20£ 148. COMPOSITAE. 



Pappus of bristles. 43. 



43. Ray flowers white, blue or red. Shrubs. 35 PRINTZIA. 



Ray flowers yellow or wanting (Bojeria). 34 INULA. 



44. Corolla of marginal flowers strap-shaped. 45. 



Corolla of marginal flowers thread-shaped, or marginal 

 flowers 0. 4?. 



45. Pappus of scales united below. Heathlike plants. 



28 NESTLERA. 

 Pappus or of bristles. Not heath-like plants. 46. 



46. Pappus wanting. 71 DIMORPHOTHECA. 



Pappus of bristles. 33 ATHRIXIA. 



47. Hermaphrodite flowers fewer than the female. 48, 

 Hermaphrodite flowers as many as or more than female, or 



latter 0. 50. 



48. Outer flowers without, inner with plumose pappus. 



21 AMPHIDOXA. 

 Inner and outer flowers with pappus. 49. 



49. Heads 4—8, flowered, cylindrical. 22 ACHYROCLINE. 

 Heads many flowered. 23 GNAPHALIUM. 



5Q. Heads 1 flowered. Pappus plumose. TIeathlike shrubs. 



32 STOEBE. 



Heads more than 1 flowered. 51. 



51. Pappus bristles in 3 or more rows. 25 LEONTONYX. 



Pappus bristles in 1 row. 52. 



$2. Habit heath-like. Leaves rolled in on upper face. 



27 METALASIA. 

 Habit not heath like. 24 HELICHRYSUM. 



53. (17) Hermaphrodite disc flowers sterile, their style without a 



stigma, usually entire or short toothed. 54. 



Hermaphrodite flowers, at least some of them, fertile. 74. 



54. Anthers sagittate, with acuminate halves. Pappus wanting, 



rarely cup-shaped. Receptacle glabrous, rarely bristly. 55. 

 Anthers entire or shortly auricled at the base. 59. 



55. Outer fruits of several kinds (see 33.) 73 OLIGOCARPUS. 

 Outer fruits all alike. 56. 



56. Fruit with 3 wings, and an apical appendage. 72 TRIPTERIS. 

 Fruit without distinct wings or appendages. 57. 



57. Fruits smooth or indistinctly ribbed. Rayflowers yellow. In- 



volucre of 2 or more rows. 75 OSTEOSPERMUM. 



Fruits 3 angled, usually tubercled. 58. 



58. Involucral bracts in 1 row or 2 indistinct rows. 



71 DIMORPHOTHECA. 

 involucral bracts in several rows. Rays blue or white. 



74 GARULEUM. 



59. Receptacle with chaflfy scales. 60. 

 Receptacle glabrous, or hairy without scales. 62. 



