A revision of the genus Pteronia (Compositae). 313 



November, Zeyher, 2772 ! Ecklon and Zenker, 404 ! 814 ! Uitenliage, 

 Alexander ! foot of Elandsberg, Wallich '. Port Elizabeth ; Redhouse, 

 November, Mrs. Paterson, 925 ! West, 208 ! Alexandria; near Coerney 

 Station, January, Bolus ! along the Bushman's River by Rautenbach's 

 Drift, November, Burchell, 4209 ! Albany ; Hounslow Farm, near 

 Grahamstown, August, Galpin, 159a ! Slaag Kraal, Burke ! South 

 Africa; without precise locality, Zeyher, 814! Mund ! Thorn. 252 ! 



39. P.fastigiata, Thunb. PI. Cap. ed. Schult. 629. 



Branches finely spinulose with the appressed persistent bases of the 

 connective between the leaf-liases, glabrous. Leaves opposite, connate 

 and sheathing at the base for about 3 mm., ericoid, rounded at the 

 apex, convex below, concave above, 3-5 mm. long, slightly curved, 

 fleshy, glabrous. Heads 4-flowered, solitary or rarely in pairs or 

 threes, narrowly cylindric, P2-15 cm. long, 4-5 mm. in diameter 

 across the middle. Involucral bracts 6-7-seriate ; the outermost ovate- 

 triangular, about 15 mm. long ; the innermost linear-lanceolate, about 

 1 cm. long, all subacute and greenish when dry, shortly and rather 

 densely ciliate. Receptacle very small. Corolla 1 cm. long, gradually 

 widened upwards, glabrous ; lobes linear-lanceolate, 4 mm. long. 

 Anthers not exsertei beyond the tips of the corolla lobes. Achenes 

 3 mm. long, densely appressed-villous. Pappus straw-coloured, 8 mm 

 long. — P. paniculata var. fastigiata, Harv. in Harv. & Sond. PI. Cap. 

 iii, 103 ; P. decumbens, Banks ex S. Moore in Journ. Bot. 1900, 156. 



Distrib. — Little Namaqualand ; 15 miles north of Alewyns Fonteiu, 

 3200 ft., December, Pearson, 3925 ! near Nieuwefontein, December, 

 Pearson, 3349! near Daunabis, December, Pearson, 6119! Worcester; 

 in plain near Touw's River Railway Station, December, Bolus, 7439 ; 

 South Africa ; without locality, Thunberg ! 



40. P. cylindracea, DC. Prodr. v. 363. 



Branches covered with grey glabrous bark ; young branchlets rather 

 densely leafy, slender, glabrous. Leaves clustered or the upper ones 

 scattered, opposite, free from each other at the base, ericoid, flat or 

 grooved above, semiterete below, with recurved hooked tips, 5-6 mm. 

 long, 1 mm. thick, fleshy, glabrous, sometimes viscid. Heads about 

 5-flowered, elongated, cylindric, 2-2*5 cm. long, about 6 mm. in 

 diameter. Involucral bracts slightly increasing in length upwards, 

 about 7-seriate ; the outermost oblong orbicular, closely imbricate, 

 about 5 mm. long ; the innermost linear-oblong, 1*5 cm. long, 4 mm. 

 broad, all chaffy-membranous, straw-coloured, glabrous, with very 

 thin jagged margins. Receptacle very small. Corolla l - 3 cm. long, 



