6 RUBIACEZ. 
Order LXXI. RUBIACE/E. 
Rubiacee, Benth. et Hook. Gen. Plant. ii. p. 7. 
This order includes upwards of 4000 species, belonging to about 340 genera; and it is 
dispersed throughout the world except in the coldest regions. 
[BERGHESIA, Nees in Linnea, xx. p. 701; Benth. et Hook. Gen. Plant. ii. p. 39. 
Berghesia coccinea, Nees in Linnea, xx. p. 702.. 
Mexico (De Berghes). A doubtful plant. ] 
Tribe I. NAUCLEZ. 
Nauclee, Benth. et Hook. Gen. Plant. pp. 8, 9. 
Fight genera are referred to this tribe; and their species are dispersed nearly all over 
the warmer regions. | 
1. CEPHALANTHUS. 
Cephalanthus, Linn. Gen. Plant. n. 113; Benth. et Hook. Gen. Plant. ii. p. 30. 
There are six shrubby species, natives of Tropical Asia, Tropical and Temperate 
America; and one occurs in Extratropical South Africa. 
1. Cephalanthus occidentalis, Linn. Sp. Pl. p. 138; Barton, Fl. iii. t. 91. 
Kastern States of North America to Canirorni4.Also in Mexico, according to 
Gray in ‘ Botany of California.’ 
2. Cephalanthus salicifolius, Humb. et Bonpl. Pl. Aquin. ii. p. 63, t. 98. 
South Mexico, near Acapulco (Humboldt & Bonpland), Morelia, at 3600 feet 
(Galeotti, 2593), Puebla (Andrieux, 331), Sierra San Pedro Nolasco (Jurgensen, 160). 
Hb. Kew. 
2. UNCARIA. 
Uncaria, Schreb. Gen. Plant. i. p. 125; Benth. et Hook. Gen. Plant. ii. p. 31. 
Ourouparia, Aubl. Pl. Gui. i. p. 177, t. 68. 
About thirty species are known; with the exception of the following and one African 
species they are natives of Tropical Asia. They are climbing shrubs. 
1. Uncaria tomentosa; DC. Prodr. iv. p. 349. 
_Nauclea tomentosa, Willd. in Roem. et Schult. Syst. v. p. 221; Karst. Fl. Colomb. ii. t. 180. 
figg. ii. et 13. 
Nauclea aculeata, H. B. K. Nov. Gen. et Sp. ii. p. 382. 
Nicaragua, Chontales (Tate, 387).—Cotompra, Guiana, and TRinipap. Hb. Kew. 
