204 



and occupies an intermediate position between genuine Cinchonacese and Dip- 

 sacese. A good monograph is much wanted of this extensive order, a very large 

 proportion of the species belonging to which remains still unpublished, I 

 have been constrained to alter the name of Rubiaceoe, because the genus 

 Rubia does not belong to the order, as I limit it. 



Schlechtendahl and Chamisso divide the order thus : — 



Linnaa, 3. 309. &c. (1828.) 



§ 1. Anthosperme.^. 



Fruit capsular, 2-celled, 2-seeded, usually splitting into 2 pieces, rarely 

 indehiscent. Leaves somewhat whorled, with a simple stipula between the 

 leaves. 



Examples. Anthospermum, Ambraria, C4alopina, Phyllis. 



§ 2. Spermacoce;e. 



Fruit capsular, 2- 3- or 4-celled ; cells 1 -seeded. Leaves opposite, con- 

 nected by a bristly ciliated stipula. Flowers in regular cymes, branched bi- 

 or trichotomously. 



Examples. Spermacoce, Borreria, Mitracarpum, Psyllocarpus, Ri- 

 chardsonia, Diodia, Staelia. 



. § 3. PsYCHOTRIACEiE. 



Ovarium generally w^ith 2 cells, each containing 1 ovulum. Fruit dru- 

 paceous or berried. — Shrubs, usually with opposite leaves. 



Examples. Declieuxia, Psychotria, Ixora, CofFea, Chiococca, Macha- 

 onia, Palicurea, Tetramerium. 



§ 4. CephaelidejE. 

 Flowers in capitate fascicles. Berry 2-seeded. 

 Examples. Cephaelis, Geophila. 



§ 5. CoCCOCYPSELEX. 



Flowers in capitate fascicles. Berry 2-celled, many-seeded. 

 Examples. Coccocypselum, Burchellia. 



§ 6. Cephalantheje. 

 Flowers in round heads. Fruit variable. 

 Examples. Cephalanthus, Nauclea, Morinda. 



§ 7. Hedtotide/E. 

 Capsule 2-celled, with a loculicidal dehiscence (indehiscent in Dentella). 

 Cells many-seeded. 



Examples. Dentella, Hedyotis, Gerontogea, Kohautia, Kadua, Xan- 

 thophytum, Metabolos, Rondeletia, Sipanea. 



§ 8. Manettieve. 

 Capsule 2-celled, with a septicidal dehiscence. Cells many-seeded. Sta- 

 mens 4. 



Example. Manettia. 



§ 9. ClNCHONE^. 



Capsule 2-celled, with a septicidal dehiscence. Cells many-seeded. 

 Stamens 5, or more. 



Examples. Cinchona, Buena, Exostemma, Augusta. 



§ 10. Guettarde*. 

 Drupe either with 1 stone and many seeds, or with several 1-seeded stones. 

 Examples. Guettarda, Chomelia, Burneya. 



§ 11. Hameliace^e. 

 Berry many-celled ; cells many-seeded. 

 Examples. Hamelia, Sabicea, Axanthes, Gonzalagunia. 



