A revision of the genus Pteronia (Compositae). 297 



the flower-heads. Heads terminal, solitary or often up to 5 in a 

 corymb, well exserted from the leaves, pedunculate, the peduncles 

 bearing smaller leaves, subcampanulate, about l - 5 cm. long 

 and the same in diameter. Involucral bracts about 5-seriate, 

 shorter than the flowers ; the outermost linear or linear-lanceolate, 

 acute, about 3 mm. long ; the intermediate lanceolate, acute, with a 

 distinct keel in the upper half ; the innermost linear-lanceolate, about 

 1 cm. long, acute; all straw-coloured or brownish straw-coloured and 

 shortly and closely ciliate, otherwise glabrous. Receptacle setose and 

 deeply pitted. Corolla yellow, 1 cm. long, gradually widened upwards, 

 very sparingly pubescent ; lobes linear-lanceolate, acute, 2 mm. long. 

 Achenes 3-4 mm. long, flattened, glabrous and shining. Pappus sub- 

 uniseriate, connate into a ring at the base, about 1 cm. long, whitish 

 straw-coloured. — Thunb. PI. Cap. ed. Schult. 629, partly ; Harv. in 

 Harv. & Sond. Fl. Cap. iii. 110, partly ; Lamark 111. t. 667 ; P. aspera, 

 Thunb. Fl. Cap. ed. Schult. 631; P. camphorata, var. aspera, 

 Harv. I.e. ; P. crassifolia, Poir. Encycl. v. 731 ? ; P. camphorata , 

 var. armata Harv. I.e. partly ; P. laricina, Hoult ex DC. Prodr. 

 v. 364. 



Distrib. — Bushmanland to Piquetberg and around the Cape Districts 

 generally, to Bredasdorp : 



Bushmanland ; Beacon Hill, Khamiesberg, 2 miles south-east of 

 Belief ontein, near summit, 5400 ft., January, Pearson, 6354 ! Clan- 

 william ; Oliphant's Eiver Mtns. 600 ft., September, Schlechter, 5112 ! 

 Piquetberg ; stony and rocky mountain places, 1000-2000 ft., June, 

 Dreye a ! Tulbagh ; Pappe ! Malmesbury ; near Groene Kloof, 

 300 ft., November, Bolus, 4286! Hoetjes Bay, 150 ft., September, 

 Bolus, 12705! Cape Peninsula; Kirstenbosch, Zeyher, 4796; 

 Simon's Bay, Wright ! roadsides towards Chapman's Bay, September, 

 Wolley Dod, 1552 ! Bredasdorp ; Zeekoe Vlei, August, Schlechter, 

 8483 ! South Africa ; without precise locality, Pappe ! Zeyher ! 

 Wallich, 809 ! Lindley ! Villette ! 



Var. armata, Harv. I.e., partly. 



Leaves rigidly setose all over the surface. P. camphorata, Drege 

 Zwei Pflanzengeogr. Docum. 75. 



Distrib. — Oliphants River Mountains ; lower slopes of moun- 

 tains behind Farmer's Baths, September, Stephens, 6961 ! Clan- 

 william ; near Honig Vallei and on the Koude Berg, 3000-4000 ft., 

 December, Dri-ge b ! Piquetberg ; near Goedverwacht, October, 

 Bolus, 13564 ! South Africa; without locality, Nice)}, 90 ! Auge\ 



