 taxon], Boselaphus [59 taxones], Bosistoa [1 taxon], Bosquiea [13 taxones], Boswellia [15 taxones], Bothriocera [4 taxones], Bothriochloa [234 taxones], Bothynoderes [1 taxon], Botryobasidium [6 taxones], Botryodiplodia [2 taxones], Botryosphaeria [31 taxones], Botryosporium [2 taxones], Botryotinia [15 taxones], Botrytis [5 taxones], Bouchardatia [1 taxon], Bouchea [9 taxones], Bougainvillea [93 taxones], Bourreria [17 taxones], Boussingaultia [2 taxones], Bouteloua [15 taxones], Bowdichia [11 taxones], Bowkeria [5 taxones], Bowlesia [2 taxones], Brabejum [15 taxones], Brachiaria [568 taxones], Brachinus [1 taxon], Brachistus [2 taxones], Brachybotrys [3 taxones], Brachychiton [4 taxones], Brachycome [5 taxones], Brachyglottis [5 taxones], Brachylaena [57 taxones], Brachylepis [1 taxon], Brachynus [1 taxon], Brachyotum [1 taxon], Brachypodium [104 taxones], Brachyramphus [1 taxon], Brachysporiella [19 taxones], Brachysporium [33 taxones], Brachystegia [31 taxones], Brachythecium [2 taxones], Bracon [1 taxon], Brahea [1 taxon], Brahmina [1 taxon], Brandisia [1 taxon], Brasiliomyces [1 taxon], Brassaia [3 taxones], Brassaiopsis [4 taxones], Brassavola [6 taxones], Brassia [1 taxon], Brassica [1135 taxones], Brassolis [1 taxon], Bravaisia [4 taxones], Bredemeyera [8 taxones], Brefeldiella [2 taxones], Bremia [22 taxones], Bretschneidera [1 taxon], Brevicoryne [6 taxones], Breweria [2 taxones], Breynia [10 taxones], Brickellia [3 taxones], Bridelia [45 taxones], Brigantiaea [1 taxon], Brillantaisia [8 taxones], Briosia [1 taxon], Briza [14 taxones], Bromelia [66 taxones], Bromopsis [6 taxones], Bromus [491 taxones], Brontispa [5 taxones], Brooksia [5 taxones], Brosimum [44 taxones], Broughtonia [1 taxon], Broussonetia [44 taxones], Browallia [10 taxones], Brownea [8 taxones], Brownlowia [1 taxon], Bruguiera [13 taxones], Brumea [3 taxones], Brunchorstia [42 taxones], Brunellia [8 taxones], Brunfelsia [14 taxones], Brunnera [1 taxon], Brunsvigia [5 taxones], Brya [12 taxones], Bryochiton [7 taxones], Bryonia [7 taxones], Bryonopsis [4 taxones], Bryophyllum [13 taxones], Bryoria [2 taxones], Bryum [6 taxones], Bubalus [31 taxones], Bubonium [1 taxon], Buchanania [17 taxones], Buchenavia [80 taxones], Buchloë [1 taxon], Buchnera [3 taxones], Bucida [142 taxones], Bucklandia [4 taxones], Buddleja [138 taxones], Budleia [2 taxones], Buellia [9 taxones], Buelliella [2 taxones], Buglossoides [59 taxones], Bulbine [21 taxones], Bulbinella [2 taxones], Bulbophyllum [2 taxones], Bulbostylis [13 taxones], Bullaserpens [16 taxones], Bulliardella [2 taxones], Bulnesia [1 taxon], Bumelia [12 taxones], Bunchosia [13 taxones], Bungea [1 taxon], Bunias [16 taxones], Bunium [13 taxones], Bupleurum [91 taxones], Burchellia [28 taxones], Burkea [4 taxones], Bursera [151 taxones], Buschia [1 taxon], Butea [75 taxones], Buteo [1 taxon], Butia [21 taxones], Butomus [6 taxones], Butyrospermum [1 taxon], Buxus [476 taxones], Byrsomyces [63 taxones], Byrsonima [236 taxones], Byssocallis [4 taxones], Byssoloma [200 taxones], Byssopeltis [9 taxones], Byssostilbe [2 taxones], Bystropogon [3 taxones], Byttneria [15 taxones]