Osteospermum.] LXXiii. cOMPOSiTiE (oliver and hiern). 425 



88. OSTEOSPERMUM, Linn.; Benth. et Hook.f. Gen. PI. ii. p. 455. 



Capitula heterogamous, radiate ; ray-florets female fertile in one 

 row ; disk-florets hermaphrodite sterile. Involucre campanulate in 

 flower, hemispherical in fruit ; bracts in about 2 rows, subequal. Re- 

 ceptacle slightly convex, nearly flat, small, naked. Corollas of the ray 

 ligulate ; ligule spreading, oval-oblong, tridentate or subentire at the 

 tip ; corollas of the disk regular, tubular, funnel-shaped, shortly 5- 

 cleft. Anthers appendaged at the apex, obtuse or mucronulate, not 

 tailed at the base. Style of the ray-florets bidentate at the tip, of the 

 disk-florets ending in a slightly enlarged entire globose stigmatic apex. 

 Achenes of the ray at length thick, turbinate, somewhat incurved, hard, 

 sabterete, obscurely trigonous and somewhat ribbed. Pappus or a 

 mere ring at the top of the achenes. — Undershrubs or rigid herbs with 

 alternate (rarely opposite) leaves and yellow flowers. 

 A genus of about 38 species mostly confined to the Cape or Natal. 



1. O. muricatuxn, E. Mey. ex DG. Prodr. vi. p. 464. Somewhat 

 shrubby, 6-12 in. high. Branches pale and glabrescent below, glan- 

 dular-scabrid and leafy aboVe. Leaves linear or linear-oblong, pinna- 

 tifidly toothed, ascending, glandular- scabrid, sessile, rather clasping, not 

 auriculate at the base, -J-l in. long, gradually shorter and more entire 

 upwards, teeth and apex apiculate. Capitula solitary, terminating the 

 branches which are leafy nearly to the top. Involucre ^ in. long ; 

 bracts about 8-9, lanceolate, acute, glandular-puberulous and green on 

 the back, scarious-ciliate on the margins. Ray-florets 10-12, ligule 

 i in. long ; disk-florets rather more numerous. Corolla-tube glandular 

 below. Achenes ^ in. long, glabrous or puberulous towards the top. 

 — Harv. et Sond. Fl. Cap. iii. p. 441 (var. a. asperum). 



Kile Xiand. Somali-land, mountainous region, on dry limestone, altitude 

 6,000 ft., Hildebrandt ! 



Occurs also in the Cape Flora and Natal. 



89. URSINIA, Gsertn. ; Benth. et Hook. f. Gen. PL ii. p. 456. 



Capitula heterogamous radiate ; ray-florets 1-seriate ligulate neuter. 

 Involucre hemispherical of oo-seriate imbricate successively longer 

 bracts, especially the inner with scarious margins. Paleae of receptacle 

 equalling and enfolding the florets. Anther-base unappendaged. Style- 

 branches truncate. Achenes subterete (10-costate or) with 5 longitu- 

 dinal grooves ; pappus duplex, outer of 5 broadly obovate, opaque, 

 white, contorted scales equalling the achene, inner paleae 5 subulate. — 

 Herbs with alternate toothed or 1-2-pinnatipartite leaves and terminal 

 pedunculate capitula with a yellow disk. 

 A large genus of the Cape. 



1. U. annua, Less, in Linncea vi. p. 165, in notd (1831). Glabrate 

 annual, ranging up to 1 ft. high, erect or difiuse, branched or sub- 

 simple. Leaves pinnati- or bipinnati-partite, petiolate, ranging up to 

 2J in. long, somewhat fleshy ; segments linear-filiform, (in our speci- 



