102 composITZ& (Harv.) [ Pteronia. 
A slender, small and pale, or glaucous shrub. Leaves 4-5 or 6 lines long, scarcely 
1 line wide, somewhat channelled and bluntly keeled. Heads pale straw-colour, dry. 
The “P. gymnocline” of Drege, so far as I have seen, belongs to “P. lucilioides.” 
17, P. ciliata (Thunb.! Cap. 632); glabrous, much-branched, rigid; 
leaves opposite (but not connate), crowded at the ends of the twigs, 
oblong, oblong-linear or linear, rigid, thick, with a broad and promi- 
nent keel-like rib, very entire, glaucous ; heads terminal, solitary, 
elliptic ; inv. scales closely imbricating, glossy, broadly oblong, obtuse, 
rigid, fringed with soft hairs; achenes densely hairy. DC. l. ¢. 359. 
Var. a, Thunbergii; leaves linear-trigonous, 4-6 lines long. 
Var. 8. Ecklonis; leaves oblong, 14—2 lines long, 1 line wide. 
Has. Namaqualand, Z. § Z./ Olifantsriver, Drege’ (Herb. Sd., D., Th.) 
A small scrubby, intricately-branched bush. Leaves separate at base, spreading. 
Heads 7-8 lines long, 3-4 in diameter, the outer scales brownish or greenish. Invol. 
shorter than the disc. 2. ¢ Z.’s plant has much shorter and proportionably broader 
leaves than Thunberg’s, but variably so ; in other respects the plants agree, 
18. P. suceulenta (Thunb.! Cap. 630); glabrous, much-branched ; 
leaves opposite, linear-trigonous, fleshy, subacute, spreading or recurved ; 
heads terminal, campanulate, many-flowered ; invol. rarely as long as 
disc, scales broadly ovate, very obtuse, dry, entire, membrane-edged ; 
achenes densely hairy. DC. 1. ¢. 360. 
Has. Carroo and Hantum, Th./ Olifantriver, Drege! (Herb. Th., D., Hk., Sd.) 
Leaves granulated when dry, 4 lines to an inch long. Heads } inch long, 4-5 
lines diameter. Fl. yellow. Branches of style much protruded, the stig 
and hispid. Invol. scales nerveless, with a linear gland beneath the apex. 
19. P. glabrata (Linn. f. Suppl. 358) ; glabrous, much-branched ; 
leaves opposite, broadly linear, fat, thickish, obtuse (or acute), 1-nerved, 
spreading ; heads terminal, campanulate, many-flowered ; invol. scarcely 
as long as disc, scales broadly ovate or oblong, very obtuse, dry, many- 
- Spi “gare oa entire. Thunb. / Cap. 630. P.sesuviifolia, DC. ! 
356. 
long 
Has. Carroo, below Bockland, Thunb.’ Kaus and Olifants river, Drege’ Heere- 
logement, Clanw., #. ¢ Z.! (Herb. Th., D., Hk., Sd.) 
Very near P. succulenta, but with flat more or less nerved leaves, and the invol. 
scales marked with several longitudinal, coloured lines. Leaves 1-1} inch long, 
a? lines wide. Fl. yellow. Perhaps merely a more luxuriant state of P. succu- 
20. P. flexicaulis (Linn. f. Suppl. 355); glabrous, very viscid abové; 
young leaves sheathing at base, the sheath afterwards splitting, linear-- 
filiform, channelled above, incurved, obtuse; heads 15~25-flowered, 
solitary or in threes at the ends of the branches, subsessile ; inv. oblong, 
viscid, nearly equalling the disc, scales appressed, obtuse, the outer 
oval, the inner oblong. Th./ Cap. 629. Pt. connata, DC. l. ¢. 360. 
Has. Carroo, Thunb.! Swellend. ‘ . § i a 
Baz agg Agger rere Dr. Thom, EB. § Z./ in the Karroo, Drege, — 
has nearly the habit and foli . : A 
rescence. It is ake eee. e of the following, but a very different inflo 
21. P, paniculata (Th.! Cap. 629); glabrous, viscid above ; young 
