114 COMPOSITA (Harv.) [ Dichrocephala. 
viscidulous; corymb. compound, many-headed ; inv. scales broadly 
linear, obtuse, glabrous. DC. 1. c. 388. Baccharis ivefolia, Linn. Thunb.! 
Cap. 666. 
Var. 6, seabrida; Jeaves (as well as stems) densely scabrido-puberulous, 3-nerved 
at base, and also somewhat penninerved as well as netted-veined. C. scabrida, DC. 
l. c. 387. 
Has. Throughout the Colony, and onto Natal. Var. B, at Uitenhage, Z. Z./ 
(Herb. D., Hk., Sd., Th.) 
A much-branched under-shrub, 2-3 feet high and more, densely leafy, and exud- 
ing resinous matter. Leaves distinctly petioled, 13-3 inches long, 3-1 inch wide, 
with callous-tipped serratures. Heads very numerous, smaller than in the other 
species. Var. 8 is by no means constant to its characters, and grows in localities 
where a is alsocommon. I cannot keep it apart specifically. 
9. C. (2) costata (Harv.); quite glabrous, shrubby; branches rod- 
like, rib-striate ; leaves oblongo-lanceolate, acute, sessile or nearly so, 
obtuse or acute at base, sharply serrate, the midrib beneath very promi- 
nent and thick (pale) ; the lateral veins netted, immersed; inflorescence 
unknown. 
Has. Magalisberg, Zeyher / (Herb. Sond.) 
This has strongly the aspect of C. ivefolia, but can hardly be a variety of it. It 
may not even be a Conyza, but as it is a remarkable-looking plant, from a famous 
locality, Iam unwilling to omit it altogether. It may perhaps be a Nidorella, near 
N. conyzoides. 
[Doubtful genus—probably a Conyza.] 
Wess, C. H. Schultz, Bip. 
Heads many-fi., heterogamous, all the flowers tubular ; those of the circumference 
filiform, in many rows, slender, truncate, female ; of the centre numerous, hermaphro- 
dite, 5-toothed. Jnv. imbricate, the scales acuminate, hairy. Recept. honeycombed, - 
the cells toothed. -Anthers without tails. Achenes of the female fi. glabrous, flat- 
tened, margined ; of the disc terete-compressed, margined. Pappus in the marginal 
fl. uniseriate, of scabrous bristles ; of the disc biseriate, bristle-shaped, the outer very 
short, inner of 15-16 barbellate bristles. Sch. B. in Walp. Rep. 2, p. 971. 
Named in honour of Phillip Barker Webb, author of a Nat. Hist. of the Canary 
Islands, and other works. It is to be regretted that the name of so distinguished a 
naturalist should have been bestowed on this obscure and weed-like plant. Does it 
really differ from Conyza ? 
1. W. Kraussii (Sch. B. 1. c.). Conyza Kraussii, Sch. B. MSS. 
Has. Cape, Krauss. (Unknown to me.) 
Said to be a hairy, subcanescent suffrutex, ascending-erect, 1 foot high, densely 
a ioe Leaves alternate, linear, inch long, 1 line wide, distantly toothed ; 
teeth 1-2 lines 
long, 1 line wide, hairy-strigose, often with leaf-tufts. Heads 
corymbose, hemispherical, erect ; fl. yellow.—I have abridged the author’s long 
description above quoted. Of the plant intended to be indicated I know nothing- 
XXVIII DICHROCEPHALA, DC. 
Heads many-fi., heterogamous, all the fl. tubular; marginal-fl. female, 
in many rows, 3—4-toothed, slender; central by abortion male, few, 
campanulate, 4-toothed. Recept. naked, conical. Jnvol. expanded, 
nearly uniserial, the scales ovate, subequal. Style included. Achenes 
compressed, without beak, the marginal without pappus, the central 
each with 1-2 bristles. DC. Prodr. 5, p. 371. 
