Plaids Collected in the Percy Sladen Memorial Expeditions. 391 



Upper Region: Karieboemfontein, near stream, 4986; flat sandy 

 ground between Calvinia and Holle River, 2500 ft., 3969; by side of 

 Wagon track, Holle River, 2700 ft., 3971. 



Little Namaqualand : Among Arundo in pool at Brakwater, 6072. 



Distribution. — Western districts from Capetown to Namaqualand. 



4. P. dichotoma, DC. Prodr. vi. 138; Hutchinson in Kew Bull. 1910. 

 246. 



Little Namaqualand: Vaarsche Rivier, dry stony hills, 6505. 

 Distribution. — Namaqualand and Vanrhynsdorp. 



5. P. incana, O. Kuntze, Rev. Gen. iii. ii. 166. 



Khamiesberg: Twee Rivieren, very common near summit of hills 

 cast of Settlement, bush 1^-2 ft. high, 6598. 



Little Namaqualand: Pass south of Klipplaat, 1700 ft., shrub 1 ft. 

 high, 3484. 



Karoo : Near Nieuwefontein, aromatic bush 2 ft. high, Us. yellow, 

 3348. Without locality, 4221. 



Distribution. — General, excepting the extreme south-wesf. 



6. Pentzia argentea, Hutchinson, sp. nov. (fig. 5) ; aflinis P minor, 

 Burchell, sed folds minoribus flabellato-lobatis et nervosis facile dis- 

 tinguenda. 



Frutex multiramosus usque ad 0*75 m. altus ; ramuli laterales 

 plerumque breves, dense foliati, terminales longiores laxe foliati, pilis 

 albidis dense adpresse tomentelli. Folia obtriangulari-flabellata, basi 

 inpetiolum brevem attenuata, usque ad 1 cm.longa, 5-7 mm. lata, firme 

 chartacea, flabellatim 7-9-lobulata, nervosa, utrinque dense adpresse 

 argenteo-tomentella et nigro-punetata, lobulis ovato-oblongis obtusis- 

 simis. Capitula terminalia, longe pedunculata ; pedunculi usque ad 

 15 cm. longi, basin versus parce foliati, conspicue sulcati, adpresse 

 puberuli. Tnvolucra depresso-hemisphaerica, 1 cm.diametro; bracteae 

 numerosae, lineari-oblongae, apice et apicem versus membranaceae et 

 hyalinae, circiter mm. longae, adpresse pubeseentes et parce nigro- 

 punctatae. Flare* omnes tubulosi, numerosissimi ; corollae tubus 

 crassus, 1"5 mm. longus, glaber ; lobi ovati, obtusi ; achaenia acute 

 quadrangularia, 2 mm. longa, glabra; pappus obliquus, tubulosus, 

 membranaceus, dentatus, 1 mm. longus. 



Bushmanland: Stony ground, Groot Rozynbosch, 2800 ft,, bush 

 }-\ ft., fls. yellow, Pearson, 3832. 



Great Namaqualand : Common in rock crevices between Dabaigabis 

 and Griindoorn, 4200 ft., bush ! 2 ft., tls. yellow, Pearson, 3170; base 

 of kopje 20 km. North of Raman's Drift, 2400 ft.. Pearson, 4529. 



