FIGURE. Known distribution of Petalidium mannheimerae (black dots; ●) based on specimens in Herbs PRE, PRU, and WIND. Also depicted are the distribution ranges of P. parvifolium (A. blue), P. linifolium (B. green), and P. lucens (C. orange). A black star (★) marks the locality (2220AA) of the lectotype of P. parvifolium (Fleck 548 in Herb. Z+ZT, barcode Z-000000924). A black triangle (▲) indicates the locality (2518DA) of the lectotype of P. parvifolium var. angustifolium (Fleck 520 in Herb. Z+ZR, barcode Z-000033079), considered a synonym of P. linifolium. A black square (■) depicts the locality (2219CB) of the lectotype of P. wilmaniae (Wilman Herb. KMG 1647 in Herb. BOL, barcode BOL138557, #BOL 15287), here considered a synonym of P. parvifolium. in Petalidium mannheimerae (Acanthaceae), a new species from Namibia and South Africa, with notes on the taxonomic identity of P. parvifolium

FIGURE. Known distribution of Petalidium mannheimerae (black dots; ●) based on specimens in Herbs PRE, PRU, and WIND. Also depicted are the distribution ranges of P. parvifolium (A. blue), P. linifolium (B. green), and P. lucens (C. orange). A black star (★) marks the locality (2220AA) of the lectotype of P. parvifolium (Fleck 548 in Herb. Z+ZT, barcode Z-000000924). A black triangle (▲) indicates the locality (2518DA) of the lectotype of P. parvifolium var. angustifolium (Fleck 520 in Herb. Z+ZR, barcode Z-000033079), considered a synonym of P. linifolium. A black square (■) depicts the locality (2219CB) of the lectotype of P. wilmaniae (Wilman Herb. KMG 1647 in Herb. BOL, barcode BOL138557, #BOL 15287), here considered a synonym of P. parvifolium.