184 LXX. COMPOSIT.T^. 



58. ADENACHJENA, DC. 



Heads radiate ; rays ligulate, in 1 row, female ; disk-flowers 

 bisexual, 4-5-fid, with a terete tube. Involucral scales shorter 

 thau the disk, in 2-8 rows, subequal, narrow, the inner obtuse. 

 Eeceptacle plano-convex, at length subglobose, minutely pa])il- 

 lose. Achencs all subterete, without pap])us, truncate, and 

 denticled at the expanded summit ; rib striate, the stride covered 

 with ])apilhe or glandular granules. — Fl. Cap. iii. p. IGO. 



Erect, much-braiiclied, glabrous or pubescent, small shrubs. Peduncles 

 terminal, 1-headed, short. Leaves alternate, Imear, 3-fid or on each side 

 1-toothed. Rays white, reflexed. — 2 species, of whicli A. parvifoUa (" Good 

 Karroo ") is one of the most valuable plants, as pasture, for Merino sheep. 



59. CHRYSANTHEMUM, Linn. 



Heads radiate ; rays ligulate, 1-seriate, female or rarely 

 neuter ; disk-flowers bisexual, 4-5-toothed, with a compressed, 

 fleshy, 2-winged tube. Involucre imbricate, the scales mem- 

 brane-edged. Eeceptacle nude, flat or convex. Style-arms 

 truncate. Achenes dissimilar, those of the ray 3-angled or 3- 

 winged, 2 angles or wrings lateral, the third on the inner face ; 

 of the disk compressed or subterete, with a short facial wing. 

 Pappus or coroniform. — Fl. Cap. iii. ^j. 161. 



Herbs or small shrubs of various habit. Leaves alternate. Eays yellow 

 or white. — 5 South African species, dispersed. 



60. BRACHYMERIS, DC. 



Heads 8-16-flowered, homogamous. Involucre campanu- 

 late-ovate, imbricate ; scales appressed, oval-oblong. E-ccep- 

 tacle nude. Corolla pubescent externally, with a short tube, 

 5-fid. Anthers not tailed. Style-arms truncate, short. 

 Achenes terete, subcompressed, striate, beakless, scabrid, 

 without pappus. Fl. Gap. iii. p. 163. 



B. scoparia^ E. M., is a very rigid, scrubby bush, with very small, thick, 

 oblong or lineai', obtuse, entire silky leaves and small, subsessile, crowded, 

 subracemose heads. Flowers yellow. — North-Eastern and Eastern districts. 



61. MATRICAIIIA, Linn. 



Heads radiate or discoid ; rays ligulate, 1-seriate, female ; 

 disk-flowers tubular, bisexual, 4-5-toothed, terete. Involucre 

 imbricate, the scales membrane-edged, subequal. Eeceptacle 

 ample, nude, globose or ovate-conical ! Style-arms truncate. 

 Achenes wingless, angular, glabrous, similar in disk and ray, 

 with a large, epigynous areole. Pappus 0, or shortly toothed, 

 crown-like or ear-shaped. — Fl. Cap. iii. j). 163. 



Annuals, with nudtipartcd leaves and solitary or corymbose heads. — 11 

 Cape species, of which 5 have white rays and (3 arc discoid ; dispersed. 



