Confronting a morphological nightmare: revision of the Neotropical genus Guatteria (Annonaceae) Author Maas, P. J. M. Naturalis Biodiversity Center, section Botany, P. O. Box 9517, 2300 RA Leiden, The Netherlands. Author Westra, L. Y. T. Naturalis Biodiversity Center, section Botany, P. O. Box 9517, 2300 RA Leiden, The Netherlands. Author Guerrero, S. Arias Naturalis Biodiversity Center, section Botany, P. O. Box 9517, 2300 RA Leiden, The Netherlands. Author Lobão, A. Q. Laboratório de Sistemática e Biogeografia, Setor Botânica, Departamento de Biologia Geral, Universidade Federal Fluminense, Rio de Janeiro, Brazil. Author Scharf, U. Herbarium, Institut für Botanik, Universität Leipzig, Johannisallee 21 - 23, D- 04103 Leipzig, Germany. Author Zamora, N. A. Instituto Nacional de Biodiversidad (INBIO), Apartado Aereo 22 - 3100, Santo Domingo de Heredia, Costa Rica. Author Erkens, R. H. J. Naturalis Biodiversity Center, section Botany, P. O. Box 9517, 2300 RA Leiden, The Netherlands. & Maastricht Science Programme, Maastricht University, Maastricht, The Netherlands. text Blumea 2015 2015-12-22 60 1 1 219 https://doi.org/10.3767/000651915x690341 journal article 313090 10.3767/000651915X690341 a33684c0-277b-404b-b724-f8294e555824 2212-1676 16855128

Table 2 Floral dimensions in cm (n = 10) and principal petal colour during anthesis in four Amazon Guatteria species.

Species	Ped	P	Poll (l × d)	Colour
G. foliosa	1.5–2.3	2.5–3.6	0.7–1.0 × 0.7–0.9	green
G. liesneri	1.5–2.3	2.5–3.5	0.7–1.0 × 0.7–0.9	green
G. megalophylla	0.4–1.1	2.9–3.5	0.9–1.1 × 1.0–1.2	orange
Guatteria sp.	1.5–2.4	2.7–3.7	0.7–0.8 × 0.9–1.1	yellowish green