1989. Rondeletia uxpanapensis Lorence & 

 Cast.-Campos, Biotica 13: 150, fig. 2. 1988. 

 Type: MEXICO: Veracruz, Mun. 

 Hidalgotitlan, zona de Uxpanapa, Rio 

 Solosuchil a 5-6 km al ESE de Hermanos 

 Cedillo, 100-200 m, 24 Mar 1982, D. Lorence 

 et al. 3909 (Holotype MEXU (photo PTBG); 

 Isotypes BM, CHAPA, ENCB, MO, NY, 

 PTBG, UC, XAL).— Rondeletia 

 uxpanapensis Lorence & Cast.-Campos 



Arachnothryx villosa (Hemsl.) Borhidi, Acta 

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

 Rondeletia villosa Hemsl., Diag. PI. Nov. 

 Mexic. 27. 1879. Type: MEXICO: Oaxaca, 

 San Pedro Nolasco, etc., Jurgensen 806 

 (Lectotype K, here designated (photo PTBG); 

 Isolectotypes G-DEL, n.v. (fragment F), K 

 (photo PTBG), P (photos MEXU, PTBG)). 

 Syntypes: MEXICO: Oaxaca, Trapiche de 

 Concepcion, F. Liebmann 70 (K (photo 

 PTBG); G-DEL, n.v., fragment F); Tabasco, 

 Linden 145 (K (photo PTBG); probably G- 

 DEL, n.v., fragment F, P (photos MEXU, 

 PTBG)). Jurgensen 806 was designated 

 lectotype, as it is the more complete specimen 

 with three duplicates.— Rondeletia villosa 

 Hemsl. 

 [rachnothryx vulcanicola (Standi. & Steyerm.) 

 Borhidi, Acta Bot. Hung. 33: 303. 1987. 

 Rondeletia vulcanicola Standi. & Steyerm., 

 Publ. Field Mus. Nat. Hist., Bot. Ser. 22: 291 

 1940. Type: GUATEMALA: Quezaltenango, 

 Fmca Pireneos, lower south-facing slopes of 

 Volcan Santa Maria de Jesus and Calahuache, 

 1300-1500 m, 31 Dec 1939,7. A. Steyermark 

 33220 (Holotype F 1041786 (photos MEXU, 

 PTBG)).— Rondeletia secundiflora B. L. 

 Rob. 



Arachnothryx wendtii (Lorence & Cast.- 

 Campos) Borhidi, Acta Bot. Hung. 35: 31 1. 

 1989. Rondeletia wendtii Lorence & Cast.- 

 Campos, Biotica 13: 154, fig. 3. 1988. Type: 

 MEXICO: Oaxaca, Distr. Juchitan, Mun. de 

 Sta. Maria Chimalapa, Arroyo Chocolin, 

 Poblacion de Nicolas Bravo, cerca del Rancho 

 de Augustin Montero, 3-4 km al sur de la 

 Poblacion de Rio Alegre (Veracruz), 150 m 

 2 1 Oct 1983, T. Wendt, A. Montero & I. 



Almaraz 4244 (Holotype MEXU (photo 

 PTBG); Isotypes CHAPA, PTBG). 

 — Rondeletia wendtii Lorence & Cast.- 

 Campos 



Arachnothryx yucatanensis (Lundell) Borhidi, 

 Acta Bot. Hung. 35: 31 1. 1989. Rondeletia 

 yucatanensis Lundell, Wrightia 5: 329. 1976. 

 Type: MEXICO: Yucatan, Chichen Itza, 28 

 Apr 1950, J. T. Baldwin, Jr. J 4230 (Holotype 

 TEX-LL).— Rondeletia leucophylla Kunth 



Arachnothryx zolleriana (Standi. & Steyerm.) 

 Borhidi, Acta Bot. Hung. 33: 303. 1987. 

 Rondeletia zolleriana Standi. & Steyerm., 

 Publ. Field Mus. Nat. Hist., Bot. Ser. 22: 292. 

 1940. Type: GUATEMALA: San Marcos, 

 between Finca El Porvenir and Loma Corona, 

 9 mi NW of El Porvenir, southwest-facing 

 slopes of Volcan Tajumulco, 1300-2000 m, 

 14 Mar 1940, J. A. Steyermark 37738 

 (Holotype F 1039668 (photos MEXU, 

 PTBG)).— Rondeletia brandegeeana 



Arcytophyllum Willd. ex Schult. & Schult. f in 

 Roem. & Schult., Syst. Veg. 3: 5. 1827. Type: 

 Arcytophyllum blaerioides Willd. ex Schult. 

 & Schult. f 



Arcytophyllum lavarum K. Schum. ex Standi., 

 Contr. U.S. Natl. Herb. 18: 127. 1916. Type: 

 PANAMA: Chiriqui, Summit of Chinqui 

 Volcano, 3374 m, 12 Mar 191 1, W. R. Maxon 

 5349 (Holotype US (photos MEXU, PTBG); 

 Isotype B, presumably destroyed (photo 

 MO)). Mallostoma lavarum Donn. Sm., 

 Enum. PI. Guatem. 5: 36. 1899, nom. nud. 

 (based on Arcytophyllum lavarum K. Schum., 



Arcytophyllum muticum (Wedd.) Standi., J. 

 Wash. Acad. Sci. 18: 163. 1928. Hedyotis 

 mutica Wedd., Chloris And. 2: 43, pi 50. 

 1857. Type: COLOMBIA: "Cundinamarca, 

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

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

 1986). 



Arcytophyllum recurvatum Suess., Bot. Jahrb. 

 Syst. 72: 286. 1942. Type: COSTA RICA: 

 Cartago, "Chirripo Grande, 3450 m," K. 

 Suessenguth 1313 (Holotype B, presumably 



