312 LXXIII. COMPOSITE (OLIVER AND HIERN). [ Conyza. 
obtuse or acute, often toothed at tip. Achenes 
shining . . 1. 1 ww ee ee 
Ligule of ¢ florets obsolete. Upper leaves petiolate. ; 
Petioles winged. Receptacle pitted. . . . . . 15. C. Newitt. 
Ligule of Q florets present. Leaves usually not amplex- 
icaul. 
Leaves distinctly petiolate woe ee 
Leaves sessile or with short winged petioles. 
Leaves white-tomentose beneath. 
Leaves glabrous above, serrulate . . . . . 17. C. hypoleuca. 
Leaves tomentose above, revolute, with one or 
two strong lateral teeth . . . . . . . 18. @. incana. 
Leaves pubescent, hispid or scabrid, green beneath. 
Leaves oval or lanceolate, entire or distant- 
toothed. Heads}-lin.diam. . . . . 1.19.64 pyrrhopappa. 
Leaves linear, toothed or pinnatifid. Heads } in. 
diam., in densecymes . . . . . . . . 20. C. stricta. . 
Of Conyza fastigiata, Willd.; DC. Prodr. v. 381, we have not seen tropical 
African specimens. C. dongolensis, Del.; DC. 1. ¢. 388, described from very imperfect 
material, is unknown to us. 
Conyza Kotschyi, Schultz Bip. ex Schweinf. et Aschers. Enum. p. 284, name only, 
non Boiss., from Nubia, Kordofan and Bahr-el-Abiad, is Vicoa auriculata, Cass. 
1. ©. persiceefolia, O. § H. Extremities thickness of crow- 
quill, terete, striate, glabrous. Leaves elongate linear-lanceolate, 
finely acuminate, tapering below to the narrowly caudate subauricle 
sessile base, minutely denticulate, glabrous, finely tomentose beneath, 
3-5 in. long, $-4 in. broad. Capitula widely campanulate, oo-flowered, 
on short slender unequal glabrous or puberulous pedicels, in terminal 
divaricate corymbs, varying to }-$ ft. diam. Scales of involucre at 
length spreading, } in. long, linear-lanceolate, acuminate, glabrous OF 
nearly so, few outer shorter. Receptacle convex, shallow-foveolate, 
with denticulate margins. Ray obsolete. Achenes glabrous. Pappas 
subrufous.—Hrigeron persicefolivm, Benth. Fl. Nigr. 430. 
Upper Guinea. St. Thomas, Don! Abbeokuta, Irving ! 
14, C. tigrensis. 
. 16. C. Heudelotii. 
2. G. spinosa, Schultz Bip. mss. in Hb. Berol. Closely branched 
spinous shrub, 3-4 ft. high; older branches terete, glabrate, leafless ; 
extremities leafy, terete, puberulous, armed with puberulous forking 
spines. Leaves linear or narrowly spathulate, entire or tridentate, 
strigulose, 3-§ in. long, narrowed below, subamplexicaul. Capitula 
widely campanulate, many-flowered, 4-2 in. wide, on short peduncles, 
few together at the ends of the branches. Scales of involucre linear 
lanceolate, subacute, pauciseriate, appressedly hairy on the back; 
scarious on the margins, about .), in. wide. Receptacle elevated ; 
centre alyeolate, margins toothed. Ray-florets filiform ; ligule 0. An- 
ther-base bidentate ; tip ovate-oblong. Achenes compressed, with few 
scattered hairs or glabrous. Pappus uniseriate, sordid.—Eriger™ 5 As 
~nosus, Schultz Bip. in Schweinf. Fl. Althiop. i. p. 148. 
Wile Land. Abyssinia, 9,000-10,000 ft.-alt. Schim per! 
3. G. Hochstetteri, Schultz Bip. in Hb. Schimp. Abyss. 1. 2 162. 
Stock creeping or prostrate, branched; branches herbaceous, @ 
