Boletus aberrans J. Blum 1969 [ILL; MB309625] 2. Boletus abieticola Thiers 1975 [LEG; MB309626] 3. Boletus abietinus Pers. ex J.F. Gmel. 1792 [LEG; MB234491] 4. Boletus abietinus Cumino 1805 [ILL; MB156430] 5. Boletus abietinus Dicks. 1793 [ILL; MB169930] 6. Boletus abietinus DC. 1815 [ILL; MB170105] 7. Boletus abruptibulbus Roody, Both & B. Ortiz 2009 [LEG; MB512436] 8. Boletus acanthoides Bull. 1791 [LEG; MB169774] 9. Boletus acidulus (Fr.) Mussat 1900 [INV; MB169570] 10. Boletus acidus Peck 1905 [LEG; MB170075] 11. Boletus acris Schulzer 1880 [LEG; MB101840] 12. Boletus acris Pat. 1928 [ILL; MB508072] 13. Boletus aculifer Corner 1972 [LEG; MB309627] 14. Boletus adonis Pöder & H. Ladurner 2002 [LEG; MB374231] 15. Boletus adustus Willd. 1787 [LEG; MB170182] 16. Boletus adustus var. crispus (Pers.) Pers. 1801 [LEG; MB468238] 17. Boletus aemilii Barbier 1915 [LEG; MB169516] 18. Boletus aeneus Gonn. & Rabenh. [ILL; MB158850] 19. Boletus aereus Bull. 1789 [LEG; MB159051] 20. Boletus aereus Secr. [INV; MB159002] 21. Boletus aereus var. carne-dilute-sulfurea Bull. 1791 [INV; MB498129] 22. Boletus aereus var. carne-nivea Bull. 1791 [INV; MB498130] 23. Boletus aereus var. cepa (Thore) DC. 1815 [LEG; MB498131] 24. Boletus aereus var. cravetta (Bellardi) DC. 1815 [LEG; MB498132] 25. Boletus aereus var. leucoporus Pers. 1825 [LEG; MB498133] 26. Boletus aereus var. squarrosus De Rezende Pinto 1940 [LEG; MB345985] 27. Boletus aeruginascens Opat. 1836 [LEG; MB159364] 28. Boletus aerugineus J. Murr.{?} [LEG; MB158691] 29. Boletus aesculi-flavae Schwein. 1822 [UNA; MB158800] 30. Boletus aestivalis (Paulet) Fr. 1838 [LEG; MB172910] 31. Boletus aestivalis var. pinicola (Vittad.) Sacc. 1910 [LEG; MB173505] 32. Boletus aestivus Schlotterbach 1760 [LEG; MB495501] 33. Boletus aetnensis Inzenga 1869 [LEG; MB173038] 34. Boletus affinis Peck 1872 [LEG; MB173349] 35. Boletus affinis var. maculosus Peck 1879 [LEG; MB173658] 36. Boletus affinis var. reticulatus A.H. Sm. 1973 [LEG; MB347807] 37. Boletus agaricoides Thunb. 1784 [UNA; MB172992] 38. Boletus agaricum Pollini 1824 [LEG; MB468239] 39. Boletus alabamensis (Murrill) Sacc. & Trotter 1912 [LEG; MB151817] 40. Boletus alachuanus (Murrill) Murrill 1938 [LEG; MB256138] 41. Boletus albellus Peck 1888 [LEG; MB372462] 42. Boletus albellus Massee 1909 [ILL; MB151581] 43. Boletus albellus var. reticulatus (Murrill) Murrill 1946 [LEG; MB499638] 44. Boletus albidipes Peck 1912 [LEG; MB152133] 45. Boletus albidus Pers. 1801 [ILL; MB486530] 46. Boletus albidus Schaeff. 1774 [LEG; MB151660] 47. Boletus albidus (Romagnoli) Maire 1901 [ILL; MB152267] 48. Boletus albidus Roques 1832 [ILL; MB463296] 49. Boletus albidus Wahlenb. 1812 [ILL; MB151770] 50. Boletus albidus Sowerby 1799 [ILL; MB173159] 51. Boletus albidus subsp. eupachypus Konrad 1929 [LEG; MB256224] 52. Boletus albidus var. communis Alb. & Schwein. 1805 [LEG; MB498134] 53. Boletus albidus var. constrictus (Bolton) Pers. 1801 [LEG; MB498135] 54. Boletus albipes Pat. 1928 [LEG; MB250553] 55. Boletus albipurpureus Corner 1974 [LEG; MB309628] 56. Boletus albirubens Corner 1972 [LEG; MB309629] 57. Boletus albisulphureus (Murrill) Murrill 1945 [LEG; MB284560] 58. Boletus alboater Schwein. 1822 [LEG; MB168982] 59. Boletus alboater subsp. floccosus (Schwein.) Schwein. [LEG; MB168953] 60. Boletus alboater var. floccosus (Schwein.) Fr. 1838 [LEG; MB499551] 61. Boletus albofarinaceus W.F. Chiu 1948 [LEG; MB372463] 62. Boletus albus Schaeff. 1774 [ILL; MB152711] 63. Boletus albus Huds. 1762 [LEG; MB152319] 64. Boletus albus Schrank 1789 [ILL; MB255269] 65. Boletus albus Bolton 1788 [ILL; MB158235] 66. Boletus albus Peck 1872 [ILL; MB158438] 67. Boletus albus Vent. 1812 [ILL; MB152871] 68. Boletus albus Gillet 1874 [ILL; MB158138] 69. Boletus albus Lambotte 1880 [ILL; MB158281] 70. Boletus albus Huds. 1778 [ILL; MB490611] 71. Boletus albus Sowerby 1799 [INV; MB490612] 72. Boletus alexandri Sagar & T.N. Lakh. 1996 [LEG; MB460311] 73. Boletus alliaceus Berk. 1881 [LEG; MB131875] 74. Boletus alliaceus Beeli 1926 [ILL; MB168358] 75. Boletus alliciens Berk. 1845 [LEG; MB168119] 76. Boletus alneus Pers. 1796 [LEG; MB468240] 77. Boletus altissimus Massee 1909 [LEG; MB167713] 78. Boletus alutaceus Morgan [LEG; MB167985] 79. Boletus alutaceus var. simlensis T.N. Lakh. & Sagar 1996 [INV; MB460312] 80. Boletus alutaceus var. subalutaceus T.N. Lakh. & Sagar 1996 [INV; MB460313] 81. Boletus alutarius Fr. 1815 [LEG; MB162290] 82. Boletus alveolarius Bosc 1811 [LEG; MB468241] 83. Boletus alwisii Massee 1909 [LEG; MB162902] 84. Boletus amabilis Peck 1900 [LEG; MB162671] 85. Boletus amaranthus Cetto 1991 [INV; MB360641] 86. Boletus amarellus Quél. 1883 [LEG; MB162979] 87. Boletus amaricans Pers. 1801 [ILL; MB162241] 88. Boletus amarus Pers. 1801 [LEG; MB486430] 89. Boletus amarus Vittad. [ILL; MB178582] 90. Boletus americanus Peck 1887 [LEG; MB179058] 91. Boletus americanus var. reticulipes Coker & Beers 1943 [LEG; MB345987] 92. Boletus amoenus Thüm. [LEG; MB178667] 93. Boletus ampliporus Peck 1873 [LEG; MB178985] 94. Boletus amygdalinus (Thiers) Thiers 1975 [LEG; MB309630] 95. Boletus amyloideus Thiers 1975 [LEG; MB309631] 96. Boletus amylosporus (A.H. Sm.) Wolfe 1986 [LEG; MB129960] 97. Boletus ananaeceps Berk. 1873 [LEG; MB178744] 98. Boletus ananas M.A. Curtis 1848 [LEG; MB179092] 99. Boletus angulatus Schumach. 1803 [LEG; MB468242] 100. Boletus angustatus Sowerby 1799 [LEG; MB157363] 101. Boletus angustisporus T.H. Li & Watling 1999 [LEG; MB450107] 102. Boletus annosus (Fr.) Spreng. 1827 [LEG; MB255588] 103. Boletus annularius Bull. 1787 [LEG; MB255287] 104. Boletus annularius Sowerby 1803 [INV; MB490613] 105. Boletus annularius Bolton 1792 [ILL; MB157358] 106. Boletus annulatus Schaeff. 1774 [LEG; MB171459] 107. Boletus annulatus Vahl 1794 [ILL; MB157451] 108. Boletus annulatus Pers. 1801 [ILL; MB171282] 109. Boletus aokii Hongo 1984 [LEG; MB105949] 110. Boletus appendiculatus Peck 1896 [ILL; MB501806] 111. Boletus appendiculatus Schaeff. 1774 [LEG; MB171640] 112. Boletus appendiculatus subsp. euappendiculatus Maire 1933 [LEG; MB257095] 113. Boletus appendiculatus subsp. pallescens Konrad 1929 [LEG; MB457002] 114. Boletus appendiculatus subsp. pseudoregius Huber 1938 [LEG; MB257096] 115. Boletus appendiculatus subsp. regius Konrad [LEG; MB484196] 116. Boletus applanatus Pers. 1799 [LEG; MB172019] 117. Boletus aquosus Krombh. 1846 [LEG; MB171316] 118. Boletus araucariae Garrido 1988 [LEG; MB313448] 119. Boletus arboreus Sowerby 1803 [LEG; MB160867] 120. Boletus arcuatus Frost [LEG; MB160833] 121. Boletus arcularius Batsch 1783 [LEG; MB161242] 122. Boletus arenarius Fr. 1846 [LEG; MB161034] 123. Boletus areolatus Berk. 1852 [LEG; MB160657] 124. Boletus argentatae Corner 1972 [LEG; MB309632] 125. Boletus armeniacus Quél. 1885 [LEG; MB161237] 126. Boletus armillatus E. Bommer & M. Rousseau 1884 [LEG; MB508780] 127. Boletus aromaticus Pat. 1928 [LEG; MB250790] 128. Boletus aromaticus Velen. 1930 [LEG; MB509250] 129. Boletus artemidorus Lentz 1830 [LEG; MB468243] 130. Boletus asbestinus Scop. 1770 [LEG; MB495502] 131. Boletus ascendens Corner 1972 [LEG; MB309633] 132. Boletus asperipes Corner 1972 [LEG; MB309634] 133. Boletus asprellus Fr. 1838 [LEG; MB160964] 134. Boletus astraeicola (Imazeki) Har. Takah. 1992 [LEG; MB359480] 135. Boletus astratus Q.B. Wang & Y.J. Yao 2004 [LEG; MB488064] 136. Boletus ater Henn. 1901 [LEG; MB160768] 137. Boletus atkinsonianus (Murrill) Sacc. & Trotter 1912 [LEG; MB203672] 138. Boletus atkinsonii Peck 1904 [LEG; MB203845] 139. Boletus atripurpureus Corner 1972 [LEG; MB309635] 140. Boletus atrofuscus Schaeff. 1774 [LEG; MB468244] 141. Boletus atrorufus Pers. 1800 [LEG; MB468245] 142. Boletus atrostipitatus (A.H. Sm., Thiers & Watling) Hlavácek 1991 [LEG; MB127341] 143. Boletus atrostipitatus (A.H. Sm., Thiers & Watling) Hlavácek 1988 [INV; MB135001] 144. Boletus atroviolaceus (Höhn.) W.F. Chiu 1948 [LEG; MB284563] 145. Boletus aurantiacus Bull. 1785 [LEG; MB452868] 146. Boletus aurantiacus Jacobashch 1905 [ILL; MB203494] 147. Boletus aurantiacus f. lebedevae Vassilkov 1970 [LEG; MB347808] 148. Boletus aurantiacus f. percandidus (Vassilkov) Vassilkov 1970 [INV; MB347809] 149. Boletus aurantiacus var. albus Kunc 1982 [INV; MB117085] 150. Boletus aurantiacus var. fulvus Pers. 1825 [LEG; MB498136] 151. Boletus aurantiacus var. rufus (Pers.) Mérat 1821 [LEG; MB352639] 152. Boletus aurantiacus var. rufus J. Blum 1970 [ILL; MB486967] 153. Boletus aurantioruber (E.A. Dick & Snell) Both, Bessette & W.J. Neill 2001 [LEG; MB474035] 154. Boletus aurantiosplendens T.J. Baroni 1998 [LEG; MB444721] 155. Boletus aurantiporus J. Howse 1885 [LEG; MB203745] 156. Boletus aurantitubus Corner 1972 [LEG; MB309636] 157. Boletus aurantius Schaeff. 1774 [LEG; MB255098] 158. Boletus aurantius Pers. 1801 [ILL; MB203483] 159. Boletus aurantius var. leucopodius (Pers.) Pers. 1801 [LEG; MB498137] 160. Boletus aurantius var. rufus Pers. 1801 [LEG; MB498138] 161. Boletus aureissimus (Murrill) Murrill 1938 [LEG; MB257903] 162. Boletus aureomycetinus Pat. & C.F. Baker 1918 [LEG; MB203629] 163. Boletus aureus Schaeff. 1774 [LEG; MB210975] 164. Boletus aureus var. mutabilis St.-Amans 1821 [LEG; MB468246] 165. Boletus auriflammeus Berk. & M.A. Curtis 1872 [LEG; MB211150] 166. Boletus auriformis Bolton 1788 [ILL; MB449982] 167. Boletus auripes Peck 1898 [LEG; MB211237] 168. Boletus auripes var. aureissimus (Murrill) Singer 1945 [LEG; MB345988] 169. Boletus auriporus Peck 1872 [LEG; MB211067] 170. Boletus australis Cooke & Massee 1887 [LEG; MB208574] 171. Boletus austrinus Singer