12 
Transactions of the Royal Society of South Africa. 
10. A. Tysonii, Diimmer, sp. nov. 
Glabra ; caulis a 4 dm. altus, gracilis, subnudus, laxe racemose vel 
paniculato-ramosus, ramis paucis gracilibus nudis laxisque 7'5-12-7 cm. 
longis. Folia leviter chartacea sed rigida, subtus prominule venosa, dentata, 
dentibus angustis creberrimis rigidis 1-2 mm. longis fuscis ; radicalia 5-7, 
rosulata, erecta, petiolata vel subpetiolata, petiolo 8-24 mm. longo com- 
planato ; lamina 4-6"5 cm. longa, l"2-2*5 cm. lata, anguste obovata- 
cuneata, apice rotundata apiculataque, basi angustata ; caulina pauca, 
amplexicaulia, adpressa, parva sed aliquando paucis foliis majoribus basin 
versus. Capitula a 8 mm. diametro. Involucri segmenta 10, insequalia, 
patula, papyracea, apiculata, carinata, majoribus 2 mm, latis. 
Glabrous ; stem about 2 ft. high, slender, subnude, laxly racemosely 
or paniculately branched; branches few, slender and lax, nude, 3-5 in. 
long. Leaves more or less papery but rigid, v^ith the nerves prominent 
on the lower side, closely dentate ; teeth narrow, rigid, f-1 line long. 
Eadical 5-7, rosulate, erect, petiolate or subpetiolate ; petiole -|-1 in. long, 
flattened ; blade 1|— 2|- in. long, f-1 in. broad, narrowly obovate-cuneate, 
rounded or apiculate, tapering to the base ; cauline few, amplexicaul, 
adpressed, acute, the lower occasionally large and narrowly oblong with 
longer teeth. Flower-heads few, about ^ in. in diam. Involucral seg- 
ments 10, unequal, spreading, papery apiculate, keeled ; the 5 larger 
1-lf lin. long, 1 lin. broad. Calyx-teeth minute, acute. Fruit muricately 
ridged. 
South Africa. Griqualand East Div. : On stony slopes about Kokstad, 
4,300-4,500 ft., Tyson, 1465 ! and in Herb. Austr.-Afr., 1275 ! 
Allied to A. Woodii, Oliv., from which it differs in the laxly branched 
inflorescence, the narrow marginal teeth of the leaves, papery apiculate 
involucral segments and acute calyx-teeth. I have pleasure in associating 
this species with Mr. W. Tyson, an eminent South African plant collector 
and algologist. 
11. A. ciLiARis, Delaroche, Eryng. Hist. 19, t. 1 (1808). 
Glabrous, f-l^- ft. high. Stem slender, subnude, terete, and grooved, 
racemosely or paniculately branched;* branches slender, ascending, 
spreading, 1-5 in. in length. Eadical leaves petiolate, seldom many, 
rosulate, subcoriaceous, ascending or spreading ; petiole 1-3|- in. long, 
slender, terete, grooved; blade 1-2 in. long, ^-1 in. broad, oblong to 
oblanceolate or narrowly ovate, rounded, obtuse or apiculate, obliquely 
rounded or cordate at the base, coarsely dentate, crenate-dentate or rarely 
dentate-serrate with two series of bristles, one series terminating the 
teeth, the other series alternating with them, and often inflexed upon the 
* In robust plants the stem may branch from near the base. 
