A NOMENCLATOR OF MEXICAN AND CENTRAL AMERICAN RUBIACEAE 



serrulata P. Beauv., Fl. Oware Benin 1: 39, t. 

 23. 1805. Type: AFRICA: Nigeria, Palisot de 

 Beauvois s.n. (presumably P, n.v.). 



Diodia spicata Miq., Stirp. Surin. Sel. 179, pi. 

 52. 1851. Type: SURINAM: Sylvarum prope 

 Bergendaal, Oct, Focke [1140] (presumably 

 U, n.v.; this is Miquel's lectotype according to 

 Howard, 1989). Dasycephala. 



Diodia teres Walter, Fl. Carol. 87. 1788. Type: 

 U.S.A.: In sabulosis sylvarum a Virginia ad 

 Carolinam, Walter s.n. (location unknown.) 



Diodia teres Walter var. angustata A. Gray, 

 Syn. Fl., ed. 2. 1(2): 35. 1886. Type: 

 MEXICO: Sonora, between, San Pedro and 

 Santa Cruz, Sep 1851, C. A. Wright 1122 

 (Holotype GH, n.v.).— Diodia teres Walter 



Diodia teres Walter subsp. angustata (A. Gray) 

 Steyerm., Acta Bot. Venez. 6: 184. 1971. 

 Diodia teres Walter var. angustata A. Gray, 

 Syn. Fl. ed. 2 1(2): 35. 1886. Type: MEXICO: 

 Sonora, between San Pedro and Santa Cruz, 

 Sep 1851, C. A. Wright 1122 (Holotype GH, 

 n.v.).— Diodia teres Walter 



Diodia teres Walter subsp. prostrata (Sw.) 

 Steyerm., Acta Bot. Venez. 6: 185. 1971. 

 Diodia prostrata Sw., Prodr. Nov. Gen. Sp. 

 PI. 30. 1788. Type: JAMAICA: Loefling 

 (location unknown).— Diodia teres Walter 



Diodia tetracocca (M. Martens & Galeotti) 

 Hemsl., Diag. PI. Nov. 1:32. 1879. 

 Spermacoce ? tetracocca M. Martens & 

 Galeotti, Bull. Acad. Roy. Soc. Bruxelles 11: 

 132. 1844. Type: MEXICO: Michoacan, 

 Santa Maria, cerca Morelia, H. Galeotti 2587 

 (Holotype BR, n.v.; Isotype K, n.v.). 

 — Richardia tricocca (Torr. & A. Gray) 

 Standi, subsp. tetracocca (M. Martens & 

 Galeotti) W. H. Lewis & R. L. Oliv. 



Diodia tricocca Torr. & A. Gray, Fl. N. Amer. 

 2: 30. 1841. Type: U.S.A.: Texas, Drummond 

 U 7 (Holotype GH, n.v.; Isotype G, n.v.). 

 —Richardia tricocca (Torr. & A. Gray) 

 Standi. 



Diodia villosa Sesse & Moc. ex DC, Prodr. 4: 

 562. 1830. Type: MEXICO: Sesse & Mocino 

 sn. (presumably Herb. Dunat & Herb. 



Diphragmus C. Presl, Bot. Bermerk. 80. 1844. 

 Type: Diphragmus scaber C. Presl. [Herein 

 treated as synonym of Staelia Cham. & 

 Schlechtendal.] 



Diphragmus scaber C. Presl, Bot. Bermerk. 81. 

 1844. Type: MEXICO: Habitat in Mexico, 

 precise locality and collector not cited. 

 —Staelia scabra (C. Presl) Standi. 



Dressleriopsis Dwyer, Ann. Missouri Bot. Gard. 

 67: 153. 1980. Type: Dressleriopsis 

 panamensis Dwyer [Herein treated as 

 synonym of Lasianthus Jack.] 



Dressleriopsis panamensis Dwyer, Ann. 

 Missouri Bot. Gard. 67: 154. 1980. Type: 

 PANAMA: Panama, near La Eneida, beyond 

 Cerro Jefe, 25 Jul 1968, R. Dressier 3560 

 (Holotype MO 2267568 (photo PTBG); 

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

 — Lasianthus panamensis (Dwyer) Robbr. 



Duggena Vahl in H. West, Bidr. Beskr. Ste. 

 Croix 269. 1793. Nomen nudum. Type: Not 

 cited. [Herein treated as a synonym of 

 Gonzalagunia Ruiz & Pav.j Note: Standley 

 (Contr. U.S. Natl. Herb. 18: 124-125. 1916) 

 transferred a number of names from Gonzalea 

 and Gonzalagunia to Duggena, citing 

 Duggena Vahl (in West 1793) as the oldest 

 available generic name. However, Howard 

 (1989: 417) notes that when H. West proposed 

 the name, he "gave no generic description for 

 Duggena, referring only to Barleria hirsuta 

 Jacq. [Acanthaceae] while supplying the new 

 name Duggena richardii. " Consequently 

 Duggena Vahl in H. West is an invalid name. 

 The reason Duggena was attributed to Vahl is 

 that West (loc. cit. p. 263) stated the new 

 names given in italics are Vahl's. 



Duggena bracteosa (Donn. Sm.) Standi., Contr. 

 U.S. Natl. Herb. 18: 125. 1916. Gonzalea 

 bracteosa Donn. Sm., Bot. Gaz. 

 (Crawfordsville) 33: 252. 1902. Type: 

 COSTA RICA: Suerre, Llanuras de Santa 

 Clara, 300 m, Apr 1896, J. D. Smith 6583 



