^2 xcviii. ACANTiiACE.E (clarke). [Petalidium. 



12. P. mpestre, S. 3foo7'e in Journ. Bot. 1880, 22G, 228. Shrub 

 2-8 ft. high ; innovations moderately pubescent and glandular. Leaves 

 J in. long, roundish, ultimately nearly glabrous; petiole \ in. long, 

 Inflorescence in lax 3-10-flowered heads often near the base of the stem 

 interspersed with short infertile branches carrying linear- oblong bracts 

 J-J in. long ; pedicels and base of bracteoles with long spreading white 

 hairs ; bracts |-J in. long, linear-oblong ; bracteoles §-f in. long, ovate- 

 oblong, finally reticulate-nerved and glabrescent. Calyx nearly J in. 

 long ; 2 anticous segments connate § their length. Corolla white, some- 

 times rose- or purple-striate ; tube h, in. long or more, funnel-shaped at 

 the top; lobes 5 nearly equal. Filaments nearly glabrous; anthers 

 with small tails. Style very thinly hairy ; branches 2, equal. Capsule 

 \ in. long. — Pseudoharleria rupestris, Lindau in Engl. & Prantl, 

 PQanzenfam. iv. 3B. 300. 



Ziower Guinea. Angola : Mossaraedes, Welwitsch, 5022 ! Chella Mountains, 

 Johnston ! 



o. 



P. glutinosum, C. B. Clarke. Shrub ?> ft. high (Engler), 

 clothed with short white gland-tipped hairs and longer several-celled 

 white hairs. Leaves Ij by l\ in., tip triangular apiculate ; petiole up 

 to I in. long. Inflorescences laxly few-flowered in the upper part of 

 the stem, about 1 in. in diam. with a few short sterile branches inter- 

 spersed ; bracteoles f in. long, elliptic, subacute. Calyx J in. long, with 

 simple suberect short hairs all over; two anticous segments connate 

 j their length. Corolla dusky orange {Eiigler) ; tube J in. long, funnel- 

 shaped upwards. Anthers mucronate at the base. Capsule \ in. long. — 

 Pseudoharleria glutinosa, Engl, in Engl. Jahrb. x. 259 ; Lindau in Engl. 

 Jahrb. xviii. 63, t. 1, fig. 13, and in Engl. & Prantl, Pflanzenfam. iv. 3B. 

 300. 



Xiower Guinea. German South West Africa : Hereroland ; Usakos, 2800 ft., 

 Marlothy 1435 ! 



l-i. P. variabile, C. B. Clarke. Minutely puberulous and yellowish - 

 green, or densely adpressed ashy-hairy all over. Leaves 1 by |-§ in., 

 obtuse; petiole J in. long. Spikes rather lax, 0-10-flowered, with few 

 short sterile branches, hardly spinous; bracts \ in. long, lanceolate, 

 obtuse ; bracteoles | in. long. Sepals about as long as the bracteoles. 

 Corolla-tube -J in. long ; anticous lobe of limb \ in. broad, nearly twice 

 as wide as the others. — Pseudoharleria variahilis, Engl, in Engl. Jahrb. 

 X. 259, var. included; Lindau in Engl. & Prantl, Pflanzenfam. iv. 

 3B. 300. 



Xiower Guinea. German South West Africa : Hereroland ; Usakos, 3000 ft., 

 Marloth, 1242 ! 1242b ! Luderitz ! 



15. P. canescensy C. B. Clarke. Small undershrub ; innovations 

 densely strigose with minute simple white hairs. Leaves 2 by 1| in., 

 nearly round, ultimately glabrescent, tip minutely triangular ; petiole 

 up to 1 in. long. Inflorescence 2 in. in diam., compound, dense, many- 

 flowered, near the base of a branch, with barren short branches inter- 



