330 LXXIII, COMPOSITH (OLIVER AND HIERN). [ Pluchea, 
6. P. heterophylla, Vatke in Oesterr. Bot. Zeitschr. 1875, p, 326. 
A low shrub, but little branched, about 8 in. high, covered above as 
well as the involucral bracts with stipitate glands, otherwise glabrous; 
branchlets thin, leafy. Leaves obovate-oblong, fleshy ?, narrowed at 
the base into the petiole, about 14 by } in., in some cases quite entire 
and rather obtuse, in other cases deeply incise-dentate, with lobes and 
apex acute, lepidote-punctate on both sides. Heads few, pedunculate, 
subcorymbose. Involucral scales in many rows, narrow, recurved at 
the apex ; the outer ones gradually shorter, rather obtuse ; the inner- 
most ones ‘acute; common peduncle bracteate. Female florets m 
many rows, numerous; corolla tubular, filiform, bidentate at the 
apex; stigmas exserted. Male florets in the middle of the head, nu- 
merous, exceeding the female; corolla narrowly tubular, shortly 5-fid 
at the apex. Style undivided, very slightly bilobed at the tip. Anthers 
shortly caudate-acuminate at the base. Achenes appressedly setose. 
Receptacle shortly foveolate. Sets of the pappus in one row, rather 
scabrid. 
Wile Land. Somali country, among the Ahl Mountains, Hildebrandt! 
The description is taken from Vatke, /. ¢. 
7. PB. pinnatifida, Hook. fil. Ic. Pl. t.1156. Shrubby, divaricately 
branched. Branches pale brown, terete, glabrous below, glandular- 
puberulous and leafy above, viscid at the extremities. Leaves deeply 
pinnatifid, glandular-viscid, 4-1 in. long by 4-2 in. wide; lobes linear, 
simple or occasionally toothed. Capitula campanulate, 3 in. wide, 
many-flowered, solitary or subsolitary, on long rather thick stalks, 
3-1 in. long, terminating the flowering branches. Scales of involucre 
multiseriate; outer linear-lanceolate, successively shorter ; inner 
linear, glandular-puberulous, shortly ciliate, acute, mostly appressee 
Receptacle flat, 1, in. diam., naked. Achenes thinly and shortly 
pilose, not compressed. Pappus of few (8-10) sordid sete. 
Wile Land. Somali country, Capt. Playfair ! 
One of the sources of the drug Dagaboot or Gagaboot. See also note under Jphi- 
ona rotundifolia. 
29. DENEKIA, Thunb. ; Benth. et Hook. f. Gen. Pl. ii. p. 293: 
Capitula heterogamous, disciform, many-flowered ; outer oot 
filiform 9, of the disk sterile. Involucre broadly campanulate ; § 
biseriate, subequal; inner membranous; outer herbaceous wit ee 
branous margins. Receptacle plane, naked. Corolla of 2 ae 
filiform ; mouth 2-—lobed ; lobes many times shorter than tube, ovate ; . 
sterile florets tubular-infundibuliform, 5-fid, with recurved or rev as 
segments. Anthers shortly tailed, apex acuminate. Style-branc 
ovate, obtuse. Achenes of 9 florets very small, oblong, terete ex 
terete, epappose ; of sterile florets slender, with pappus reduce Weak 
single (or 2) long filiform seta, pedicellate, plumose at apex. 
annual or biennial herbs, usually branching from the crown. Ls 
alternate, oblong, amplexicaul, cottony below (or glabrate). Capt 
