A revision of the genus Pteronia (Gompositae). 299 



coloured margins. Pappus about 8 mm. long, 1-seriate, straw-coloured, 

 the setae shortly pilose and connate into a ring at the base. — DC. 

 Prodr. v. 364 ; Drege, Zwei Pflanzengeogr. Docum. 64. P. chryso- 

 comifolia, Poir. Encycl. v. 732. P. camphorata, var. stricta, Harv, in 

 Harv. & Sond. Fl, Cap. iii. 110. 



Distrib. — Robertson to G-eorge and Prince Albert : Robertson ; 

 Outeniqua Mtns., Robertson Pass, Hops, 67 ! Swellendam, Mund ! 

 G-eorge; Oliphant's River, Gill ! Lange Kloof, Zeyher, 257 ! Prince 

 Albert ; Great Zwartbergen Range, 3000-4000 ft., August, Drege a ! 

 c. 4050 ft,, November, Marloth, 2475 ! c. 5000 ft., December, Bohis 

 11522 ! South Africa; without precise locality, Thunberg ! 



Var. longifolia, Phillips, var. nov. 



Leaves up to 4.5 cm. long. 



Distrib. — Prince Albert ; stony places at summit of the Zwartberg 

 Pass, c. 5000 ft., December, Bolus, 11523 ! 



In appearance this is very similar to P. camphorata, var. longifolia, 

 but can at once be distinguished from it by the tailed-acuminate inner 

 involucral bracts, which are not ciliated. 



20. P. onobromoides, DC. Prodr. v. 364. 



A bush 1-3 ft high ; branches glabrous, with smooth light-coloured 

 bark. Leaves alternate, linear or broadly linear, obtuse or subacute, 

 truncate at the base, 2-4 cm. long, 3-5 mm. broad, flat or concave 

 above, distinctly 1-nerved beneath, glabrous and wrinkled when dry, 

 closely pectinate-setose on the margins with acute ivory-white teeth. 

 Heads solitary, terminal, sessile, numerous-flowered, campanulate, 

 3*5 cm. long, about l - 5-25 cm. in diameter. Receptacle about 8 mm. 

 broad, slightly concave, honeycombed and fimbriate. Involucral bracts 

 about 7-seriate ; the outermost ovate, about 8 mm. long ; the others 

 gradually becoming narrower ; the innermost linear-oblong, obtuse or 

 truncate at the apex, glabrous, chaffy-coriaceous. Corolla 2 cm. long, 

 with a slender ribbed tube, glabrous ; lobes linear-lanceolate, acute, 

 35 mm. long. Achenes compressed, oblanceolate, 7 mm. long, covered 

 with golden glands, not hairy. Pappus 15 cm. long, brownish-yellow 

 —Harv. in Harv. & Sond. Fl. Cap. iii. 10.'. 



Distrib. — Little Namaqualand to St. Helena Bay, Piquetberg : 

 Little Namaqualand ; Port Nolloth, sandy flats near the coast, Ather- 

 stone, 6 ! Among bushes near Oograbies Poort, September, Bolus, 

 8349 ! Port Nolloth, January, Galpin and Pearson, 7651 ! without 

 precise locality, EcMon and Zeyher (ex Harv.) Scully, 220 ! Van- 



