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The bold-italic parts are diagnostic descriptions, generated with the aid of Intkey (Dallwitz, Paine and Zurcher 1995, 2000). They distinguish each taxon in at least two respects from every other taxon.
A B C D F G H I K L M N O P R S T U V W X
A
Acranthera Arn. ex Meisn.
Aidia Lour. Amaracarpus Blume Antherostele Bremek. Antirhea Comm. ex Juss. Argostemma Wall.
B
Badusa A. Gray Bikkia Reinw. ex Blume
C
Coelospermum Blume Canthium Lam. Ceriscoides
(Hook. f.) Tirveng. Chassalia Comm. ex
Juss. Cinchona* Linn. Coffea* Linn. Coptosapelta
Korth. Cowiea Wernham
D
Damnacathus Gaertn. Dentella Forst. Diplospora
DC. Discospermum Dalz. Dolicholobium A. Gray
G
Galium Linn. Gardenia Ellis Geophila
D.Don Greenea Wight & Arn.
Greeniopsis Merr. Guettarda Linn. Gynochtodes
Blume
H
Hamelia* Jacq. Hedyotis Linn. Hydnophytum
Jack. Hymenodictyon Wall.
Hypobathrum Blume
I
Ixora Linn.
K
Knoxia Linn.
L
Lasianthus Jack. Ludekia Ridsd.
M
Metadina Bakh. f. Mitragyna Korth. Morinda
Linn. Mussaenda Burm. ex Linn.
Mycetia Reinw. Myrmecodia Jack. Myrmeconauclea
Merr. Myrmephytum Becc.
N
Nauclea Linn. Neonauclea Merr. Nertera
Banks & Sol. ex Gaertn.
O
Oldenlandia Linn. Ophiorrhiza Linn. Oxyceros Lour.
P
Paederia Linn. Pavetta Linn. Pentas*
Benth. Pertusadina Ridsd.
Pleiocarpidia Schum. & Bremek.
Posoqueria* Aubl. Praravinia Korth. & Bremek. Prismatomeris Thw. Psychotria Linn.
R
Rondeletia* Linn. Rothmannia Thunb. Rubia
Linn.
S
Saprosma Blume Schradera Vahl. Scyphiphora
Gaertn. f. Spermacoce L.
Streblosa Korth. Sulitia Merr.
T
Tarenna Gaertn. Tarennoidea Tirveng. & Sastre Timonius DC.
U
Uncaria Schreb. Urophyllum Jack ex Wall.
V
Villaria Rolfe
X
Xanthophytum Reinw. ex Blume
Cite this publication as: G. Alejandro and S. Liede (2002 onwards). The Philippine Rubiaceae Genera: Descriptions, Illustrations, Identification, and Information Retrieval. Version: 21st September 2000. http://www.uni-bayreuth.de/departments/planta2/research/databases/delta_ru/index.htm. Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993, 1995, 2000) should also be cited (see References).