Plate 67. 



HAEVEYA squamosa. 



Cape Province, Natal, Little Namaqualand. 



Scrophulariaceae. Tribe Gerardieae. 

 Harveya, Hook. ; Benth. et ffoolc.f. Gen. Plant, vol. ii. p. 967. 



Harveya squamosa, Steud. Nomencl. Bot. ed. 2, i. 723 ; Fl. Cap. iv. sect. 2, 



p. 413. 



The Genus Harveya contains 27 species, all of which are 

 parasitic on the roots of other plants. In South Africa 21 

 species are recorded, the remainder being found in Tropical 

 Africa and the Mascarene Islands. The name was given by 

 Sir William Hooker in commemoration of Dr. Harvey, who 

 was one of the pioneers of South African systematic botany. 

 The plant belongs to a group known as total parasites, i.e. it is 

 wholly dependent on its host for its food supply. Specialised 

 roots technically known as " haustoria " penetrate the roots 

 of the host plant and absorb the requisite food material. 



The species here figured occurs in the Cape Peninsula, all 

 along the western coastal districts to Clanwilliam and Van 

 Ehynsdorp and into Little Namaqualand. It has also been 

 recorded from the sand-dunes near Durban in Natal. The 

 specimens from which our plate was prepared were collected 

 by Mrs. E. Rood at Van Rhynsdorp, and are preserved in the 

 National Herbarium, Pretoria (Herb. No. 1456). 



Desceiption :— A herbaceous plant about 13 cm. high. 

 Scale leaves 8 mm. long, 1 cm. broad, ovate, acuminate, 

 pubescent without. Inflorescence racemose, densely many- 

 flowered, 2*5 cm. in diameter, more or less cylindric ; axis 

 1 cm. in diameter near base, narrowing upwards. Bracts 

 1-2 cm. long, '5-9 cm. broad, oblong or obovate-spathulate, 

 obtuse, glandular pilose without; bracteoles 2, opposite at 

 base of the calyx, 3 cm. long, 1*5 mm. broad, linear, glandular- 

 pilose. Pedicels 1 cm. long, fleshy. Calyx-tube 2*5 cm. long, 

 7 mm. in diameter, tubular, glandular-pilose without, glabrous 



