INDEX. 



597 



Cocos Indica, its remarkable geo- 

 graphical distribution, 141, 149 ; 

 not seen on the banks of the 

 Congo, 161 



Cola, the African name of the seed of 

 Sterculia acuminata, 153 



Colchicum, on the genus and its sub- 

 divisions, and on the species in the 

 collection from Central Africa, 

 298- 300 



Collomia, spiral vessels in the seeds 

 of, 549 



Combretacese, character of the order 

 and observations on its distribu- 

 tion in Terra Australis, 19 



Compositse, observations on the class 

 and its distribution in Terra Aus- 

 tralis, 30 ; on the species found in 

 the vicinity of the Congo, 128 ; 

 proportions of the order in various 

 countries, 128-9; species found in 

 Central Africa, 295 ; ovulum of, 

 how differing from the usual struc- 

 ture, 448 



Coufluence, explanation of the sense 

 in vphich the term is used, 562-3 



Congo, observations on the Herbarium 

 collected by Professor Christian 

 Smith in the vicinity of the, 97 ; 

 number of species in the Herbarium, 

 99 ; proportion of Dicotyledonous, 

 Mouoootjledonous, and Acolyledo- 

 nous, 100 ; comparison witli collec- 

 tions from otlier parts of the West 

 Coast of Africa, found by Adanson, 

 Smeathman, Brass, and Afzehus, 

 ibid.; the vegetation of its banks 

 compared with other parts of the 

 "West Coast of Africa, 152—162 ; 

 with the Elora of Abyssinia and 

 Egypt, 163 ; of South Africa, 163 ; 

 of the Cape de Verd Islands, St. 

 Helena, Madagascar, and the Isles 

 of Trance and Bourbon, 163; of 

 India, 163-4; of Equinoctial Ame- 

 rica, ibid. ; proportion of new 

 genera and species in the Congo 

 Herbarium, 172 ; esculent plants of, 

 154—162. 

 Couiferse, observations on the order, 

 and on its distribution in Terra 

 Australis, 46 ; on the structure of 

 the female parts of fructification, 

 ibid. ; on the plurality and de- 

 velopment of the embryos in the 



seeds of, 565 — 575 ; memoir on 

 the development of the embryo in 

 Coniferse, by MM. de Mirbel and 

 Spaoh, 572-3 ; areolae or corpuscula 

 observed in all the European 

 genera of, by Dr. Schleiden, 574 ; 

 agreement of structure between 

 axis of stem and strobilus in, 

 588 

 Coniferse and Cycadese, on the struc- 

 ture of the female flower in, 453 — 

 461; the ovulum naked in, 453; 

 plurality of embryos in, 455 ; 

 opinions of authors respecting, 

 455-7 

 Conuaracese, observations on the order 

 and its distinguishing characters, 

 and on the species found in the 

 vicinity of the Congo, 112 



Convolvulacese, observations on the 

 species found in the vicinity of the 

 Congo, 135 ; in Central Africa, 296 



Convolvulus Batatas not met with on 

 the banks of the Congo, 161 



Cotyledons, on the value of certain 

 modifications of the cotyledons in 

 characterising sections and genera 

 in CrueifersB, 263 



Cratseva, observations on the genus, 

 its characters, and distribution, 

 277-8 



Cralseva Adansonii, the only known 

 African species, 277 



Cruciferse form with Capparidese, Re- 

 sedaceae, Papaveracese and Euma- 

 riacesB, a natural class, 272 



CrucifersB, observations on the struc- 

 ture and arrangement of the order, 

 and on the species found in Central 

 Africa, 261 — 272 ; on the structure 

 of the dissepiment, 269 — 271 ; 

 on the structure of the pistillum 

 in, 270 note ; stigmata and placentae 

 of the adjoining cells confluent in, 

 559 



Crjptogamous plants, number of pub- 

 Ushed species [in 1814], 7 ; number 

 of Auslrahan species known [in 

 1814], 7; proportion of in Terra 

 Australis, 9 ; how far this propor- 

 tion is influenced by climate, 9 



Cucurbitaoeae, their relation to Passi- 

 floresB, 121 ; anthers of, 461 



Cultivated plants of the banks of the 

 Congo, chiefly introduced, 155 



