A revision of the genus Pteronia (Compositae). 287 



Distrib.— South West Africa : Chamis, Schultze, 433 ! Kuibis, 

 December, Pearson, 8020 ! 



2. P. Eenii, S. Moore in Journ. Linn. Soc. xxxv. 325. 



Branches woolly pubescent. Leaves opposite, linear, obtuse, 1-1*5 

 cm. long, about 1-25 mm. thick, densely woolly pubescent with soft 

 white hairs. Heads solitary, sessile, obconic, 13-15 cm. long, about 

 8 mm. in diameter. Involucral bracts about 4-seriate, lanceolate or 

 linear-lanceolate, acutely spine-tipped, woolly-pubescent outside, tinged 

 with purple. Corolla 7 mm. long, constricted and ribbed at the base 

 for 2 mm., glabrous ; lobes linear-lanceolate, subacute, 1'5 mm. long. 

 Achenes 35 mm. long, densely appressed-villous with white hairs. 

 Pappus 8 mm. long, purple. 



Distrib. — Damaraland ; without precise locality, Een ! 



3. P. incana, DC. Prodr. v. 358. 



A much-branched shrub; branches divaricate, pubescent when 

 young, at length glabrous, with dark-coloured bark. Leaves opposite, 

 linear or spathulate-linear, obtuse, narrowed to and connate at the 

 base, 0-5-1-5 cm. long, 1-2 mm. broad, coriaceous, canous-tomentose. 

 Heads solitary, sessile, about 10-flowered, turbinate, about 15 cm. 

 long and nearly 1 cm. in diameter across the top. Involucral bracts 

 5-6-seriate, the outermost ovate, about 2 mm. long, the innermost 

 oblong-linear, about 8 mm. long, all obtuse, glabrous, with narrowly 

 membranous hyaline margins. Receptacle fimbriate. Corolla 13- 

 1-5 cm. long; tube cylindric in the lower part, slightly expanded in 

 the upper, glabrous ; lobes linear-lanceolate, acute, 3*5-4 mm. long, 

 glabrous. Anthers 4 mm. long, subacute. Achenes compressed, 

 obovate, 5 mm. long, appressed-villous in the lower part, glandular. 

 Pappus nearly white or yellowish white, about 1 cm. long.— Harv. in 

 Harv. & Sond. Fl. Cap. iii. 358 ; Hutchinson in Dot. Mag. t. 8380. 

 P. rigida, Berg. PL Cap. 231 ?. P. xaMholepis, DC. Prodr. v. 358. 



Distr.— From Little Namaqualand through the Karroo to Albany : 

 Little Namaqualand ; near Ookiep, October, Morris in Herb. Bolus, 

 5670! Kaus Mountain near Groedemanskraal, liustbauk and Kook- 

 fontein, Brege a ! near Klippfontein, August, Bolus, 421 ! Khamies- 

 berg, hills at Namaroup, September, Pearson, 6630 ! without precise 

 locality, Scully, 131! Calvinia ; Oorlogs Kloof, Onder Bokkeveld, 

 August, Sehlechter, 10938 ! without precise locality, Johannsen ! 

 Ceres ; between Little Doom Kiver and Great Doom River, Burchell, 

 1212 ! Tulbagh ; Tulbagh Road, September, Sehlechter, 8999 ! Steendal, 



