44. Tepals without an abscission line, entirely persistent in the fruit .............0..0000.. C. pachypodum 
44. Tepals with an abscission line above their base, partially persistent in fruit. 
45. Anthers of stamens of whorl III with two cells, if four then the upper ones about one 
fourth of the size of the lower ones or less. 
46. Lower surface usually glaucous; leaves ovate (or elliptic); apex obtuse or acute 
C. haussknechtii 
46. Lower surface not glaucous; leaves elliptic, apex acute to long acuminate 
C. tomentulosum 
45. Anthers of stamens of whorl III with four cells, all about the same size. 
47. Remnants of tepals erect, clasping fruit base; leaves mainly pinnate to 
subtriplinerved C. hartmanii 
47. Remnants of tepals rather spreading; leaves triplinerved or slightly subtriplinerved ... 
C. brenesii 
41. Secondary domatia present (at least in some leaves). 
48. Tepals with an abscission line above their base, partially persistent in fruit. 
49. Leaves ovate or elliptic; twig indument made only of curly hairs, appressed to spreading; 
anther cells in stamens of stamens of whorl III similar in size C. tonduzii 
49. Leaves obovate to oblanceolate; twig indument made of straight appressed hairs and wavy to 
curly erect hairs; anther cells in stamens of whorl III of different size, upper ones 
conspicuously smaller than lower ones 
C. pseudoglaziovii 
48. Tepals without an abscission line,whole persistent in the fruit. 
50. Distal part of twigs and lower leaf surface of young leaves with glomerules of white wax 
C. breedlovei 
50. Distal part of twigs and lower surface of young leaves without glomerules of white wax. 
51. Outer tepals glabrous inside; flower pedicel and outer tepals surface glabrous; 
hypanthium sericeous inside C. palaciosii 
51. Outer tepals sericeous inside; flower pedicel and outer tepal surface pubescent, if both 
glabrous then hypanthium also glabrous. 
52. Leaves obovate to oblanceolate; hairs on lower leaf surface straight to slightly wavy, 
38 
