Maruta. COMPOSIT.E. 407 



CONSPECTUS OF THE GEIVERA. 



Div. 1. EaANTHEMiDE^. — Receptacle chaffy. Rays ligulate, in a single series (or 

 rarely wanting) : the disk-flowers perfect. 



145. Maruta. Rays neutral. Achenia obovoid, ribbed. 



146. Anthemis. Rays pistillate. Achenia terete or quadrangular. 



147. Achillea. Rays pistillate. Achenia obcompressed, margined. 



Div. 2. Chrysantheme^. — Receptacle naked. Rays ligulate in a single series 

 (rarely none) : the disk-flowers perfect. 



148. MoNOLOPiA. Scales of the cup-shaped involucre 8-10, united below. Re- 



ceptacle convex. Achenia of the ray somewhat obcompressed ; of the 

 disk compressed. Leaves opposite and alternate. 



149. Coinogyne. Scales of the involucre few, imbricated, unequal. Receptacle 



conical. Achenia consimilar, oblong. Leaves opposite. 



150. Venegasia. Scales of the campanulate involucre imbricated in several 



series; the 5 exterior foliaceous. Receptacle flat. Achenia obscurely 

 quadrangular. Leaves alternate. 



151. Egletes. Scales of the hemispherical involucre imbricated. Receptacle 



convex. Achenia angled or ribbed, with a thick coroniform pappus. 



152. Leucanthemum. Scales of the depressed involucre imbricated. Receptacle 



flat or convex. Achenia somewhat terete, striate, destitute of pappus, or 

 those of the ray with an auriculseform pappus. , 



153. Matricaria. Scales of the involucre imbricated. Receptacle ovate-conical. 



Achenia angled, wingless : pappus none, obscure, or coroniform. 



Div. 3. CoTULE^ & Artemisie^. — Receptacle naked. Heads discoid, homo- 

 gamous or heterogamous : the flowers all tubular ; those of the disk perfect, but 

 sometimes infertile. 



154. Aeomia. Heads heterogamous. Achenia quadrangular, tapering to the 



base. Pappus of chaffy scales nearly as long as the corolla. 



155. Tanacetum. Heads homogamous or heterogamous. Achenia angled or 



ribbed, with a large epigynous disk. Pappus none, or minute. 



156. Artemisia. Heads heterogamous or homogamous. Achenia obovoid, with 



a small epigynous disk. Pappus none. 



Div. 4. Hippies. — Receptacle naked. Heads monoecious : the pistillate, flowers 

 in the margin ; the staminate in the centre. 



157. SoLivA. Fertile flowers in several series, apetalous or nearly so ; the stami- 



nate few. Achenia obcompressed, with winged or callous margins, 

 armed with the persistent style. 



Div. 1. EuANTHEMiDE^;, DC. — Receptacle chaffy. Heads mostly 

 radiate ; the rays ligulate, in a single series ; the disk-flowers perfect. 



145. MARUTA. Cass., Less. ; DC. prodr. 6. p. 13. 



Heads many-flowered ; the rays neutral (rarely nearly wanting), continu- 

 ous with the sterile ovary. Scales of the hemispherical involucre imbricated 



