Linnaea 5: 169. 1830. Type: MEXICO: 

 Veracruz, in sylvis Papantlae, Schiede & 

 Deppe 390 (Holotype presumably HAL, n.v.; 

 Isotype MO (photos MEXU, PTBG)). 

 Oldenlandia. 



Hedyotis mucronata Benth., Bot. Voy. Sulphur 

 19. 1844. Type: MEXICO: Baja California, 

 Magdalena Bay, Barclay s.n. (Holotype BM, 

 n.v.). Houstonia. 



Hedyotis mullerae Fosberg, Lloydia 4: 2%%, fig. 

 3. 1941. Type: MEXICO: Coahuila, Mun. de 

 Cuatro Cienegas, Canon del Agua, Sierra de la 

 Madera, 9 Sep 1939, C. H. Muller & K. 

 Muller 3234 (Holotype US 2133305 (photos 

 MEXU, PTBG); Isotype GH, n.v.). 

 Houstonia. 



Hedyotis mutica Wedd., Chlor. And. 2: 43. 

 1857. Type: COLOMBIA: Cundimarca, Prov. 

 Bogota, Goudots.n. (Lectotype P, n.v.; 

 Isolectotype F, n.v.; designated by Mena V., 

 1986).— Arcytophyllum muticum (Wedd.) 

 Standi. 



Hedyotis nigricans (Lam.) Fosberg, Lloydia 4: 

 287. 1941. Gentiana nigricans Lam., Encycl. 

 2: 645. 1788. Type: MEXICO: Locality and 

 collector unknown (Holotype P-JU, n.v.). 

 Houstonia. 



Hedyotis nigricans (Lam.) Fosberg var. scabra 

 (S. Watson) Fosberg, Lloydia 4: 288. 1941. 

 Houstonia angustifolia Michx. var. scabra S. 

 Watson, Proc. Amer. Acad. Arts 18: 97. 1883. 

 Type: MEXICO: Coahuila, Saltillo, Caracol 

 Mountains, 1-15 Apr 1880, E Palmer 410 

 (Holotype GH, n.v.; Isotype US (photos 

 MEXU, PTBG)).— Hedyotis nigricans 

 (Lam.) Fosberg 



Hedyotis palmeri (A. Gray) W. H. Lewis, 

 Rhodora 63: 222. 1961. Houstonia palmeri A 

 Gray, Proc. Amer. Acad. Arts 17: 202. 1882 

 Type: MEXICO: Coahuila, in the mountains 

 east and south of Saltillo, Feb-Oct 1880, E 

 Palmer 397 (Syntype US 47431 (photos' 

 MEXU, PTBG)); E. Palmer 398 (Syntype US 

 70740 (photos MEXU, PTBG)). 



Hedyotis peninsularis (Brandegee) W. H 

 Lewis, Rhodora 63: 222. 1961. Houstonia 

 peninsularis Brandegee, Zoe 5: 160. 1903 

 Type: MEXICO: Baja California, Cape 



Retion, Sierra de la Trinidad, Nov 1902, T. S. 

 Brandegee s.n. (Holotype UC, n.v.; Isotypes 

 GH, n.v., US (photos MEXU, PTBG)). 



Hedyotis pentandra Schumach. & Thonn., 

 Kongel. Danske Vidensk. Selsk. 

 Naturvidensk., Math. Afh. 3: 71. 1827. Type: 

 GUINEA: Aquapim, "S" [Haaslund Smith?] 

 (location unknown). — Pentodon pentandrus 

 (Schumach. & Thon.) Vatke 



Hedyotis polypremoides (A. Gray) Shinners, 

 Field & Lab. 17: 168. 1949. Houstonia 

 polypremoides A. Gray, Proc. Amer. Acad. 

 Arts 21: 379. 1886. Type: MEXICO: 

 Chihuahua, Santa Eulalia Mountains, 26 Sep 

 1885, C. G. Pringle 356 (Lectotype GH, n.v.; 

 Isolectotypes MO (photos MEXU, PTBG), 

 US (photos MEXU, US)). 



Hedyotis polypremoides A. Gray var. bigelovii 

 Greenman, Proc. Amer. Acad. Arts 32: 291. 

 1897. Type: U.S.A.: Florence Mountains, Jun 

 1852, Bigelow 437 (Holotype GH, n.v.). 

 —Hedyotis polypremoides (A. Gray) 

 Shinners 



Hedyotis pringlei (B. L. Rob.) W. H. Lewis, 

 Rhodora 63: 222. 1961. Oldenlandia pringlei 

 B. L. Rob., Proc. Amer. Acad. Arts 27: 169. 

 1892. Type: MEXICO: San Luis Potosi, 

 alkaline plains, Hacienda de Angostura, 27 

 Jun 1891, C. G. Pringle 3758 (Holotype GH, 

 n.v.; Isotypes F, MO (photo PTBG), US, 2 

 sheets (photos MEXU, PTBG)). 



.^maea Roem. & Schult., Syst. Veg. 

 3: 526. 1818. Type: MEXICO: Without 

 precise locality, A. Bonpland s.n. (Holotype P- 

 Bonpland, n.v.; Isotype B, presumably 

 destroyed (photo MO)).— Hedyotis wrightii 

 (A. Gray) Fosberg 



Hedyotis rubra (Cav.) A. Gray, Mem. Amer. 

 Acad. Arts, n.s. 4: 61. 1849. Houstonia rubra 

 Cav., Icon. 5: 48, /. 474, fig. I. 1799. Type: 

 MEXICO: Hidalgo, Ixmiquilpan, Nee s.n. 

 (presumably MA, n.v.). Oldenlandia. 



Hedyotis serpyllacea Schltdl., Linnaea 9: 599. 

 1834. Type: MEXICO: Mexico, inter La Joya 

 et San Salvador, Jun 1829, Schiede & Deppe 

 265 (Holotype presumably HAL, n.v.; 

 Isotypes B (photo MO), F (photo PTBG), 

 MO). Houstonia. 



