274 LXXIII. COMPOSITZ (OLIVER AND HIERN). [ Vernonia. 
11. V. Poskeana, Vatke et Hildebrandt in Oesterr. Bot. Zeitschr., 
1875, p. 824. An erect simple or branched slender annual, 1-3 ft. 
high. Stem terete, striate, softly and inconspicuously pubescent, 
leafy. Leaves alternate, linear, acute, attenuate to a slightly dilated 
and sessile base, repand or entire, thinly puberulous, glandular, ranging 
up to 8 in. long by } in. broad. Capitula subturbinate, 3 in. wide, 
many-flowered, on pedicels j,—3 in. long, in a terminab corymbose 
panicle 2-8 in. wide. Scales of the involucre multiseriate, outer ovate- 
lanceolate, inner linear-oblong, acute, with a long dark setiform patent 
apiculous, pubescent; receptacle not alveolate. Corolla gradually 
narrowed, purple. Anther-base acutely produced. Achenes (imma- 
ture) shortly hairy; hairs sub-5—7-seriate. Pappus duplex, sordid ; 
outer squamiform with lanceolate imbricating squame, inner sete rather 
few, barbellate, deciduous.—Crystallopollen angustifolium, Steetz in 
Peters, Mossamb. Bot. p. 366, a. forma vulgaris, Steetz, l.c. 
Mozamb. Distr. Zambesia, Shupanga, fl. June, Dr. Kirk! Zanzibar Island, 
Hildebrandt ! Rios de Sena, Peters ! 
12. V. Kirkii, 0. & H. Herb of 14-8 ft. from a short woody 
stock. Stem eect, branched above, angular, striate, shortly and thinly 
pubescent, glabrescent. Leaves alternate, linear or linear-oblong, nar- 
rowed to each end, acute, upper sessile or subsessile, lower with a 
short winged petiole, scabrid above, thinly pubescent beneath, 3-4 in. 
long, }-4 in. broad. Capitula hemispherical, 1-3 in. diameter, 
many-flowered, terminal and axillary, solitary on shortly pubes- 
cent peduncles 1-84 in. long. Scales of involucre pluriseriate, 
thinly pilose above, scarious with herbaceous midrib, with a darker 
patent or recurved apiculus, outer smaller lanceolate, inner oblong; 
receptacle not alveolate. Anther-base obtuse. Achenes 8-10-costate, 
sparingly pilose on the ribs and with some sessile glands between. 
Pappus duplex, barbate, sordid; outer squamiform linear-lanceolate 
ciliate, inner caducous. 
Mozamb. Distr. Zambesia, Shupanga and Mazzano, Dr. Kirk! Dr. Stewart! 
13. V. demulans, Vathke in Oesterr. Bot. Zeitschr., xXVu. P- 195 
(1877). An erect herb 14-2 ft. high, branched at least above. 
Branches terete striate, patently and appressedly rufous-pubescent. 
Leaves alternate, oblong or ovate or obovate-oblong, acute, rounded oF 
narrowed at base, subsessile, entire or subentire, appressedly pubescent 
and squamulose, 1-2 in. long by +1 in. wide, without lateral velDs. 
Capitula subhemispherical, 12-20-flowered, on unequal pedicels up to 
1 in. long, in divaricate lax cymes 6-8 in. wide. Scales of the m- 
ee puvescent, pauciseriate, outer ones subulate, ciliate, ind " 
anceolate-linear longer apiculate. Receptacle glabrous, y5—$ 19. WO" 
Corolla glabrous, gradually narrowed, Purple tro a ee shortly 
produced. Achenes tetragonous, 4-costate, narrowed to callous base, 
setulose, sessile-glandular. Pappus duplex, subrnfous ; outer square 
form short lanceolate ; inner sete barbellate, deciduous. 
Mozamb. Distr. 6° 8’S. Lat. East . ‘oast, at Mom- 
bassa, Kirk! Hildebrandt ! st Coast, Forbes ! Zanzibar Coa 
