Vernonia. | COMPOSIT (Harv.) 49 
one, and the ro ribs of its achenes are slight exaggerations of the 10 strie found on 
many acknowledged Vernonie ; nor is there any distinctive habit to mark its species, 
at least those of the section Gymnanthemum. In Webbia, DC., which is founded on 
its unisexual flowers, I find (as C. H. Scultz, Bip. has already pointed out) bisexual 
flowers in all the Cape species. Nor can I keep Vernonella, Sond., separate without 
also founding genera upon our V. monocephala and V, stahelinoides, which differ as 
widely in habit both from each other and from the species of the first section. —Ver- 
nonia is named in honour of W. Vernon, a botanist of the 17th century, who travel- 
led in North America in search of plants. 
a. Erect or half-climbing much-branched shrubs or hf.-shrubs. 
Heads corymbose or panicled. 
Lys. minutely pubescent or glabrous : 
Panicles divaricate-spreading; invol. scales acute (1) anisocheetoides. 
Corymbs erecto-patent ; invol. scales obtuse. 
Invol. scales powdery; pappus white ... ... (2) angulifolia, 
Invol. scales glabrous; pappus reddish ... ... (3) mespilifolia. 
Lys. densely tomentose or hoary beneath : 
Lvs. subsessile ; invol. sc. tomentose; heads 4~5-fl. (4) corymbosa. 
Lys. long-petioled ; inv.sc. glabrous; hds. 15—20-fl. (5) i 
6. Herbs, with simple, erect stems. Heads corymbose (Webbia, DC.) 
Stems uniformly leafy : 
Lys. petioled, ovate, silvery beneath, penninerved (6) Kraussii. 
Lys. sessile, silky-silvery on one or both sides : 
Lys. lanceolate, penninerved ; inv. sc. aristate (7) Natalensis. 
Lvs. linear, t-nerved ; inv. sc. mucronate ... (8) pinifolia. 
Lys. sessile, roughly pubescent (not silvery) ; 
Lys. cordate at base ; hairs simple, curled ... (9) hirsuta. 
Lys. acute at base; hairsforked ... ... ... (10) Sutherlandi, 
Stems nearly naked ; radical leaves obovate, large (11) Dregeana. 
ec. Herbs or suffrutices. Branches 1-headed : 
Iny. scales oblong, broad, obtuse or mucronate : 
Suffruticose, much branched, closely pubescent ... (12) staehelinoides. 
Herbaceous, glabrous ; lvs. subspathulate ... ... (13) Vernonella, 
Iny. scales lanceolate, much acuminate : 
Glabrous; achenes densely silky ... ... ... ... (14) Gerrardi. 
Hairy ; achenes 10-ribbed, quite glabro vs «+, (15) monocephala, 
1. V. anisochzetoides (Sond. in Linn. 23, p.61); shrubby, the branches, 
inflorescence, and young leaves minutely pubescent, becoming glabrous; 
branches flexuous, angularly striate; leaves conspicuously petioled, cu- 
neate at base, broadly obovate, sharply and angularly 3—5-toothed at 
the summit, or the upper ones subentire, acute, 3-nerved at base, pellu- 
cid-dotted ; panicle terminal, much branched, leafy, its branches widely 
spreading or deflexed, loosely divaricating, multifid; invol. scales ovato- 
lanceolate, acute, nerve-keeled, woolly ; heads 12-13-flowered; pappus 
pale. 
sda Near D’Urban, Natal, Gueinzius, 320,591. Gerr. & MK. 335, 336. (Herb. 
-) =e 
A large, half-climbing shrub. Lower leaves 2} inches long, and equally wide, 
with § sharp, toothlike lobes, with wide interspaces ; upper 14-2 inches long, 1-1} 
inch wide, mostly entire. Invol. scales with a dark central line, woolly at the sides, 
i FL. . Outer pappus of few scales.—Readily known, 
inflorescence. 
becoming glabrate. purple 
among 8. African species, by its divaricate infio 
2, V. angulifolia (DC. Prodr. 5, p. 29); subherbaceous, the branches, 
inflorescence, and foliage minutely puberulous ; branches angularly 
VOL. II. 4 
