104 COMPOSIT& (Harv.) [ Pteronia 
variabl cent. Leaves closely placed, 5~7 lines long, 1-2 lines wide, thick and 
stiff. Heads 1-14 inch long, 4 inch diameter. Flowers pwrple, the corollas curved 
outwards. Except in pubescence, which varies much in different specimens, T cannot 
distinguish P. Cephalotes from P. hirsuta. P. pseudo-Cephalotes, Less.! is founded 
on a specimen in Herb. Thunb., having the characters of var. 8., with the invol. scales 
remarkably fimbriate and curled; I find this character occasionally in the other 
varieties. 
24. P. undulata (DC. 1. c. 361); twigs and foliage very minutely 
glanduloso-pulverulent, scaberulous ; leaves opposite, tapering at base 
into a petiole, oval or oblong, obtuse, wavy and curled ; heads pedicellate, 
from the upper axils, corymbose at the ends of the branches, 4-5- 
flowered ; invol.-scales erect, oblong, glabrous, entire, obtuse, with a 
narrow membr. margin ; achenes thinly villous. 
Has. Zilverfontein, Little Namaqualand, Drege! (Herb. D., Hk., Sd.) — 
A slender shrub, with opposite, erect branches, and remarkably curled, glandular 
foliage. Leaves 7-8 lines long, 3-41. wide. Pedicels 4-1 inch long ; heads 3, 5, 
7, &c. in a corymb, small. 
25. P. ovalifolia (DC. 1. c. 361); twigs cobwebby, becoming gla- 
brous; leaves opposite, ellipt.-oblong or oval, sessile, obtuse, very entire, 
tomentose-canescent with appressed, woolly hairs, the older ones be- 
coming almost nude ; heads oval-oblong, sessile, solitary, many-flowered; 
invol.-scales cobwebbed, appressed, ovate or oblong, the inner with a 
narrowish, membranous margin, ciliolate ; achenes silky villous. 
Has, Olifant’s R., Drege! Worcester, E.Z. (Herb. D., Hk., Sd.) _ 
A slender shrub, with opposite brachiate twigs. lLeaf-pairs subdistant. Leaves 
8-10 lines long, 3-4 lines wide, leathery. Heads 1} in. long, 4 inch diam. FIL 
yellow. Habit of P. cinerea, but with larger and more distant leaves, larger heads, Ke. 
26. P. scariosa (Linn. f. Suppl. 356); divaricately much-branched; 
rigid, at length spinescent, glabrous; leaves opposite, or the upper 
alternate, subsessile, oval or oval-oblong, obtuse, thick, nerveless, gla- 
brous ; heads terminal, solitary, sessile, oblong, many-fl. ; invol.-scales 
loosely imbricated, broadly ovate, with a very wide, membranous, lace- 
rate margin and an opaque ovato-lanceolate, pungent-mucronate middle. 
Thunb.! Cap. 633. DC. 1. c. 361. 
Has. Near Hantum, Thunberg/ Betw. Koussia and Pedroskloof, and at Zilver- 
fontyn, Drege/ (Herb. Th., Sd., Hk., D.) 
A robust, scrubby bush, very rigid. Leaves 14-24 lines long, 1-14 line wide, 
acute at base or sub-petiolate. Heads 9-10 lines long, 4-5 1, wide, Inv. very 
membranous, shining. 
27. P. membranacea (Linn. f. Suppl. 357); twigs and foliage 
minutely pulverulent-canescent ; leaves opposite, sessile, crowded, linear- 
oblong or linear, acute; heads terminal, solitary, sessile, campanulate, 
many-flowered ; invol. glabrous, scales oblong, with a lanceolate, opaque 
middle, and a very wide, membranous, pellucid, lacerate margin. Zh. / 
Cap. p.633. DC.1. ¢. 361. 
Has. The Karroo, Thunb.! Mundt. About the Zwartkops and K Rs., Uit. 
E.§ Zt Boschesmans Riv, and Zuureberge, Drege / Sonnetabiiag ose R, Zonder 
Kiende, Zey.! 2773. (Herb. Th., D., Hk., Sd.) 
prises bees beets, thinly pulverulent shrub, 1-2 f. high. soci 
s Bavttes 2 hes loons 
not inthe atvend Hye 
