LACHENAUD, O., BRUNIERA, C.P. and ZAPPI, D.C. 2022. The <em>Rudgea hostmanniana</em> complex (Rubiaceae) in the Guiana Shield region. Phytotaxa. 561, 3 (Sep. 2022), 219–242. DOI:https://doi.org/10.11646/phytotaxa.561.3.1.