A NOMENCLATOR OF MEXICAN AND CENTRAL AMERICAN RUBIACEAE 



GUATEMALA: Along road from Patin to 

 Escuintla, 1860, S. Hayes s.n. (Holotype GH, 

 n.v.).— Rondeletia secundifiora B. L. Rob. 



Arachnothryx septicidalis (B. L. Rob.) Borhidi, 

 Acta Bot. Acad. Sci. Hung. 28: 69. 1982. 

 Rondeletia septicidalis B. L. Rob., Proc. 

 Amer. Acad. Arts 45: 403. 1910. Type: 

 MEXICO: Chiapas, Chicharras, 3000-6000 

 ft., 6 Feb 1896, E. W. Nelson 3755 (Holotype 

 US 256722 (photos MEXU, PTBG); Isotype 

 GH, n.v.).— Rondeletia septicidalis B. L. 

 Rob. 



Arachnothryx silvicola (L. O. Williams) 

 Borhidi, Acta Bot. Hung. 35: 311. 1989. 

 Rondeletia silvicola L. O. Williams, 

 Phytologia 26: 128. 1973. Type: 

 HONDURAS: Atlantida, Lancetilla Valley, 

 near Tela, 20-600 m, 6 Dec 1927-20 Mar 

 1928, P. C. Standley 56885 (Holotype F 

 581955 (photos MEXU, PTBG)). 

 —Rondeletia silvicola L. O. Williams 



Arachnothryx skutchii (Standi. & Steyerm.) 

 Borhidi, Acta Bot. Hung. 33: 302. 1987. 

 Rondeletia skutchii Standi. & Steyerm., Publ. 

 Field Mus. Nat. Hist., Bot. Ser. 22: 289. 1940. 

 Type: GUATEMALA: Suchitepequez, Finca 

 Moca, 4200 ft., 10 Jan 1935, A. F. Skutch 

 2110 (Holotype F 934088 (photos MEXU, 

 PTBG); Isotypes A, n.v., US (photos MEXU, 

 PTBG)).— Rondeletia skutchii Standi. & 

 Steyerm. 



Arachnothryx stachyoidea (Donn. Sm.) Borhidi, 

 Acta Bot. Acad. Sci. Hung. 28: 69. 1982. 

 Rondeletia stachyoidea Donn. Sm., Bot. Gaz. 

 (Crawfordsville) 42: 298. 1906. Type: 

 GUATEMALA: Alta Verapaz, Semococh, 

 600-900 m, 25 Apr 1905, R. S. Hay s.n. 

 (Holotype US 473726 (photos MEXU, 

 PTBG)).— Rondeletia stachyoidea Donn. 

 Sm. 



Arachnothryx standleyana (A. R. Molina) 

 Borhidi, Acta Bot. Hung. 33: 302. 1987. 

 Rondeletia standleyana A. R. Molina, Ceiba 

 1: 262. 1951. Type: HONDURAS: Morazan, 

 in pine forest above Zambrano, 1200 m, 20 

 Jul 1949, L. O. Williams & A. Molina R. 

 14417 (Holotype US 22 1 60 1 8 ex E AP 

 (photos MEXU, PTBG); Isotype F (photos 



MEXU, PTBG)).— Rondeletia standleyana 

 A. R. Molina 

 Arachnothryx stenostachya (Standi.) Borhidi, 

 Acta Bot. Hung. 33: 303. 1987. Rondeletia 

 stenostachva Standi., Publ. Field Mus. Nat. 

 Hist., Bot. Ser. 18: 1372. 1938. Type: COSTA 

 RICA: La Hondura de San Jose, 1300 m, 15 

 Aug 1933, M. Valerio 769 (Holotype F 

 681816 (photos MEXU, PTBG)). 



Arachnothryx tacanensis (Lundell) Borhidi, 

 Acta Bot. Hung. 33: 303. 1987. Rondeletia 

 tacanensis Lundell, Bull. Torrey Bot. Club 66: 

 603. 1939. Type: MEXICO: Chiapas, Volcan 

 Tacana West, 2800 m, 30 Mar 1939, E 

 Matuda 2928 (Holotype TEX-LL (photos 

 MEXU, PTBG); Isotypes A, n.v., F (photos 

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

 (photos MEXU, PTBG)).— Rondeletia 

 tacanensis Lundell 

 IrachnothtMx thiemei (Donn. Sm.) Borhidi, 

 Acta Bot. Acad. Sci. Hung. 28: 69. 1982. 

 Rondeletia thiemei Donn. Sm., Bot. Gaz. 

 (Crawfordsville) 42: 299. 1906. Type: 

 HONDURAS: Santa Barbara, Rio Chameleon, 

 400 m, 16 Dec 1888, C. Thieme 5276 

 (Holotype US 941403 (photos MEXU, 

 PTBG)).— Rondeletia thiemei Donn. Sm. 



Arachnothryx torresii (Standi.) Borhidi, Acta 

 Bot. Hung. 33: 303. 1987. Rondeletia torresii 

 Standi., J. Wash. Acad. Sci. 18: 163. 1928. 

 Type: COSTA RICA: Alajuela, Viento 

 Fresco, 1600-1900 m, 13 Feb 1926, P. C. 

 Standley & R. Torres R. 47839 (Holotype US 

 1305295 (photos MEXU, PTBG)). 

 —Rondeletia torresii Standi. 

 trm hnothryx tuxtiensis (Lorence & Cast.- 

 Campos) Borhidi, Acta Bot. Hung. 35:311. 

 1989. Rondeletia tuxtiensis Lorence & Cast.- 

 Campos, Biotica 13: 148,y?g. /. 1988. Type: 

 MEXICO: Veracruz, Mun. Mecayapan, 

 Volcan San Martin Pajapan al sur del Ejido La 

 Valentina, 700 m, 8 May 1985, J. I. Cahada 

 11183 (Holotype XAL; Isotypes F, MEXU, 

 MO (photo PTBG)).— Rondeletia tuxtiensis 

 Lorence & Cast.-Campos 



Arachnothryx uxpanapensis (Lorence & Cast.- 

 Campos) Borhidi, Acta Bot. Hung. 35: 311. 



