168 LXX. COMPUrSIT-E. 



Teibe 6. CiciioiiACE^. (Gen. 147-154.) 



Pappus plumose. 



Involucre imbricate ; receptacles scaly ; central 



achenes beaked 147. KYPOcn^EiS. 



Involucre 1-seriate ; receptacle nude ; all the 



achenes beaked 148. TJrospeemum. 



Pappus bristle- or hair-shaped. 

 Achenes with a long beak. 



Achenes flattened, smooth or striate. Stem 



branched 149. Lactuca. 



Achenes oblong, with hard sharp points at 

 the apex. Leaves all radical. Stem scape- 

 like, 1-headed 150. Taeaxacum. 



Achenes oblong, compressed, the outer with a 

 short, inner with a long beak. Leaves ra- 

 dical. Stem branched 154. Anisokami'UOS. 



Achenes bcakless or very shortly beaked. 



Achenes 4— 5-angled, slightly beaked. Stems 

 trailing, bearing tufted leaves and axillai-y 



flower-heads 151. Mickoehyncus. 



Achenes compressed, beakless. Pappus very 



soft and white. Branching herbs . . . 152. SoNCnus. 

 Achenes 5-angled, beakless. Pappus rigid, 

 discoloured. Branching herbs. Leaves 

 chiefly radical 153. Hieeacium. 



Teibe 1. Veenoxie^. (Gen. 1-6.) 



1. ETHULIA, Cass. 



Heads many-flowered, homogamous. Involucre imbricate ; 

 scales herbaceous, acute. Eeceptacle nude. Corolla bell- 

 sbaped, 5-fid. Anthers short, included. Style shortly ex- 

 serted, its branches bristly. Achenes obconic, 4-angled, 4- 

 ribbed, glabrous, truncate, and 4-5-angled at the summit. 

 Pappus an entire, thickened rim. — Fl. Cap. iii. p. 47. 



Branching, weed-like herbs of hot countries. — ^. comjzoides, Linn., a 

 common tropical plant, occurs at Natal. 



2. LITOGYNE, Harv. 



Heads hctcromonoDcious. many-flowered ; central flower 

 male, funnel-shaped, 5-toothed ; marginal female, in many 

 rows, filiform, 3-toothed. Involucre imbricate, the scales 

 acute. Eeceptacle nude, dei)ressed. Pappus 0. — Male: An- 

 thers linear, partly exserted, acute at base. Style simple, 

 much exserted, the exserted portion hispid all round. Ovary 

 abortive. — Female : Anthers 0. Style exserted, deeply 2-fid, 

 the arms glabrous, blunt, spreading. Ovary glabrous, minute, 

 ovuliferous. Achenes unknown. — Fl. Cap. iii.p. 48 ; Thes. Cap. 

 t. 155. 



Much-branched, small, rigid plants, with entire or denticlcd, alternate 



