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 4 Comparison of Guatteria schomburgkiana and closely resembling species.

Guatteria:	citriodora	duckeana	schomburgkiana	stipitata
Bol = Bolivia; Braz = Brazil; Col = Colombia; 3Gui = The three Guianas (Guyana, Suriname, French Guiana); Peru = idem; Ven = Venezuela; * = only one seen!
Petiole length (mm)	2–7	3–10	2–10	5–10
Leaf base	acute, attenuate, obtuse	acute, attenuate, obtuse	acute, attenuate, obtuse	acute, obtuse
Leaf margins	plane	revolute basally	plane	revolute basally
Leaf apex	acute, acuminate	acuminate	acute, acuminate	acuminate
Leaf hairs (abaxially)	erect; simple, 2–more-bundled	erect; simple, (2-bundled)	appressed, (erect); simple	erect; simple, 2–more-bundled
Pedicel length (mm)	5–17	5–8	2–10(–15)	5–22
Sepal length (mm)	3–7	3–5	2–5	3–6
Monocarps nr.	2–10	10–20	5–20	5–20
Monocarp wall (mm)	0.5	1	0.1–0.2	0.3–0.6
Stipe length (mm)	0–2	0–4	0–3	5–11
Seed size (mm)	6–8 × 5–6	15 × 7*	5–8 × 5–6	7–12 × 5–7
Distribution	Col, Ven, 3Gui, Braz, Peru, Bol	C. Amaz. Braz (Manaus)	Col, Ven, 3Gui, Braz. Peru, Bol	Col, Ven, Ec, Peru
Elev. range (m)	0–400(–1300)	0	0–100	100–1200
Habitat	non-inundated forest	non-inundated forest	often savanna	non-inundated forest
Soil	sand/clay	sand	often white sand	sand/clay