Distimake pavonii (Hallier f.) Petrongari, 2024

F. S., Petrongari, R., Simão-Bianchini, S., Rokni, I. D., Man, L. W., Chatrou & Simões, A. R. G., 2024, Distimake (Convolvulaceae) expanded: five additional species from the Neotropics and Eastern Africa, Rheedea 34 (5), pp. 521-532 : 526

Distimake pavonii (Hallier f.) Petrongari , comb. nov. Operculina pavonii Hallier f., Bot. Jahrb. Syst. 16: 550. 1893. Merremia pavonii (Hallier f.) D.F. Austin & Staples, J. Arnold Arbor. 67: 264. 1986. Type: Nova Hispania [ MEXICO], s.d., [ Sessé & Mociño Expedition] s.n. [herb. Pavón 354] (holo G [G00227280!]; iso MA [MA22345!]).

Merremia macdonaldii S. Valencia & Mart. Gord., syn. nov., Anales Inst. Biol. Univ. Nac. Autón. México, Bot. 66: 108. 1995. Distimake macdonaldii

(S. Valencia & Mart. Gord.) A.R. Simões &

Staples, Bot. J. Linn. Soc. 183: 574. 2017. Type:

MEXICO, Guerrero, Municipio Eduardo Neri, La Yesera, 12.3 km al N de Zumpango del Río,

17°42’30”N 99°30’0”W, M. R. Monroy de la Rosa 545

(holo FCME, n.v.; isot FCME, n.v.; MEXU, n.v.).

Distribution: Mexico, narrow endemic from Estado of Guerrero in a tropical decidual forests.

Notes: During the studies of collection in G herbarium, we were able to analyse the holotype of Operculina pavonii (1893), a taxon considered unplaced by Staples (2017) and recognize that it was the same taxon as Merremia macdonaldii ( Valencia and Martínez, 1995). According to the principle of priority of the International Code of Nomenclature (Turland et al., 2018) the epithet “pavonii ” must be used for this taxon, and here we are combining it to genus Distimake .

Although the label on the holotype and Hallier’s work assigns its collection to Pavón , this collection is from the Sessé & Mocinõ Expedition to Nueva España and was part of the particular collection inherited by the Pavón family and sold by them to Edmond Bossier in the 19th Century ( Rodriguez-Nozal, 1994).