iNDE\. 



5u: 



Cocos Iiidica, its remarkable f^eo- j 

 grapliieul dibtributiou, lil, 149; i 

 not seen on the banks ol" the 

 Congo, 101 



Cola, the African name of the seed of 

 Sterculia aeumiiiata, 153 



Colchicum, on the genus and its sub- 

 divisions, and on tiie species in ihe 

 collection from Central Africa, 

 298- 300 



Collomia, spiral vessels in the seeds 

 of, 5A9 



Conibretaceoe, character of the order 

 and observations on its distribu- 

 tion in Terra Australis, 10 



Composita), observations ou the class 

 and its distribution in Terra Aus- 

 tralis, 30 ; ou the species found in 

 the vicinity of the Congo, 128 ; ' 

 proportions of the order in various j 

 countries, 128-9; species found in i 

 Central Africa, 295 ; ovuhnn of, I 

 how differing from the usual struc- 

 ture, -lis 



Confluence, explanation of the sense 

 in which the term is used, 502-3 



Congo, observations ou the Herbarium 

 collected by Professor Christian 

 Smith in the vicinity of the, 97; 

 number of species in the Herbarium, 

 99 ; proportion of Dicotyledonous, 

 Monocotylcdonous, and Acotyledo- 

 nous, 100 ; comparison willi collec- 

 tions from other parts of the West 

 Coast of Africa, found by Adauson, 

 Smeathman, Brass, and Afzclius, 

 ibid. ; the vegetation of its banks 

 compared with other parts of the 

 West Coast of Africa, 152—102 ; 

 with the I'lora of Abyssinia and 

 Egypt, 102; of South Africa, 103; 

 of the Cape de Yerd Islands, St. 

 Helena, Madagascar, and the Isles 

 of Trance and Bourbon, 103 ; of 

 India, 103-4; of Equinoctial Ame- 

 rica, ibid. ; proportion of new 

 genera and species in the Congo 

 Herbarium, 172 ; esculent plants of, 

 154-102. 



Coniferse, observations on the order, 

 and on its distribution in Terra 

 Australis, 40 ; on the structure of 

 the female parts of fructification, 

 ibid. ; on the plurality and de- 

 velopment of the embryos in the 



seeds of, 505 — 575 ; nu uioir on 

 the development of the embryo in 

 C(jniferui, by AIM. de Mirbel und 

 Spach, 572-3 ; areohe or corpuseula 

 observed in all the European 

 genera of, by Dr. Schleiden, 57i; 

 agreement of structure between 

 axis of steui and strobilus in, 

 588 



Coniferaj and Cycadea;, on the struc- 

 ture of the female llowcr in, 453 — 

 401; the ovulum naked in, 453; 

 plurality of embryos in, 455 ; 

 opinions of authors respecting, 

 455-7 



Connaracea?, observations on the order 

 and its distinguishing characters, 

 and on the species found in the 

 vicinity of the Congo, 112 



Convolvulaceie, observations on the 

 species found in the vicinity of th.; 

 Congo, 135 ; in Central Africa, 290 



Convolvulus Batatas not met wiih OQ 

 the banks of ihe Congo, 101 



Cotyledcms, on the value of certain 

 modifications of the cotyledons in 

 characterising sections and genera 

 in Crueiferaj, 203 



Cratseva, observations on the genus, 

 its characters, and distribution, 

 277-8 



Craiaiva Adansonii, the only known 

 African species, 277 



Cruciferai form with Capparideac, Re- 

 sedacea?, Papaveraceie and Euma- 

 riaceae, a natural class, 272 



Crucifera', observations on the struc- 

 ture and arrangement of the order, 

 and on the species found in CeninJ 

 Africa, 201 — 272 ; on the slruclure 

 of the dissepiment, 209 — 271 ; 

 on the structure of the pistillum 

 in, 270 note ; stigmata and niaceutiu 

 of the adjoining cells conliuent in, 

 559 



Cr}|)iogamous plants, number of pub- 

 lished species [in lsl4j, 7 ; number 

 of Ausiraliau species known [m 

 1814], 7; proportion of in Terra 

 Australis, 9 ; liow far this propor- 

 tion is influenced by climate, 9 



Cucurbitaccje, their relation to Piissi- 

 florca-, 121 ; anthers of, 401 



Cultivated plants of the banks of the 

 Congo, chiefly iutroduccd, 155 



