Baccharis densifolia Rusby, Descriptions of Three Hundred New Species of South American Plants, p. 149. 1920
Columbia: Santa Marta, H.H. Smith 1997, (1898-1901), ? Isotype
Baltimora ovata Rusby, Descriptions of Three Hundred New Species of south American Plants, p. 151. 1920
Columbia: Santa Marta, H.H. Smith 536, (1898-1901), ? Isotype
Baptisia arachnifera Duncan, Rhod. 46: 29. 1944
U.S.A.: Georgia, Wayne Co., 10 mi. S of Jessup, W.H. Duncan 5993 (Pl. Ex. Gray. 1359), 4 July 1943, Isotype
Barroetea subuligera Gray var. litisquama Greenm., Proc. Am. Acad. 40: 35. 1904
Mexico: Jalisco, Etzatlan, C.G. Pringle 8773, 27 Oct. 1903, Isotype
Bartonia multiflora Nutt., Pl. Gamb. in J. Acad. Philad., n.s., 1: 180. 1847
U.S.A.: New Mexico, Santa Fe Co., Santa Fe, A.A. & E.G. Heller 3778, 28 May 1897, Topotype
Bassovia ferruginea Rusby, Descriptions of Three Hundred New Species of South American Plants, pp. 117-118. 1920
Columbia: Santa Marta, H.H. Smith 1182, (1898-1901), ? Isotype
Bassovia stellata Greenman, Proc. Amer. Acad. 41(9): 246. 1905
Mexico: Hidalgo, Barranca below Honey Station, C.G. Pringle 15611, 17 June 1909, Ex-Holotype
Batrachium peltatum Schrank f. tenella O. Gelert, Publication unknown
Germany: Fredericia, O. Gelert, 14 June 1886, ? Type Collection Material
Bealia mexicana Scribn. ex Vasey, True Grasses 103, 104. 1890
Mexico: Chihuahu, C.G. Pringle 819, 7 Oct. 1886, Isotype
Begonia bicolor Watson, Proc. Amer. Acad. 22: 414. 1887
Mexico: Jalisco, near Guadalajara, C.G. Pringle 11451, 6 Oct. 1903, Topotype
Begonia chlorolepis L.B. Smith, Caldasia 4: 16. 1946
Columbia: Santa Marta, H.H. Smith 1268, 1898-1901, ? Isotype
Begonia heterodonta Rusby, Descriptions of Three Hundred New Species of South American Plants, pp. 66-67. 1920
Columbia: Santa Marta, H.H. Smith 1264, (1898-1901), ? Isotype
Begonia santae-martae Irmscher, Bot. Jahrb. Syst. 74: 618. 1949
Columbia: Santa Marta, H.H. Smith 1262, 1898-1901, ? Isotype
Begonia subcostata Rusby, Descriptions of Three Hundred New Species of South American Plants, pp. 67-68. 1920
Columbia: Santa Marta, H.H. Smith 1265, (1898-1901), ? Isotype
Bellis azorica Hochst. in Seubert, Flora Azorica 31. 1844
AZORES: Insula Pico, Madalena, Dansereau et al. 680, 15 June 1964, Topotype
Bellis perennis L. var. aspromontana Bég. & Mezz., Fl. Italica Ex. Ser. 3, 2965
Itlay: Calabria, Prov. di Reggio C., C. Mezzatesta, Apr. 1924, Isotype
Bellis perennis L. var. peloritana Bég. & Mezz., Fl. Italica Ex. Ser. 3, 2964
Itlay: Sicily, Prov. di Messina, Peloritani, Béguinot & Mezzatesta, 3 May 1924, Isotype
Beloere cistiflora Shuttl. in Gray Pl. Wright,, 1: 21. 1850
U.S.A.: Florida, Key West, Rugel 94, Feb. 1846, Isotype
Beloperone sanmartensis Rusby, Descriptions of Three hundred New Species of South American Plants p. 128. 1902
Columbia: Santa Marta, H.H. Smith 96, 1898-1901, ? Isotype
Berberis nervosa Pursh var. mendocinensis Roof, Four Seasons 3(1): 8. 1969
U.S.A.: California, Mendocino Co., Hardy Creek, J.B. Roof, 12 Sept. 1969, Isotype
Berberis ×ottawensis Schneid. in Rehd. Man. Cult. Trees & Shrubs 246. 1927
Cultivated: Dominion Arboretum and Botanic Garden, Ottawa, Ontario, Canada (Acc. No. 00-198-2), K. Mills 14, 30 May 1951 (fl.), J.M. Gillett, 14 Sept. 1939 (fr.), Type Collection Material
Betonica velebitica A. Kerner, Fl. ex. Austro-Hungarica 939
Jugoslavia: Croatia, ad pedem montis Bandani prope Ostarje, Pichler, Type Collection Material?
Betula andrewsii A. Nels., Bot. Gaz. 43: 279-280. 1907
U.S.A.: Colorado, Boulder Co., Green Mt., Weber & Hulten, 8 July, 1959, Topotype (Type tree)
Betula ×arbuscula Dugle
Canada: Alberta, Jasper National Park, Pocahontas, J.R. Dugle 2240, 28 Aug. 1962, Type Tree; on road to Edith Cavell, between 1 and 2 miles from intersection, Jasper, J.R. Dugle 1743, 5 Sept. 1961, Paratype
Betula ×arbuscula Dugle, Can Jour. Bot. 44: 983. 1966
Canada: Alberta, Jasper National Park, Pocahontas, J.R. Dugle 1734, 5 Sept. 1962, Isotype
Betula aschersoniana Hayek, Flora von Steiermark 1: 105. 1908
Austria: Stiria, Hofmoor prope Admont, Glatz & Strobl., (Dörfler, Herb. Norm. 5527), Topotype
Betula borealis Spach, Ann. Sci. Nat. ser. 2, 15: 196. 1841
Canada: Newfoundland, La Pylaie, Fragment of Holotype
Betula caerulea Blanchard nm. Cunninghamii Boivin
Canada: Nova Scotia, Halifax County, Armdale, A.E. Roland 39,006, 10 Oct. 1939, Paratype; Lunenburg County, Chester, south end of Stanford's Lake, M.N. Zinck 1180, 2 Sept. 1941, Paratype
Betula caerulea Blanchard nm. cunninghamii Boivin, Nat. can. 94: 230. 1967
Canada: Nova Scotia, Inverness Co., Frizzelton, Cunningham & Loucks 80, 5 Sept. 1961, Holotype
Betula x dutillyi Lepage
Canada: Quebec, Gaspé County, Mont Lyall, G.C.Riley s.n., 8 Aug. 1935, Paratype, Gaspé-Nord County, Mont Jacques-Cartier, Cinq-Mars et al., 5 juillet 1961, Paratype; Gaspé-Nord County, Petit Mont Ste-Anne, Parc de la Gaspésie, G. Lemieux 14,473, 31 July 1968, Paratype; Pic Bignell, monts Otish, 52º20';N 70º35'W J. Rousseau 533, 11 août 1949, Paratype; Rupert House, baie James, Dutilly & Lepage 14,051, 3 July 1945, Paratype
Betula x dutillyi Lepage, Nat. Can. 103(3): 225. 1979
Canada: Newfoundland, Humber District, east of Gaff Topsail, E. Rouleau 733, 11-12 July 1950, Paratype
Betula ×eastwoodae Sarg., Bot. Gaz. 67: 216. 1919
Canada: Yukon Territory, Dawson, A. Eastwood 88, 271-88 and 89, 22 May and 17 June 1914, Type Collection Material
Betula ×neoborealis Lepage, Nat. can. 84: 56. 1957
Canada: Quebec, Rupert House, Lepage & Duman 33667, 22 Aug. 1955, Topotype
Betula papyrifera Marsh. var. cordifolia (Regel) Fern. f. nana Boivin, Nat. can. 94(2): 231. 1967
Canada: Quebec, Co. Matane, Mont Blanc, B. Boivin 446, 5 août 1938, Holotype
Betula pubescens Ehrh. subvar. nudata f. ullepitschiana C.S., Publication unknown
Hungary: Tatra, Ullepitsch, (Fl. Exs. Austr.-Hung. 3877), ? Type Collection Material
Betula ×raymondii Lepage, Nat. can. 84: 57-58. 1957
Canada: Quebec, Lacolle Co., St-Jean, Raymond & Cinq-Mars, 2 Sept. 1951, Isotype
Betula ×sargentii Dugle
Canada: Yukon, Watson Lake, 60º07';N 128º48'W J.M Gillett 3565, 4 July 1949, Paratype; Ontario, between Thunder Bay and Provincial Paper Mills, Current River, Port Arthur, C.E. Garton 2539, 24 May 1955, Paratype; Moose Factory, 51º16'N 80º36'W D.B.O. Savile 108, 11 June 1949, Paratype; Orient Bay, 4 miles west of MacDiarmid, C.E. Garton 7998, 4 Aug. 1960, Paratype; south end of Grassy Lake, 3 miles south of Cooke Point, Lake Nipegon, C. E. Garton 7716, 22 July 1960, Paratype; Manitoba, Knife Lake, 120 miles southwest of Churchill, J.M. Gillett 2284, 28 July 1948, Paratype; Gillam, W.Krivda G-75, 23 June 1955, Paratype; Churchill, A.H.R. Buller s.n., 13 Aug. 1939, Paratype; Churchill, W.N. Denike A-12, 1938, Paratype: Beulah, A.J. Dennis s.n., 28 July ___, Paratype; Saskatchewan, southeast of Grove Lake, 59º27'N 104º20'W G.W. Scotter 436, 18 June 1960, Paratype; Alberta, Paradise Creek, Banff, J.R. Dugle 2013, 2014, 24 June 1962, Paratype; Fire Road, Banff, J.R. Dugle 2057-2062, 25 June 1962, ParatypeS; J.R. Dugle 2265, 2267, 31 Sept. 1962, ParatypeS; Livingston Falls, campsite, J.R. Dugle 2268, 31 Sept. 1962, Paratype; British Columbia, McLatchie Lake, Flathead, Bell & Davidson 938, 17 Aug. 1957, Paratype; Alaska Hwy., Beaton River crossing, Taylor et al. 45, 1956, Paratype; Bennett, D.A. Mitchell 167, 13 July 1949, Paratype; Paul Creek, G. Beke s.n., 11 Sept. 1960, Paratype
Betula × sargentii Dugle, Can. Jour. Bot. 44: 961. 1966
Canada: Alberta, Obed, J.R. Dugle 1723, 5 Sept. 1961, Isotype
Betula transcaucasica V. Vassil., Pl. ex. C.C.C.P. 4970.
U.S.S.R.: Tureia, prov. Kars, Karaklis, Ssarykamysch, D. Litvinov, 24 June 1949, Isotype
Betula × uliginosa Dugle
Canada: Alberta, Ponoka Bog, 72 miles south of Edmonton on highway 2, J.R. Dugle 2159, 2161, 2171, 2174, 2176, 2212, 2217, 2218, 2313, 2314, 2315, ParatypeS + TopotypeS
Betula × uliginosa Dugle, Can. Jour. Bot. 44: 951. 1966
Canada: Alberta, Ponoka bog, 72 mi. S of Edmonton, J.R. Dugle 2178, 31 July 1962, Paratype and Topotype
Betula x ungavensis Lepage, Nat. Can. 103(3): 226. 1976
Canada: Quebec, Gaspé Co., Mt. Lyall, G.C. Riley s.n., 18 Aug. 1936, Paratype
Betula × winteri Dugle
Canada: Manitoba, West Hawk Lake, M.G. Dudley s.n., 9 July 1939, Paratype; Saskatchewan, 5 miles west of Wallwort, A.J. Breitung 657, 15 July 1940, Paratype; Moose Mountain Park, Kenosee Lake, H.A. Senn 2534, 26 July 1946, Paratype; Qu'Appelle Valley, B. de Vries 880, 14 Aug. 1960, Paratype; Alberta, North Saskatchewan River bluffs near Edmonton, J.R. Dugle 1374, 21 June 1961, Paratype; Edmonton, J.R. Dugle 1386, 26 July 1961, Paratype; White Mud Park, Edmonton, J.R. Dugle 2126, 16 July 1962, Paratype; Edmonton, J.R. Dugle 2070, 2072, 2074, 2075, July 9, 1962, ParatypeS; Elk Island National Park, J.R. Dugle 2083, 2084, 2085, 2086, 2087, 2089, 2108, 2110, 2111, 2112, July 1962, ParatypeS
Betula × winteri Dugle, Can. Jour. Bot. 44: 986. 1966
Canada: Alberta, Elk Island National Park, J.R. Dugle 2121, 11 July 1962, Paratype
Bidens amplectens Sherff, Bot. Gaz. 70: 99-100. 1920
Hawaiian Islands: Oahu, Degener et al. 19,585, 12 May 1949, Topotype
Bidens asymetrica (Lévl.) Sherff var. subocculata Degener & Sherff, Amer. J. Bot. 31: 279. 1944
Hawaiian Islands: Kauai, O. Degener, 25 Dec. 1939, ? Isotype
Bidens eatonii Fern. var. kennebecensis Fern., Rhod. 19: 76. 1914
U.S.A.: Maine, Bowdoinham, Fernald & Long (Pl. ex. Gray 297), 19 Sept. 1916, Paratype
Bidens × dimidiata Degener & Sherff, Amer. J. Bot. 38: 66-67. 1951
Hawaiian Islands: Kauai, O. Degener 21501, 3 Jan. 1952, Topotype
Bidens fulvescens Sherff, Bot. Gaz. 86: 435. 1928
Hawaiian Islands: Oahu, O. Degener 18,321, 12 May 1936, Topotype
Bidens heterodoxa (Fern.) Fern. & St. John var. monardaefolia Fern., Rhod. 19: 259. 1917
U.S.A.: Connecticut, Lake Pocotopaug, Weatherby & Weatherby (Pl. ex. Gray 498), 27 Sept. 1931, Topotype
Bidens magnidisca Degener & Sherff, Bot. Gaz. 93: 216-217. 1932
Hawaiian Islands: Oahu, Degener 20872, 22 June 1950, Topotype
Bidens mauiensis Sherff var. cuneatoides Sherff, Bot. Gaz. 70: 109. 1920
Hawaiian Islands: Maui, Wailuku, O. Degener 19575, 14 May 1949, Topotype
Bidens melanocarpus Wiegand f. simplex Lehmann, Publication unknown
Germany: Saxonia, prope Leipzig, A. Lehmann, (Dörfler, Herb. Norm. 5093), Oct. 1906, ? Type Collection Material
Bidens melanocarpus Wiegand f. simplex Lehmann sf. gracilis Lehmann, Publication unknown
Germany: Leipzig, bei Bölltz-Ehrenberg, A. Lehmann, Sept. 1907, ? Type Collection Material
Bidens micranthoides Sherff, Bot. Gaz. 70: 100. 1920
Hawaiian Islands: Kauai, Degener & Cadenhead 27,187, 18 Nov. 1960, Topotype
Bidens perversa Degener & Sherff, Amer. J. Bot. 31: 279. 1944
Hawaiian Islands: Maui, O. Degener 19577, 15 May 1949, Topotype
Bidens pringlei Greenm., Proc. Amer. Acad. 41: 263. 1905
Mexico: Michoacan, Uruapan, C.G. Pringle 15032, 27 Nov. 1907, Topotype
Bidens rosea Schz. Bip. var. aequisquama Fernald, Proc. Amer. Acad. 43: 68. 1907
Mexico: Michoacan, near Uruapan, C.G. Pringle 10109, 1 Nov. 1905, Isotype
Bidens sandvicensis Less., Linnaea 6: 508. 1831
Hawaiian Islands: Omoe, Kipu, Kanai, T.H., Degener & Ordonez 12,606, 22 Dec. 1939, Topotype
Bidens sarmentosa Greenm., Proc. Amer. Acad. 41: 264-265. 1905
Mexico: Federal District, Ajusco Station, C.G. Pringle 10130, 5 Dec. 1905, Topotype
Bidens torta Sherff, Bot. Gaz. 70: 105. 1920
Hawaiian Islands: Oahu, Degener & Carroll 20,412, 3 Jan. 1950, Topotype
Bidens tripartita L. var. pumila Roth f. pygmaea A. Lehmann, Publication unknown
Germany: Leipzig bei Bölltz-Ehrenberg, A. Lehmann, Sept. 1907, ? Type Collection Material
Biscutella laevigata L. ssp. subaphylla Mach.-Laur., Publication unknown
Germany: Strasbourg, Leras, 5 juin 1858, ? Type Collection Material
Bivinia jalberti Tul., Ann. Sc. Nat. Ser. IV 8: 78. 1857
Madagascar: M. Pervillé 382. 1841, Paratype
Blechum brownei Juss. f. puberulum Leonard, Contr. U.S. Nat. Herb. 31: 60-62. 1958
Columbia: vicinity of Santa Marta, H.H. Smith 81, 1898-1901, Paratype
Blennosperma bakeri Heiser, Madrono 9: 103. 1947
U.S.A.: California, Sonoma Co., Sonoma, M.S. Baker 11307, 2 Apr. 1946, Isotype
Blennosperma nanum (Hook.) Blake var. robustum J.T. Howell, Leafl. WeSt. Bot. 5: 108. 1948
U.S.A.: California, Marin Co., Point Reyes Peninsula, above McClure Beach, L.S. Rose 64010, 19 Mar. 1964, Topotype
Boehmeria spicata Thunb. f. caudata Satake, Publication unknown
Japan: Tokyo Pref., Oizumi, Nerima-ku, T. Makino, 16 Aug. 1939, ? Type Collection Material
Boerhavia annulata Cov., Contrib. U.S. Nat. Herb. 4: 177. 1895
U.S.A.: California, Inyo Co., Furnace Creek Canyon, R.H. Peebles 267, 6-11, 1930, Topotype
Boisduvalia parviflora Heller, Bull. Torrey Bot. Cl. 25: 199-200. 1898
U.S.A.: Idaho, Nez Perces Co., Lake Wawa, A.A. & E.G. Heller 3411, 10 July 1896, Isotype
Bolophyta alpina Nutt., Trans. Amer. Phil. Soc. n.s. 7: 348. 1841
U.S.A.: Wyoming, 4 mi. W of Alcova, C.L. Porter 4425, 9 May, 1948, Topotype
Bonamia tricantha Hallier var. oblonga Ooststr., Recueil Trav. Bot. Néeri. 33: 213. 1936
Columbia: Santa Marta, H.H. Smith 1871, 1898-1901, ? Isotype
Borreria herbert-smithii Rusby, Descriptions of Three Hundred New Species of South American Plants, pp. 144-145. 1920
Columbia: Santa Marta, H.H. Smith 321, (1898-1901), ? Isotype
Borya distichophylla Nutt., Gen. N. Am. Pl. 2: 232. 1818
U.S.A.: Tennessee, near Painted Rock, Rugel, Apr. 1842, Topotype
Botrychium campestre Wagner & Farrar, Amer. Fern J. 76: 39. 1986
Canada: Saskatchewan, Beechy, Ledingham & Hudson 992, 29 June 1952, Paratype
Botrychium minganense Victorin, Proc. & Trans. Royal Society Canada, Ser. 3, 21: 331. 1927
Canada: Quebec, archipel de Mingan, Ile a la Proie, Victorin & Rolland 22016, 22 juillet 1925, Paratype
Botrychium pedunculosum Wagner
Canada: Saskatchewan, Cypress Hills, J.H. Hudson 1926, 2 Sept. 1956, Paratype
Botrychium pendulosum Wagner, Amer. Fern J. 76: 43. 1986
Canada: British Columbia, 19 miles east of Quesnel on road to Barkerville, just east of Cottonwood, Calder et al. 14152, 7 Aug. 1954, Paratype
Botrychium pseudopinnatum W.A. Wagner, Univ. Mich. Herb. 17: 322. 1990
Canada: Ontario, near Angler, ca. 3 miles northwest of Marathon, E.G. Voss 10430, 31 July 1961, ? Type - Publication not available
Botrychium rugulosum W.H. Wagner, Contr. Univ. Mich. Herb. 15: 315-324. 1982
Canada: Ontario, Georgian Bay Islands National Park, Beausoleil Island, G.M. Stirrett 1212, 30 Aug. 1960, Paratype
Botrychium rugulosum Wagner, Contr. Univ. Mich. Herb. 15: 315. 1982
U.S.A.: Michigan, Mills Twp., south side of Baker Rd., Wagner et al. 9099, 9 Sept. 1959, Isotype
Botrychium virginianum (L.) Sw. var. europaeum Angstrom f. heterodoxum Cody, Amer. Fern. Journ. 51: 36. 1961
Canada: Saskatchewan, McKague, A.J. Breitung, 25 June 1935, Holotype
Botrychium virginianum (L.) Sw. var. virginianum f. anomalum Cody, Amer. Fern. Journ. 51: 36. 1961
Canada: Ontario, Renfrew Co., 2 1/2 miles west of Braeside, Cody & Dore 11133, 19 June 1959, Holotype
Bouteloua hirsuta Lag. var. palmeri Vasey in Beal, Grasses of North America 2: 417. 1896
Mexico: E. Palmer, 1896, Isotype
Bouvardia alexandrae Carter, Madrono 13: 142. 1955
Mexico: Baja California, Cape Region, Arroyo del Salto, R.V. Moran 7136, 23 Jan. 1959, Topotype
Brachiaria ophryodes Chase, Contr. U.S. Nat. Herb. 22: 37-38. 1920
Mexico: State of Nuevo Leon, Monterrey, A.S. Hitchcock, (Amer. Gr. Nat. Herb. 401), 6 June 1910, Isotype
Brachistrus fendleri Gray, Mem. Amer. Acad. ser. 2. 4: 5. 1849.
U.S.A.: New Mexico, 4 miles east of Santa Fe, A.A. & E.G. Heller 3607, 29 May 1897, Topotype
Brachistrus pringlei Watson, Proc. Amer. Acad. 25: 159. 1890
Mexico: Nuevo Leon, Monterey, C.G. Pringle 15620, 29 May 1908, Topotype
Brachyeletrum erectum (Schreb.) Beauv. var. septentrionale Babel, Rhod. 45: 260. 1943
U.S.A.: New Hampshire, Durham, Babel 46, 19 June 1942, Isotype
Brassica rapa L. var. amplexicaulis Tanaka & Ono subvar. ohsakana (Makino) Kitam., Publication unknown
Japan: Hyogo Pref., Nishinomiya City, T. Makino 44107, 1932, ? Type Collection Material
Brassica rapa L. var. mana (Makino) Kitam., Publication unknown
Japan: Tokyo Pref., Ukima, Kita-ku, T. Makino 44132, 1 May 1932, ? Type Collection Material
Brassica rapa L. var. nippo-oleifera (Makino) Kitam., Publication unknown
Japan: Chiba Pref., Haniya, Sanbu-cho, Sanbu-gun, T. Makino 44148, 14 Apr. 1935, ? Type Collection Material
Braya bartlettiana Jordal var. vestita Hultén, Arkiv för Botanik Ser 2 7(1): 66; Madrono 19: 223. 1968
U.S.A.: Alaska, Northern Coastal Plain, Mead R. Village, E. Hultén, 5-8 Aug. 1960, Isotype
Braya humilis (C.A. Mey.) Robins. ssp. ventosa Rollins, Rhod. 55: 114. 1953
U.S.A.: Colorado, Summit Co., North Star Mt., Hulten & Weber, 10 July 1959, Topotype
Braya novae-angliae (Rydb.) Th. Sor. var. interior Böcher, Med. Gr. 124, 7: 20. 1956
Canada: Manitoba, Fort Churchill, J.M. Gillett 2242, 27 July 1948, Isotype
Breweria angustifolia Nash, Bull. Torrey Bot. Club 22: 155. 1895
U.S.A.: Florida, Lake Co., Eustis, G.V. Nash 971, 1-15 June 1894, ? Isotype
Breweria villosa Nash, Bull. Torrey Bot. Club 22: 154-155. 1895
U.S.A.: Florida, Lake Co., Eustis, G.V. Nash 1508a, 1-15 Aug. 1894, ? Isotype
Bromus ciliatus L., Taxon 25: 613. 1976
U.S.A.: New York, Huntington Wildlife Forest Station, Newcomb, H.F. Heady 768, 23 July 1939, Neotype
Bromus ciliatus L. var. laeviglumis Scribn., U.S.D.A. AgroSt. Bull. 23: 32. 1900
Canada: Ontario, Galt, W. Herriott, 6 July [1898?], Type Collection Material
Bromus pumpellianus Scribn. ssp. dicksonii Mitchell & Wilton
U.S.A.: Alaska, west shore of Yukon River opposite northern end of Nine Mile Island, 64°40'N 158°59'W Mitchell & Wilton 1480, 28 July 1964, Paratype; north shore of Yukon River opposite Melozi Island, 64°46'N 155°36'W Mitchell & Wilton 1500, 28 July 1964, Paratype
Bromus pumpellianus Scribn. ssp. dicksonii Mitchell & Wilson Brittonia 18: 163. 1966
U.S.A.: Alaska, 17 mi. W of Galena, Mitchell & Wilton 1426, 27 July 1964, Paratype and Topotype
Bryonia sandwicensis Endl., Ann. Wien Mus. 1: 184. 1836
Hawaiian Islands: Oahu, rim of Tantalus Crater, Degener et al. 3308, 7 Feb. 1928, Topotype
Brysomina crassifolia (L.) H.B.K. var. lanceolata Cuatrec., Webbia 13: 611. 1958
Columbia: Santa Marta, H.H. Smith 316, 1898-1901, ? Isotype
Brysonima herbert-smithii Rusby, Descriptions of Three Hundred New Species of South American Plants, p. 37. 1920
Columbia: Las Nubes road, H.H. Smith 1502, ? Isotype
Buckleya lanceolata Miq. f. subtriflora Hiyama, Publication unknown
Japan: Nabara-kyo, Kabe-machi, Asa-gun, Prob. Bingo, Hondo, T. Makino, 1928, Isotype
Buddleia cooperi W.W. Sm., Notes Roy. Bot. Gard. Edinburgh 10: 14. 1917
Bhutan: Rudong La, Pumthang, R.E. Cooper 4154, July 1915, Isotype
Buddleia stenostachya Rehd. & Wils ×B. davidii Franch., Amer. J. Bot. 36: 515. 1949
Cultivated: Dominion Arboretum and Botanic Garden, Canada Agriculture, Ottawa, Ont., R. Moore XB3, 18 Aug. 1948, Holotype
Buddleja subherbacea Keenan, Notes Roy. Bot. Gard. Edinburgh 29: 341. 1969
Cultivated: Royal Botanical Garden, Edinburgh, raised from seed of Kingdom-Ward 8559 (Assam, Delei Valley, 28º15'N 96º35'E), J. Keenan C11, July 1953, Isotype
Buddleja whiteana R.J. Moore, Am. J. Bot. 36: 513. 1949
Cultivated: Blandy Experimental Farm, Boyce, Va., U.S.A., O.E. White XB1, 27 Feb. 1948, Holotype
Bulbocastarum linnaei Schur. var. baldense Rigo, Publication unknown
Europe: M. Baldo, J. Rigo, June 1911, ? Type Collection Material
Bulbostylis amambayensis Barros, Darwiniana 6: 122. 1942
Paraguay: Cerro Cora, Sierra de Amambay, T. Rojas 6780, Mar. 1934, Isotype
Bumelia peninsularis Brandegee, Zoe 5: 107. 1901
Mexico: San Luis Potosi, Las Palmas, C.G. Pringle 6984, 7 Mar. 1899, ? Isotype
Bunchosia columbica Ndz., Fedde Repert. 26: 346. 1929
Columbia: Santa Marta, H.H. Smith 1506, 1898-1901, Topotype
Bunium macua Boiss., Elench. 44. 1896
Spain: Baetica, cerro de San Cristobal circa urbem Grazalema, Font i Quer et Gros, 15 July 1925, Topotype
Buphthalmum salicifolium L. var. neglectum Br.-Bl., Fl. Raetica Ex. 886
Switzerland: Häufig auf mageren Bahnböschungen, Unterlag Kalkschutt, F. Nigg, 28 July 1925, Isotype
Bupleurum aciphyllum Webb, Phyt. Canar. 2: 154.
Canary Islands: Nivaria, Guimar, Bico Badajoz, E.R. Sventenius, 7 June 1944 (Fl. Sel. Can. 153), Topotype
Bupleurum dianthifolium Guss., Suppl. Fl. Sic. Prod. 1: 71. 1832
Itlay: Isole Egadi, insulae "Marettimo", Cl. Bicknell (Dörfler, Herb. Norm. 3423), May, June 1898, Topotype
Bupleurum falcatum L. f. genuinum Briq. sf. stepposum Podp., Fl. Ex. Reip. Boh. Slov. 1079
Czechoslovakia: Moravia Orient.: Uhersky Ostroh inter pp. Blatnicka et Suchov, J. Podpera, 3 July 1929, Isotype
Bursera graveolens Tr. & Pl. var. villosula Cuatrec, Webbia 12: 431. 1957
Columbia: Santa Marta, H.H. Smith 2396, 1898-1901, ? Isotype
Buxus balearica Lam, Encycl. 1: 511. 1785
Balearic Islands: T.M. Escirca, L.F. Ferguson 3050, 18 Apr. 1971, Topotype
Buxus microphylla Sieb. & Zucc. var. japonica Rehder & Wilson f. pilosa Hiyama, Publication unknown
Japan: Wakayama Pref., Tanabe, Tanabe City, T. Makino, 1924, ? Type Collection Material
Bystropogon canariensis L'Hérit., Sert. Angel. 20. 1788
Canary Islands: Nivaria, Valle Orotava, E.R. Sventenius 67, 15 May 1954, Topotype
Bystropogon origanifolius L'Herit., Sert. Angl. 20. 1788
Canary Islands: Nivaria, Garachico, El Guincho, E.R. Sventenius 68, 25 May 1944, Topotype
Bystropogon plumosus L'Herit., Sert. Angl. 20 t. 22. 1788
Canary Islands: Nivaria, Puerto Cruz, Montaneta de la Horca, E.R. Sventenius 69, 9 June 1947, Topotype