426 COMPOSITE (Harv.) [ Tripteris. 
seriate, linear, submarginate, shorter than disc; rays about 10, four times 
longer than the inv., yellow; mature achenes unknown.” DC. 1. ¢. 
Has, Olifants R., Drege. (Unknown to me.) 
Said to differ from 7. glabrata by its narrower, more-linear leaves, yellow, not 
orange rays, and narrower inv. scales. 
3. T. Thomii (Harv.); shrubby, oppositely branched, thinly gland- 
pubescent ; leaves opposite, linear-spathulate, tapering to the base, 
obtuse, mucronulate, thickish, quite entire; heads ending the branches; 
inv. sc. uniseriate, linear, white-edged, slightly scabrid; achenes? 
Has. Cape, Dr. Thom! (Herb. Hk.) 
A ligneous, much-branched shrub. Leaves 1 in. long, 2-3 1. wide, perhaps a little 
fleshy when recent. Rays 8-10, yellow. 
4. T. sinuata(DC.1.c.456); shrubby, oppositely branched, minutely 
powdery-pubescent, glaucous; leaves opposite, oblong or lanceolate, 
tapering at base, subobtuse, sinuate-toothed ; heads on terminal pedun- 
cles; inv. sc. sub-biseriate, powdery-scabrid at back, lanceolate, mem- 
brane-edged, rather longer than the disc; achenes smooth, amply 3- 
winged. 
Has. Namaqualand, and betw. Zwarteberg and Aasvogelberg ; and Driekoppen, 
Karroo, Drege! Graaf Reynet, Eckl.! Bitterfontein, Zey/ 1023, Kareeberge, E. § 2./ 
Dwyca R., Zey ! 1022. (Herb. Hk., Sd.) . 
A small, rigid shrub. Leaves 1-14 in. long, 3-41. wide, variable in shape and 
amount of toothing. Rays yellow. Heads at length nodding. 
5. T. linearis (Harv.); shrubby, oppositely branched, minutely and 
thinly viscoso-puberulous ; leaves opposite, narrow-linear, acute, entire or 
here and there denticulate, thick and somewhat fleshy, nerveless ; pedunc. 
terminal, one-headed, powdery-puberulous; inv. scales lanceolate, pow- 
dery-scabrid at back, margined; achenes? Osteosp. No. 162, Hb. Eckl. 
Has. Cape, Ecklon! (Herb. Sond.) 
This is nearest 7. sinuata, but differs in foliage. Leaves }-1 in. long, }-line diam. 
Pedune. 2-3 in. long. FI. yellow. 
6. T.incana (Harv.); shrubby, the young partscanous with very minute, 
close-lying pubescence ; branches slender, rodlike, striate, mostly oppo- 
site; leaves opposite, sessile, linear, thickish, nerveless, mucronulate, 
slightly concave above ; pedicels terminal, nodding ; inv. sc. linear, acute, 
canous, uniseriate; achenes? Osteosp. incanum, Th.! Cap. 714. 
Has. Bokkeveld Karroo, Thunberg/ (Herb. Th.) 
1-2 ft. high, ligneous, much branched; branches decussate, 10-12 in. long, with 
distant leaf-pairs, simple. Leaves 3—1 in. long, 1-1. wide, erect. Mature fi.-heads 
unknown. This has so many characters in common with the opposite-leaved sp. of 
Tripteris, that, though the fruit be unknown, I venture to place it among them. 
§ 2. Ricmpxz. (Sp. 7-9.) 
7. T. rigida (Harv.); herbaceous, rigid; stem quite glabrous, terete, 
smooth, erect, branching and panicled upwards; lower and medial leaves 
opposite, very rigid, lanceolate, acute, tapering somewhat at base, sharply 
_ 3-nerved above the base, papillato-scabrid on both sides with 
‘Taised points, but not pubescent; upper leaves alternate, small, 
