Z. officinale Rose, in Trans. Linn. Soc. VIII (1807) p. 348 et Sci- 

 tam. t. 83; Rom. et Schult. Syst. veg. I p. 23 ; //,„■„„. IWr. mon. 

 Scit. p. 27 ■ Huh. m Honk. (. VI. Writ. Ind. VI p. 240 ; Ridl. in 



5 COST US L. - 2%. Dm-. Index, n. 7129. 



C. afer Ker in Bot. Reg. VIII (1833) t, G83 ; Bot. Mag. (1857) 

 t. 4977 ; Rose. Scitam. p. 30 ; Dietr. Svn. pi. I p. 10 ; N/</r/h/. 

 Syst. veg. I p 13; Ridl. in Britt. Jonm. of Bot. (1887) p. 131; 

 /V/cjwh in /%/. et /->/•«»// Xaturl. hlnnzi-nf. iZim?ib.) p. 25 ; 



K. Schum. in /•>,/. P„,f. J;,hrb. XV (1892) p. 422. 



3 C. Englerianus 7v. helium, in Am//. Dot. Jalirb. XV i 1892) p. il ;1 



4 C. giganteus TTW«\ niss. <<x A7,//. in £n'«. Journ. of Bot (1887 



Afr.occ. : Sao-Thoml, XWlw! r>4or.. 

 3 C. Lucanusianus ./. Braun et AT .SV/n//h in Mitth v ForschuBH^ 

 •■•«■. x.m DumMmnn II 1SS9) p. 131 ; A'. >W/«»i. in W- &*■ 

 Jahi-1». XV . 1892. p. 422. 

 Mr. occ. : Kameroun. 

 C. pauciflorus K. Schum. in Am///. Bot. Jahrb. XV 1802) p. -*-!• 



7 C. phyllocephalus A'. Schum. in AW. Bot. Jahrb. XV \W- 



