V NOMENCLATOR OF MEXICAN AND CENTRAL AMERICAN RUBIACEAE 



4: 31. 1940. Type: BRITISH HONDURAS 

 (BELIZE): El Cayo Distr., Vaca, 21 Apr 

 1938, P. H. Gentle 2504 (Holotype F 941520 

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

 TEX-LL ex MICH (photos MEXU, PTBG), 

 US (photos MEXU, PTBG)).— Rondeletia 

 stenosiphon Hemsl. 



Arachnothryx macrocalyx (Standi. & Steyerm.) 

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

 Rondeletia macrocalyx Standi. & Steyerm., 

 Publ. Field Mus. Nat. Hist., Bot. Ser. 23: 254. 

 1947. Type: GUATEMALA: Izabal, Cerro 

 San Gil, 300-900 m, 25 Dec 1941, J. A. 

 Steyermark 41864 (Holotype F 1 134224 

 (photos MEXU, PTBG); Isotype F (photos 

 MEXU, PTBG)).— Rondeletia macrocalyx 

 Standi. & Steyerm. 



Arachnothryx mexiae (Standi.) Borhidi, Acta 

 Bot. Hung. 33: 302. 1987. Rondeletia mexiae 

 Standi., Publ. Field Mus. Nat. Hist., Bot. Ser. 

 22: 55. 1940. Type: MEXICO: Oaxaca, Distr. 

 Choapan, Santa Maria, Montana Santa Maria, 

 1500 m, 1 Apr 1938, Y. Mexia 9261 

 (Holotype F 982856 (photos MEXU, PTBG); 

 Isotypes GH, n.v., MO (photos MEXU, 

 PTBG), US (photos MEXU, PTBG)). 

 — Rondeletia scabra Hemsl. 



Arachnothryx minor (Lundell) Borhidi, Acta 

 Bot. Hung. 35: 310. 1989. Rondeletia minor 

 Lundell, Wnghtia 5: 326. 1976. Type: 

 MEXICO: Veracruz, about 10 miles north of 

 Teziutlan, 6 Jan 1964, D. S. Correll & H. B. 

 Correll 28736 (Holotype TEX-LL (photos 

 MEXU, PTBG); Isotype MEXU). 

 — Rondeletia gracilispica Standi. 



Arachnothryx myriantha (Standi. & Steyerm.) 

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

 Rondeletia myriantha Standi. & Styerm., 

 Publ. Field Mus. Nat. Hist., Bot. Ser. 22: 288. 

 1940. Type: GUATEMALA: Suchitepequez, 

 Finca Moca, 3200 ft., 31 Oct 1934, A. F. 

 Skutch 1569 (Holotype F 813463 (photos 

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

 MEXU, PTBG)).— Rondeletia myriantha 

 Standi. & Steyerm. 



Arachnothryx myriantha (Standi. & Steyerm.) 

 Borhidi var. armentalis (L.O. Williams) 

 Borhidi, Acta Bot. Hung. 35: 310. 1989. 



Rondeletia myriantha Standi. & Steyerm. var. 

 armentalis L. O. Williams, Phytologia 26: 

 127. 1973. Type: GUATEMALA: Quiche, 

 Nebaj, 5600 ft., 22 Nov 1934, A. F. Skutch 

 1 776 (Holotype F 815811 (photos MEXU, 

 PTBG)).^Rondeletia myriantha Standi. & 

 Steyerm. var. armentalis L. O. Williams 



Arachnothryx nebulosa (Standi.) Borhidi, Acta 

 Bot. Hung. 33: 302. 1987. Rondeletia 

 nebulosa Standi., Trop. Woods 37: 32. 1934. 

 Type: HONDURAS: Tegucigalpa, La Aurora 

 Trail, Rosario, San Juancito, 5400 ft., 2 Apr 

 1932, J. B. Edwards P10 (Holotype F 662646 

 (photos MEXU, PTBG); Isotype A, n.v.). 

 —Rondeletia nebulosa Standi. 



Arachnothryx nicaraguensis (Oerst.) Borhidi, 

 Acta Bot. Hung. 35: 310. 1989. Rondeletia 

 nicaraguensis Oerst., Vidensk. Meddel. 

 Dansk Naturhist. Foren. Kjobenhavn 1852: 

 43. 1853. Type: NICARAGUA: Matagalpa, 

 Segovia, in monte Pantasmo, Jan 1848, 

 Oersted s.n. (Holotype C (photos F, MO, US), 

 fragment US). — Rondeletia nicaraguensis 

 Oerst. 



Arachnothryx nitida (Hemsl.) Borhidi, Acta Bot. 

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

 nitida Hemsl., Diag. PI. Nov. Mexic. 29. 

 1879. Type: MEXICO: Chiapas, Fl. rosatres, 

 forets des pins, Chiapas, in fevr., Linden 1660 

 (Lectotype K, here designated (photo PTBG); 

 Isolectotypes G-DEL, n.v., fragment F, P 

 (photos MEXU, PTBG)). Syntype: MEXICO: 

 Chiapas, Ghiesbreght 728 (K (photo PTBG), 

 GH, n.v.). Linden 1660 was designated as 

 lectotype, as it is the better specimen with 

 more duplicates. — Rondeletia nitida Hemsl. 



Arachnothryx oaxacana (Standi.) Borhidi, Acta 

 Bot. Hung. 33: 302. 1987. Rondeletia 

 oaxacana Standi., Field Mus. Nat. Hist., Bot. 

 Ser. 11: 255. 1936. Nomen superfl., based on 

 same type as Rondeletia mexicana (Turcz.) 

 Standi. Type: MEXICO: Oaxaca, without 

 precise locality, 3000 ft., H. Galeotti 2664 

 (Holotype P (photos MEXU, PTBG), 

 fragment F (photos MEXU, PTBG)). 

 — Rondeletia mexicana (Turcz.) Standi. 



Arachnothryx ovandensis (Lundell) Borhidi, 

 Acta Bot. Hung. 35: 310. 1989. Rondeletia 



