A revision of the genus Pteronia (Com/positae) . 305 



November-December, Brige a ! Cape ; between Cape Town and Table 

 Mountain, on the plain, December, BurcheU, 61 ! towards Camp's Bay, 

 October, Bummer, 1995 ! Cape Town, MacOwan ! Pappel Swellendam, 

 Kennedy. Mossel Bay ; between Duyker Biver and Gauritz River, 

 November, BurcheU, 6380! between Little Brak River and Harten- 

 boscb, October, BurcheU, 6208 ! South Africa ; without precise locality, 

 Bowie ! Masson ! Nelson I Niven ! 



Var. Cephalotes, Harv. in Harv. & Sond. I.e. 



Branches and margins of leaves shortly setose but not pilose. — P. 

 cephalotes, Liuu. f. Suppl. 358 ; Thuub. Fl. Cap. ed. Schult, 631 ; DC. 

 Prodr. v. 361. 



Distrib. — Riversdale ; hills near Zoetsmelks River, November, 

 BurcheU, 6792 ! " South Africa," Thunberg ! 



Var. glabra, DC. Prod. v. 361. 



Leaves glabrous or nearly so. — Harv. in Harv. & Sond. Fl. Cap. 

 iii. 103. 



Distrib. — In the Karroo, without ^precise locality, Ecldon andZeyher ! 



28. P. elongata, Thunb. Fl. Cap. ed. Schult. p. 631. 



Branches shortly pubescent ; bark greyish, smooth, becoming 

 rougher with age ; young branchlets short and twiggy. Leaves 

 opposite, not connate at the base, linear, obtuse or subacute, 06-P2 

 cm. long, concave above, strongly keeled beneath, glabrous on both 

 surfaces, with sharp rough cartilaginous teeth on the margin, those 

 subtending the heads scarcely toothed. Heads about 40-flowered, 

 terminal, solitary, sessile, obconic, about 3 cm. long, 15-25 cm. in 

 diameter. Involucral hracts 5-6-seriate, ovate-elliptic, oblong or 

 oblong-linear, obtuse to acute, glabrous, with membranous and some- 

 what jagged margins, especially in the upper half. Receptacle concave, 

 rather narrow. Corolla-tube widened above, slightly bent about the 

 middle, 15 cm. long ; lobes lanceolate, obtuse or subobtuse, 2'5 mm. 

 long. Stamens inserted about the middle of the tube ; filaments 45 

 mm. long ; anthers linear, acute, 5'5 mm. long. Style terete, gradually 

 thickened above, 1*5 cm. long; branches subacute, 5 mm. long, papil- 

 lous on the upper third. Achenes oblong-obovoid, 6 mm. long, with a 

 tufted ring of hairs at the base about 4 mm. long, otherwise glabrous 

 or nearly so. Pappus 1'6 cm. long, yellowish-brown. — DC. Prodr. 

 v. 362 ; Harv. in Harv. & Sond. Fl. Cap. iii. 108. 



Distrib. — From Swellendam along the Coast districts to Port 

 Elizabeth : 



