LXX. COMPOSITiE. 187 



vluced iit base into ii broad, concave, ear-like spur, which com- 

 l)letely enwraps the ovary and finally the achene ! Involucre 

 double, the outer of few, broad, loose scales, the inner of few 

 or many, scarious, appressed scales. Eeceptacle flat, without 

 palesD, but rough with the persistent, tooth-like pedicels. 

 Achenes of the marginal flowers flattened, with a marginal 

 Aving ; of the disk-flowers oblong, wingless. — Fl. Cap. iii. p. 



mi. 



O. Ilckloniana, DC, i3 a small annual, with opposite, simple or pinnate- 

 parted, slender leaves, and pedunoled, terininal heads. Flowers yellow. — 

 Found in wet, sandy spots about Capetown. 



71. COTULA, Ggjrtn. 



Heads discoid, heterogamous, rarely homogamous ; mar- 

 ginal flowers in 1 or several rows, female, either Avithout co- 

 rolla or with a short, 2-toothed or filiform one ; disk-flowers 

 with a flat or winged tube, sometimes shortly 2-eared at base, 

 and a 4<-toothed limb. Involucre 2-3-seriate, of subequal, 

 blunt scales. Eeceptacle flat or conical, papillate or nude. 

 Achenes piano-compressed, often wing-margined, without 

 ])appus ; those of the marginal flowers mostly stipitate. — Fl. 

 Cap. iii. p. 177. 



Small annuals or rarely perennials. Leaves rarely opposite or whorled, 

 often sheathing at base, toothed, cut or pinnate-parted, with narrow lobes. 

 Peduncles 1-headed. — 22 Cape species, dispersed. 



72. CENIA, Comm. 



Heads shortly radiate or discoid ; rays female, in 1-2 rows, 

 shortly ligulate or 2-labiate, or some without corolla, rarely 

 all the flowers tubular. Disk-flowers compressed, 4-toothed. 

 Involucral scales 2-seriate. Eeceptacle convex, nude. Achenes 

 compressed, wingless, but margined, without pappus. — Fl. 

 Cap. ill. p. 184. 



Small, hairy annuals or pei'cnnials, with pinnatisect, multifid leaves and 

 1-headcd peduncles. The top of the peduncle is usually obeonical and 

 hollow, just beneath the involucre, an appearance which increases as the 

 head becomes mature. — 4 species, dispersed. C. turhinata is a very com- 

 mon weed. 



73. STILPNOPHYTUM, Less. 



Heads discoid, homogamous. Involucral scales imbricated, 

 dry. Eeceptacle flat, nude. Achenes oblong, cylindrical, 

 angularly ribbed or striate and furrowed, or cuneate, sub- 

 compressed. Pappus 0. — M. Gap. iii. p. 18(j. 



Glabi'ous shrubs, with the habit of At/uDiasla. Leaves linear, entire, al- 

 ternate, I'arcly opposite. Heads corymbose, rarely solitary. Flowers yel- 

 low. — 3 species, dispersed. 



