324 LXXlii. COMPOSITE (OLIVER AND hiern). [Laggera. 



outer smaller. Receptacle naked. Corolla of 5 fl. tubular, filiform, 

 mouth dentate; of inner florets tubular toothed. Anther-base 2-dentate, 

 often unequally or shortly sagittate, not distinctly tailed nor with the 

 produced bases cohering in pairs. Style-branches narrow-linear pa- 

 pillose. Achenes glabrous or thinly pilose, the hairs often in faint 

 lono-itudinal rows; pappus 1 -seriate, setiform. — Herbs or frutescent 

 below, tomenfcose pubescent scabrid or glabrate. Leaves alternate, 

 simple, entire or denticulate, decurrent. Capitula varying to 1 in. 

 diam., variously panicled or axillary. 

 A small genus of the Old World Tropics. 



Branches alate with interrupted wings 1. L. pterodonta. 



Branches alate with continuous wings. 

 Peduncles varying to 1 in. 



Kepeatedly divaricate. Leaves entire 2. L. divaricata. 



Panicle pyramidal or elongate. Leaves denticidate. 



Capitula 1-1^ in. diam. (peduncles decurved) . . . . 3. Zr. squarrosa. 

 Capitula ^-\ in. 



Outer involucral scales glandular-pubescent or glabrate, 



not recurved at flowering 4. i. crasaifolia. 



Outer involucral scales tomentose or scabrid -pubescent. 

 Leaves subentire or denticulate, hoary-floccose be- 

 neath 5. L. tomentosa. 



Leaves dentate or denticulate, tawny-tomentose be- 

 neath %. L. alaia. 



Capitula subsessile. 



Involucral scales linear or li"n ear-lanceolate, not her- 

 baceous ; wings broad. 



Capitula axillary. Leaves acute 1. L. Braunii. 



Capitula terminating short axillary branches. Leaves 



obtuse 8. Z. ohlonga. 



Outer scales lanceolate herbaceous ; wings narrow . . . 9. Z. brempes. 



1. Zi. pterodonta, Sch. Bip. in. Schweinf. Beitr. Fl. ^thiop. p. 

 151. Stout erect herb, often viscid, branched above, 2-7 ft. high; 

 branches striate, puberulous especially above, alate with toothed or 

 interrupted wings. Leaves alternate, elliptical-oblong or lanceolate, 

 more or less acute, narrowed at the base, membranous, puberulous, 

 dentate or denticulate, decurrent, ranging up to 6 in. long by 2| in. 

 wide. Capitula widely campanulate, x- flowered, f in. long, on pedi- 

 cels about \ in. long, often nutant, in large terminal pyramidal panicles. 

 Scales of involucre pluriseriate, unequal, linear-lanceolate ; innermost 

 linear, acutely acuminate ; outer short, sessile-glandular, spreading or 

 recurved. Receptacle naked, flat. Ray-florets filiform ; ligule 0. An- 

 ther-base bidentate or obtuse. Achenes pilose. Pappus subfulvous, 

 nniseriate. — Blumea pterodonta, DC. Prodr. v. 448. Serratula polygyria, 

 A. Rich. Fl. Abyss, i. 457, t. 62. Laggera (Blumea) purpiirascens, 

 Schultz Bip. in Hb. Schimp. Abyss. Blumea purpurascens, A. Rich. 

 1. c. 395. Conyza ctenoptera, Kth. ; Walp. Rep. vi. 13.3. 



Abyssinian name, Zagajela. 



Vile ]«and. Abyssinia, Schimper .' Petit/ Sennaar, Kotschy ! Unyoro and 

 Karague, Speke and Grant > Mittu-land, Schweinjkirth ! 

 Occurs also in India, Madagascar, &;c. 



