LXX. COMPOSIT.^. 109 



Small annuals. Leaves chiefly radical, rosulate, lyrate or linear. Stem 

 branched. Heads small, corymbose, yellow.— 2 species, both Western. 



117. SENECIO, Linn. 



Heads cither discoid homogamous or radiate ; ray-flowers 

 ligulate, female ; disk-flowers 5-toothed, bisexual. Involucre 

 1-seriate, rarely quite nude at base, usually more or less 

 calycled ; involucral scales frequently with withered or dark 

 tips, membrane-edged, often 2-nerved. lieceptacle nude or 

 honeycombed. Style-arms of the disk-flowers truncate. 

 Achenes terete, truncate or slightly tajiering at the suunnit. 

 Pappus multiseriate, pilose, caducous, the bristles straight, Aery 

 slender, roughish. — Fl. Cap. iii. p. 346. (Senecio and Brachy- 

 rhynchos, DC.) 



A vast, cosmopolitan genus, of many hundred species, of which nearly 

 180 are found at the Cape. Some are trees, others shrubs, halfshrubs, 

 stemless perennials or annuals. Leaves alternate. Flowers yellow or 

 purple. 



118. EURYOPS, Cass. 



Heads many-flowered, radiate ; rays female, ligulate ; disk- 

 flowers 5-toothed, bisexual. Involucral scales 1-seriate, their 

 margins more or less concrete, valvate in aestivation. liecepta- 

 cle convex or conical, mostly honeycombed. Style-arms trun- 

 cate. Achenes roundish or subcompressed, wingless, beakless. 

 Pappus multiseriate, caducous, of rough, brittle, flexuous 

 bristles, the outer ones often deflexed or decurrent. — Fl. Cap. 

 iii. p. 408 ; Thes. Cap. t. 153. 



Small slnnibs, all but one South African. Leaves alternate, crowded, 

 coriaceous or fleshy, entire, serrate, 3-fid, or pinnate-parted. Peduncles 

 nude, 1-headed. Flowers yellow. Involucre never calycled. — 26 species, 

 dispersed. 



119. RUCKERIA, DO. 



Heads many-flowered, heteromonoecious, radiate ; rays 

 ligulate, female ; disk-flowers mostly abortive. Involucre 1- 

 seriate, the scales more or less concrete at base. Keceptacle 

 subconvex, areolate. Style-arms in the disk-flowers truncate. 

 Kay-achenes oblong, terete, those of the disk slender, abortive, 

 velvety. Pappus in many rows, similar, caducous, the bristles 

 exceedingly slender, slightly nodulose, jointed, smooth, at 

 length aggregated in copious woolly tufts. — Fl. Cap.\i\. p.4ili^. 



Undershrubs or herbs, with the habit of Eurijops. Stem leafy at base, 

 ending in long, nude, 1-hcaded peduncles. Leaves pinnate-parted. Flowers 

 yellow. — 3 species, all Western. 



