274 XCII, SCROPHULARIACEE (HEMSLEY AND SKAN). [Aptostmam. 
Lower Guinea. German South-west Africa: Great Namaqualand; Reho- 
both, Fleck, 472, 490; Kces-Riedmond, Pfei/, 140. 
Also in extra-tropical Great Namaqualand. 
2, PELIOSTOMUM, E. Meyer; Benth. et Hook. f. Gen. PI. ii. 927. 
Calyx 5-partite; segments narrow, subvalvate. Corolla-tube 
enlarged above the base into a long throat; limb spreading, 5-fid ; 
lobes flat, subequal, rounded, the 2 upper outside. Stamens 4, didy- 
namous, affixed near the base of the corolla, included; filaments filiform ; 
anthers transverse, ciliate-hispid or more rarely glabrous, 1-celled by 
confiuence, all equally perfect. Style filiform; stigma small, emargl- 
nate. Ovules numerous. Capsule ovoid-oblong, acute or subacute, 
bisuleate, loculicidal and septicidal. Seeds small, striate-rugose ; 
embryo straight or slightly curved ; cotyledons ovate.—Herbs or shrubs 
often viscous. Leaves alternate, quite entire. Flowers sessile or 
shortly stalked, axillary or the upper in a terminal raceme or spike; 
pedicels usually minutely bibracteolate. 
Species 7, all, except the following, natives of extra-tropical South Africa. 
An undershrub, often procumbent at the base; branches 
covered with a whitish corky layer at the base . 1. P. lewcorrhizum. 
A perennial herb, erect; branches without a whitish 
corky layer : : : : 3 : . 2. P. Lugarde. 
1. P, leucorrhizum, Z. Meyer ex Benth. in Bot. Reg. sub t. 1882. 
A rigid much-branched nearly glabrous undershrub 3-12 in. high or 
more, often covered on the bases of the branches, stem and on the 
frequently much-thickened rootstock with a whitish corky layer; 
primary stem erect or procumbent; branches slender, woody at the 
base. Leaves linear-lanceolate, linear-obovate or linear, 13-12 lin. 
long, obtuse, fleshy, glabrous or minutely puberulous. Flowers axillary. 
Peduncles 4—? lin. long; bracts linear, very small. Calyx-segments 
1-1} lin. long, narrowly linear, acute, minutely puberulous or glabrous. 
Corolla sparsely and minutely hairy outside, deep blue; tube about 6 
lin. long, nearly straight, tubular-funnel-shaped, about 2 lin. in diam. 
at the mouth; constricted basal part often longer than the calyx; 
limb slightly oblique; lobes suborbicular, 14-2 lin. in diam. Anthers 
ciliate. Capsule ovoid-oblong, 14-23 lin. long, much longer than the 
calvx, subobtuse or scarcely acute.—Benth. in DC. Prodr. x. 346; Hiern 
in Dyer, Fl. Cap. iv. ii. 135. 
Mozamb. Dist. Transvaal: Mahilas Kop, 2800 ft., Schlechter, 4572 (ex 
Hiern). 
Also in South Africa. 
Var. linearifolium, Weber in Bull. Herb. Boiss. 2me sér. iii. 904. Resembles 
the type in habit and has the whitish corky layer on the bases of the branches. 
Leaves narowly linear, 10-12 (rarely 15) lin. long, glabrous, Calyx-segments 
narrowly linear, 23-8 lin. long. Capsule only slightly longer than the calyx.—f. 
linearifolium, Schinz ex O, Kuntze, Rey. Gen. Pl. iii. ii. 238. 
Lower Guinea. German South-west Africa: Great Namaqualand ; Reho- 
both, Fleck, 155a  Hereroland ; Otyimbingue, Rautanen, 38, Liideritz, 120, 
