Jacquemontia heterotricha O'Donnell, Bol. Soc. Argent. Bot. 3: 88-91. 1950
Argentina: Dep. Candelaria, Loreto, C.J. Schwartz 5556, 3 Mar. 1948, Isotype
Jacquemontia sandwicensis Gray, Proc. Am. Acad. 5: 336. 1862
Hawaiian Islands: Lehua, S. Carlquist 2255, 9 Sept. 1966, Topotype
Jacquinia pringlei Bartlett, Proc. Amer. Acad. 44: 630. 1909
Mexico: Guerrero, Iguala Canyon, C.G. Pringle 10337, 8 Oct. 1906, ? Type - Publication not Available
Jasione carpetana Boiss. & Reut., Voy. Bot. Espagne 2: 745
Spain: Penalava, C. Vicioso, July 1917, Topotype
Jasione montana L. var. latifolia Pugsley, Publication unknown
England: N Devon, Lyton, H.W. Pugsley, 5 July 1930, ? Type Collection Material
Jasione nuriensis Sennen var. eliasii Sennen, Publication unknown
Spain: Cerdagne, Serra del Clots, F. Sennen, 12 Aug. 1928, ? Type Collection Material
Juncus acuminatus Michx. var. legitimus Engelm., Trans. Acad. Sc. St. Louis 2: 463. 1868
U.S.A.: Illinois, Athens, E. Hall 2-16 July 1866; Delaware, Centreville, A. Commons, July-Aug. 1866, Type Collection Material
Juncus acuminatus Michx. var. robustus Engelm., Trans. Acad. Sc. St. Louis 2: 463. 1868
U.S.A.: Missouri, St. Louis, G. Engelmann, 14-27 June 1866, Type Collection Material
Juncus articulatus L. var. hylandri Hämet-Ahti, Publication unknown
Sweden: Gästrikland, Gävle, Limon, J. Ax. Nannfeldt, 4 Aug. 1955, ? Type Collection Material
Juncus asper Engelm., Trans. Acad. Sc. St. Louis 2: 478. 1868
U.S.A.: New Jersey, Griffith's, C.E. Smith fl. 2 Sept., fr. 23 Sept. 1866, Type Collection Material
Juncus badius Suks., Deutsche Bot. Monatss. 19: 92. 1901
U.S.A.: Washington, Klickitat Co., W.N. Suksdorf 6282, 12 July 1908, Topotype
Juncus balticus Deth. var. littoralis Engelm., Trans. Acad. Sci. St. Louis 2: 442. 1868
U.S.A.: Michigan, Detroit, J.M. Bigelow, July-Aug. 1866, Type Collection Material
Juncus balticus Willd. var. stenocarpus Fernald & Buch. f. opulentus Lepage, Nat. can. 81: 256. 1954
Canada: Ontario, Piskwamisk, Lepage & Duman 31895, 10 sept. 1953, Isotype
Juncus balticus Willd. var. stenocarpus Fernald & Buch. f. flavidior Lepage, Nat. can. 81: 257. 1954
Canada: Quebec, Rivière Fort George, E. Lepage 13024, 8 sept. 1950, Isotype
Juncus bufonius L. var. pseudoranarius Rastettler, Publication unknown
France: Haut Rhin, forêt du Nonnenbruch, près de Lutterbach, Rastetter, 12 juillet 1969 (Ex. B. de Retz 13: 5372), ? Type Collection Material
Juncus bufonius L. var. ranarius Farwell, Rep. Mich. Acad. Sc. 19: 247. 1917
U.S.A.: Michigan, Wayne Co., River Rouge, O.A. Farwell 4342, 21 July 1916, Isolectotype
Juncus brachycarpus Engelm., Trans. Acad. Sc. St. Louis 2: 467. 1868
U.S.A.: Illinois, near Athens, E. Hall, 4-20 July 1867, Type Collection Material
Juncus canadensis J. Gay var. brachycephalus Engelm., Trans. Acad. Sc. St. Louis 2: 474. 1868
U.S.A.: Michigan, Detroit, J.M. Bigelow, fl. 11 Aug., fr. 8 Sept. 1866, Type Collection Material
Juncus canadensis J. Gay var. coarctatus Engelm., Trans. Acad. Sc. St. Louis 2: 474. 1868
U.S.A.: Michigan, Sault Ste. Marie, H. Gillman, 29 Aug. 1867, Type Collection Material
Juncus canadensis J. Gay var. longecaudatus Engelm., Trans. Acad. Sc. St. Louis 2: 474. 1868
U.S.A.: South Carolina, Aiken, H.W. Ravenel, fl. 24 Aug., fr. 19 Sept. 1866, Type Collection Material
Juncus canadensis J. Gay var. subcaudatus Engelm., Trans. Acad. Sc. St. Louis 2: 474. 1868
U.S.A.: Delaware, Centreville, A. Commons, fl. 27 July, fr. 30 Aug. 1866, Type Collection Material
Juncus carolinianus Coville, Publication unknown
U.S.A.: Florida, Lake Co., Eustis, G.V. Nash 1044, 20 June 1894, ? Type Collection Material
Juncus chlorocephalus Engelm., Trans. Acad. Sc. St. Louis 2: 485. 1868
U.S.A.: California, Yosemite Valley, H. Bolander June, July 1866, Type Collection Material
Juncus confusus Coville, Proc. Biol. Soc. Wash. 10: 127. 1896
U.S.A.: Idaho, Nez Perces Co., Lake Waha, Heller & Heller 3319, 25 June 1896 and 3446, 17 July 1896, Paratypes
Juncus howellii Hermann, Leafl. West. Bot. 5: 182-183. 1949
U.S.A.: California, Scott Mts., Trinity Co., J.T. Howell 13611, 29 July 1937, Paratype
Juncus lamprocarpus Ehrh. var. palustris Fischer, Publication unknown
Germany: Bavaria, Rambeng, Fischer, July 1916, ? Type Collection Material
Juncus ×lemieuxii Boivin, Nat. can. 94: 525. 1967
Canada: Quebec, compté Vaudreuil-Soulanges, le long du Saint- Laurent face de l'Ile Ronde, G. Lemieux 3681, 9 août 1962, Holotype
Juncus marginatus Rostk. var. biflorus Engelm., Trans. Acad. Sc. St. Louis 2: 455. 1868
U.S.A.: Delaware, near Wilmington, A. Commons, fl. 7 July, fr. 24 July 1866, Isotype
Juncus militaris Bigelow f. bifrons Fernald, Rhod. 24: 166. 1922
Canada: Nova Scotia, Nowland's Lake, Havelock, Fernald & Long (Pl. ex Gray 446), 27 Aug. 1921, Paratype and Topotype
Juncus nodosus L. var. genuinus Engelm., Trans. Acad. Sc. St. Louis 2: 471. 1868
U.S.A.: Michigan, Detroit, J.M. Bigelow, July, Aug. 1866; Pennsylvania, Lancaster, T.C. Porter, 2 July 1866, Type Collection Material
Juncus obtusatus Engelm., Trans. Acad. Sc. St. Louis 2: 495-496. 1868
U.S.A.: California, Big Tree Grove, Mariposa, H. Bolander, 25 July 1866, Isotype
Juncus obtusiflorus Ehrh. f. virescens Fr. Muller, Publication unknown
Europe: Holstein, Fr. Muller, ? Type Collection Material
Juncus orthophyllus Colville var. congestus Suksdorf, Werdenda 1: 6. 1923
U.S.A.: Washington, Klickitat Co., near Fulda, Suksdorf 6301, 19 July 1908, Isotype
Juncus oxymeris Engelm., Trans. Acad. Sc. St. Louis 2: 483. 1868
U.S.A.: California, Mariposa, H. Bolander, July 1866, Type Collection Material
Juncus ×patunsis Lepage, Nat. can. 89: 113-114. 1962
Canada: Quebec, lac Patu, Dutilly & Lepage 39392, 16 août 1961, Isotype
Juncus pervetus Fernald
U.S.A.: Massachusetts, east side of Lewis Bay, West Yarmouth, E.C. Ogden 1735, 24 Oct. 1937, Topotype
Juncus pervetus Fernald, Rhod. 19: 17. 1917
U.S.A.: Massachusetts, Yarmouth, Fernald & Butters (Pl. ex. Gray 183), 14 Oct. 1916, Isotype
Juncus phaeocephalus Engelm. var. glomeratus Engelm., Trans. Acad. Sc. St. Louis 2: 484. 1868
U.S.A.: California, San Francisco, A. Kellogg, June, July 1866, Type Collection Material
Juncus scirpoides Lam. var. macrostemon Engelm. f. brachystylus Engelm., Trans. Acad. Sc. St. Louis 2: 468. 1868
U.S.A.: Pennsylvania, Delaware Co., Tinicum C.E. Smith, fl. 31 Aug., fr. 22 Sept. 1867, Isotype
Juncus scirpoides Lam. var. macrostemon Engelm. f. macrostylus Englem., Trans. Acad. Sc. St. Louis 2: 467-468. 1868
U.S.A.: South Carolina, Aiken, H.W. Ravenel, fl. 2 July fr. 28 July 1866, Isotype
Juncus tenuis Willd. var. williamsii Fernald, Rhod. 3: 60. 1901
U.S.A.: Maine, Van Buren, Robinson & Fernald (Pl. ex. Gray 8), 12 Aug. 1901, Topotype
Juncus torreyi Coville f. longipes Farwell, Papers Mich. Acad. Sci. 1: 91-92. 1923
U.S.A.: Michigan, Wayne Co., Rouge River, O.A. Farwell 4341, 21 July 1916, Isolectotype
Juncus triformis Engelm. var. stylosus Engelm., Trans. Acad. Sc. St. Louis 2: 492. 1868
U.S.A.: California, Yosemite Valley, 4000 ft., H. Bolander, 10 June 1866, Isotype
Juncus vaseyi Engelm., Trans. Acad. Sc. St. Louis 2: 448-449; 492. 1868
U.S.A.: Michigan, Detroit, J.M. Bigelow, fl. 26 June, fr. 27 Aug. 1867, Type Collection Material
Juniperus bermudiana L., Sp. Pl. 1039
Cultivated: Bermuda, Hawkins Island in Hamilton Harbour, W.J. Cody 35449, 6 Apr. 1987, Topotype
Juniperus scopulorum (Sarg.) Rydb. var. columnaris Fassett, Bull. Torrey Bot. Club 72: 482. 1945
U.S.A.: North Dakota, Slope Co., Amidon, O.A. Stevens 509, 16 May 1941, Topotype (2 sheets)
Juncus smithii Engelm., Trans. Acad. Sc. St. Louis 2: 444; 491. 1868
U.S.A.: Pennsylvania, Broad Mountain, Smith & Porter 24 Aug. 1866, Isotype
Juncus xiphioides E. Meyer var. triandrus Engelm., Trans. Acad. Sc. St. Louis 2: 482. 1868
U.S.A.: California, Yosemite Valley, H. Bolander, June 1866, Type Collection Material
Jungia pringlei Greenman, Field Col. Mus. Bot. Ser. 2: 286. 1907
Mexico: Michoscan, near Uruapan, C.G. Pringle 10357, 28 Jan. 1907, ? Type - Publication not Available
Jurinea sarhaddensis Rech. f. & Aellen, Anz. Österr. Akad. Wiss. Math. 89: 263-264. 1951
Iran: Balucistan, inter Zahedan et Khash, K.H. & F. Rechinger 4207, 15 May 1948, Isotype
Justicia rhodoides Leonard, Contrib. U.S. Nat. Herb. 31: 519-521. 1958
Columbia: Dept. de Magdalena, Santa Marta Mountains, 3 to 5 miles north of Bonda, H.H. Smith 1358, 29 Nov. 1898, Isotype