Pteronia. | COMPOSITA (Harv.) 103 
leaves sheathing at base, the sheath afterwards splitting, linear-semi- 
terete, incurved, obtuse ; heads 3-flowered, densely corymbose, pedicel- 
late, about 3 on every pedicel ; invol. cylindrical, glabrous, shorter than 
disc, scales oblong, obtuse; achenes hairy. JP. flexicaulis, DC. Ll. c, 360. 
P. fastigiata, Zey. 
Van. 8, fastigiata; leaves closely set, 3-5 lines long ; heads sessile, mostly in 
threes, 3-5-flowered ; invol. scales ovate-oblong, subacute. P. fasligiata, Thunb./ 
Cap. p. 629. : 
Has. Carroo, Thunb./ Underbokkeveld and Zeederbergen, Drege’ Elandsherg, 
Wallich! Namaqualand, Rev. H. Whitehead! Swell., Vit., &e. £. § Z./ Slaay 
Burke § Zey./ (Herb. Th., D., Hk., Sd.) 
Very much branched, scrubby, with incurved branches, twigs and leaves, Leaves 
3-1} inch long, their sheath, after splitting, forming a membranous base, broader 
than the lamina. Heads yellow, densely corymbose, fastigiate. Var. 8. has much 
shorter and more closely set leaves, and somewhat larger and less corymbose heads; 
varying in this respect as P. baccharoides more notably does: I have only seen it in 
Herb, Thunb.! 
22. P. fasciculata (Linn. f. Suppl. 357); glabrous, viscid above ; 
leaves opposite, shortly connate at base (the sheath at length splitting), 
narrow-lanceolate, acute or acuminate, viscid, concave above, keeled 
beneath, densely set, scabrous-edged; heads numerous, one-flowered, 
densely tufted at the ends of the branches, sessile; invol. linear, compressed, 
glabrous, scales lanceolate, acute. DC.l.c. 360. Th./ Cap. 630. Henan- 
thus fasciculatus, Less. Syn. 195. 
Has. Carroo near Hexriver, Thund./ Gauritz R., E. ¢ Z./ Zeederbergen, Drege/ 
(Herb. Th., D., Hk., Sd.) 
A strong growing bush, 1-2 feet high. Branches naked below, very closely 
covered with leaves above. ‘Leaves 1-14 inch long, 2 lines wide, their short sheath 
on bursting forming a broad, membranous base to the leaf. The dense tuft of yellow 
flower-heads is 1-14 inch diameter. 
Sect. 2. Pachyderis. Heads many-fl. Recept. honeycombed. Achenes compressed 
(the outer sometimes 3-cornered), tapering into a short, thick, glabrous neck (which 
s often peg by the copious hairs of the lower portion), sometimes quite glabrous. 
(Sp. 23-5 
23, P. hirsuta (Linn. f. Suppl. 356); branches scabrous; hispid or 
pilose (rarely glabrous); leaves opposite, linear-lanceolate, somewhat 
keeled, acute, rigidly ciliate (or smooth), scabrous or pilose beneath ; 
heads terminal, sessile, solitary, ovoid, many-flowered ; invol. glabrous 
or pilose, viscid ; scales broadly ovate or oblong, the inner longer, 
membranous at edge, ciliolate, and often curled. P. retorta, Linn. f. 
Suppl. 356. 
Var. a. vera; stems and undersides of leaves very rough with long, white hairs. 
P. hirsuta, L. -DC.1.¢.p. 360. Th. Cap. 681. Zey.!/ 815. 
‘Wan. 8. Cephalotes; stems and undersides of leaves very rough with rigid points, 
but not pilose. Pt. Cephalotes, Linn. f. DC. 1. c. 361. Thund. p. 631. Zey.! 2775. Pt. 
_pseudo-cephalotes, Less.} 
Van. y. glabra (DC.); branches glabrous; leaves without cilia, folded or flat, 
glabrous on both sides. DC, 1. c. 361. 
Has. Districts of Cape, Stellenb., Tulbagh, Worcester, Clanw., and Swellendam, 
Th., E. § Z., Drege, &c-; var. 8. the common form, round Capetown; var. y. in the 
Karroo, Z. § Z./ (Herb. Th., D., Sd., Hk., &c.) 
A rigid, usually very rough, much-branched, small shrub, 12-18 inches high, 
