LXXVIII. COMPOSITE. (J. D. Hooker.) 223 



late, or style of sterile fl. entire. Ackenes 3-4-angled or terete or compressed. 

 Pappus of 2-4 "bristles or paleaceous or 0. 



Subtribe 1. LAGASCE.E. Heads 1-flowered in globose clusters ; in vol. bracts 

 forming a 5-fid tube. 

 A villous or scabrid herb ; lower or all the leaves opposite . 48*. LAQASCEA. 



Subtribe 2. MILLERIE^;. Heads few-flowered. Fl. $ sterile with undivided 

 styles. Receptacle naked in the centre. 

 Achenes and inflorescence with stipitate glands 49. ADENOCAULON. 



Subtribe 3. MELAMPODIE^. Heads manyflowered. Fl. $ sterile with un- 

 divided styles. Receptacle paleaceous all over. 



Achenes dorsally compressed, with acute margins, embraced 



by the palese of the receptacle 50. CHRYSOOONUM. 



Subtribe 4. AMBBOSIE^E. Heads heterogamous or unisexual. Fl. $ sterile 

 with undivided styles ; <j> apetalous. Anthers nearly free, with inflexed appen- 

 dages. 



Invol.-bracts of $ fl. free ; of <j? forming a 2-flowered 2-celled 



capsule armed with glochidiate spines 51. XANTHIUM. 



Subtribe 6. VERBESINE^. Heads hetero- or homogamous. Fl. all 

 fertile. Achenes of the disk angled, subterete, or laterally compressed, crowned 

 with 2-3 bristles or scales or naked.-^Zertves usually opposite. 



* Inner invol.-bracts embracing the achenes. 



Outer invol.-bracts 5-glandular 52. SIEGESBECKIA. 



Outer invol.-bracts 4, broad, in opposite pairs, a marsh herb 53. ENHYDRA. 



** Inner invol.-bracts not embracing the achenes. Pal etc of receptacle flat, 

 narrow. 

 Outer invol.-bracts many 54. ECLIPTA. 



F * Inner invol.-bracts not embracing the achenes. Palccc of receptacle con- 

 cave, embracing the achenes. 



Ray-fl. ligulate, sterile. Achenes not -winged nor ciliate . . 55. SCLEROCARPUS. 



Kay-fl. with small ligules. Achenes not winged 56. BLAINVILLEA. 



Ray-fl. with large yellow ligules. Achenes thick .... 57. WBDELIA. 



Ray-H. with white or yellow ligules. Achenes ciliate . . . 58. SPILANTHES. 



Subtribe 6. COREOPSISES. Heads hetero- or homogamous. Fl. all fertile 

 or neuter. Achenes dorsally compressed, 2-4-awned or naked. 



* Outer invol.-bracts herbaceous, subequal ; inner shorter like the palea of the 

 receptacle. 



Achenes small, sub-4-angled, sheathed at the tip by the hairy 



corolla. Pappus 58*. GUIZOTIA. 



Achenes flat, margins lacerate and winged. Pappus of bristles 58*. SYNEDREI/LA. 



** Outer involucral bracts few, small ; inner membranous, connate below. 



Style-arms with short appendages. Leaves alternate . . .59. GLOSSOCARDJA. 

 Style-arms with short appendages. Leaves opposite. Achenes 



usually 2-4-awned 60. BIDEKS. 



Style-arms with long appendages. Achenes with 2 bristles .61. GLOSSOGYNE. 

 Style-arms with long appendages. Achenes awnless . . .62. CHRYSANTHELLTTM. 



Subtribe 7. GALINSOGEJE. Heads hetero- or homogamous. Fl. $ all fertile. 

 Achenes with short bristle-like palese. 



Pappus paleae entire or fimbriate 62*. GALINSOGA. 



Pappus palese awned, plumose 62*. TJRIDAX. 



