272 Lxxiii. COMPOSURE (olivet? and hiern). [Vernonm.l 



Pappus white, duplex, barbate, outer very short, narrowly squamiform, 

 inner stout rigid setiform, caducous. 



XSrile Xiand. Woods on dry ground, Madi (Vernonia No. 5, Speke, Journ. 

 App. 637), Speke and Grant! 



6. V. Perrottetll, Sch. Bip. in Walp. Uep. ii. 947. Annua!, 

 erect from a woody base, 1^2 ft. or more in height, usually copiously 

 branched at least above, leafy ; stem terete striate pubescent or closely 

 puberulous. Leaves alternate, ascending, narrow-linear, revolute more 

 or less when dry, scabrid, |-2 in. long. Capitula ^1 in. diameter, 

 campanulate solitary, terminating the numerous ascending branches, 

 forming a loose cymose panicle. Scales of involucre pluriseriate ap- 

 pressed outer much shorter, lanceolate ; inner linear-lanceolate acute, 

 loosely tomentose, pale, with greenish tips traversed by a prominent 

 paler midrib. Receptacle convex alveolate glabrous. Corolla 

 gradually narrowed, sessile-glandular, purple, limb unequally lobed. 

 Anthers shortly sagittate at base, acute-tipped. Achenes with about 

 8-9 (some obscure) hispid ridges and numerous sessile glands between 

 them, callus-based. Pappus duplex, inner barbellate, outer narrowly 

 squamiform, very short, dirty white. — Oliv. in Trans. Linn. Soc. Lond. 

 xxix. t. 56, fig. A. ; Polydora stcechadifoUa, Fenzl in Flora, 1844, 312 ; 

 V. stoechadifolia, Sch. Bip. in Walp. Rep. vi. 98 ; Wehhia serratuloides^ 

 DO. Prod. V. 72, fide Sch. Bip. in Schweinf. Fl. ^thiop. 162. 



Vpper Guinea. Niger, Barter! Dahomey, Burton! Gambia, Ingram! Whit- 

 field! 



irile Xiand. Sennaar, Kotschy ! Cordofan, Cienkowsky ; Madi, Speke and Grant! 

 (mixed with Hygrophila spinosa, T. And. ; burnt salt is extracted from their ashes) ; 

 Unyoro, Speke and Grant ! Djur Land, Schweinfurth ! 



7. V. Bainesil, 0. Sf B. Herb of 1 ft. more or less ; stems 

 erect leafy, probably from a woody stock, conspicuously striate from 

 the leaf- midribs, sparsely strigillose or glabrate ; simple below, branch- 

 ing above. Leaves narrow-linear, acute, strongly revolute, glabrate, 

 glandular- pitted with depressed median line above, midrib paler, con- 

 spicuous beneath, ^-| in. long. Capitula campanulate | in. long and 

 broad, singly terminating the erect upper leafy branches ; scales multi- 

 seriate appressed obtuse muticous or mucronulate, with a subpromi- 

 nent midrib above, glabrate; outer and median scales elliptic-ovate 

 to obovate, inner linear-oblong. Achenes hispid, obscurely 10- 

 costate. Pappus duplex, sordid, outer very short, narrowly 

 squamiform, inner often broadly setaceous barbellate. 



Soatb Central t " South African Gold Fields," T. Baines ! 



* 



8. V. amblg>ua, Kotschy et Peyr. PI. Tinn. 35, t. 17 B. Annual, 

 erect ^2 ft. Stem terete, striate, loosely pilose- pubescent, leafy. 

 Leaves alternate, oblanceolate or linear- oblanceolate, obtuse, attenuate 

 to a subauricled base, sessile, somewhat scabrous, thinly hairy or 

 puberulous, denticulate or subeutire, membranous, varying to 4 in. in 

 length, ^1 in. broad. Capitula nearly hemispherical, ^-j in. diameter, 

 shortly pedicellate in terminal pilose or pubescent corymbose cymes, 



