A revision of the genus Pteronia {Compositae). 289 



widened upwards, slightly ribbed, glabrous ; lobes lanceolate, 3 mm. 

 long. Anthers not exserted beyond the tips of the lobes. Achenes 

 5 mm. long, appressed silky-villous in the lower part. Pappus about 

 9 mm. long, brownish yellow. 



Distrib. — Graaff Eeinet ; near Graaff Eeinet, October, Bolus, 745 '. 



5. P. glauca, Thunb. Prodr. 144. 



A small bush 1-2 ft. high, usually trichotomously branched above ; 

 branches canous-pubescent ; bark at first smooth, at length splitting. 

 Leaves opposite, lanceolate or linear-lanceolate, obtuse or subacute. 

 4-10 mm. long, 2-25 mm. broad, canous-tomentose. Heads 

 4-fiowered, terminal, solitary, turbinate, 1*2— 1"5 cm. long, about 8 mm. 

 in diameter across the top. Involucral bracts 5-6-seriate, the outer- 

 most ovate-lanceolate or oblong-lanceolate, 3 mm. long, the innermost 

 oblong- lanceolate, all subacute, with membranous margins, a distinct 

 midrib and a band of canous hairs up the middle. Receptacle fimbri- 

 ate. Corolla 1 cm. long ; tube ribbed below, widened above ; lobes 

 1*5 mm. long, triangular-ovate, obtuse. Achenes 3 mm. long, obovate, 

 much contracted at the top, villous from the lower half. Pappu* 

 straw-coloured, 1 cm. long. — Thunb. Fl. Cap. ed. Schult. 632 ; DC. 

 Prodr. v. 36. Harv. in Harv. & Sond. Fl. Cap. hi. 107. P. glabrata, 

 DC. Prodr. v. 362, not of Linn. f. P. Candollei, Harv. in Harv. & 

 Sond. Fl. Cap. iii. 105. P. latisquama, DC. Prodr. v. 363 ; Drege, 

 Zwei Pflanzengeogr. Docum. 65, 69. P. thymifolia, Muschler iu 

 Engl. Bot. Jahrb. xlvi. 100. 



Distrib. — Great Namaqualand to Vanrhynsdorp and through the 

 Upper Region to Middleburg : 



Great Namaqualand ; Farm Hoffnung, 5000 ft., August, Binter 

 967 ! Vanrhynsdorp ; Bushman's Karroo, 3000-4000 ft., November. 

 />/<;/'' a! Calvinia ; between Calvinia and Holle River, December, 

 Pearson, 3967 ! Kopjes between Klipplaat and Bitterfontein, Pearson, 

 3070 ! Fraserburg ; between Karree River and Klein Quaggas Fontein, 

 Burchell, 141 ! Willowmore ; Aasvogel Berg, 2000 ft., August, Brege 

 b! Carnarvon; Karel Kriegers grave, Burchell, 1589 ! Hanover,- near 

 Naauwpoort, Beenon, 17! Sutherland; near Wilgenboschfontein. 

 Roggeveldt, Worsdell ! Murraysburg ; near the town, September, 

 Tyson, 204 ! Banks in Herb. Bolus ! Middleburg ; Conway Farm, 

 3600 ft., August, Gilfillan in Herb. Galpin, 5528 ! 



6. P. cinerea, Linn f. Suppl. 356. 



A small shrub often growing amongst rocks ; branches softly 

 canous-pubescent when young, at length glabrous. Leaves opposite, 



