ROOEIBAI\O

IMPORTANTMOR}HOLOGICALCHARACTERS FOR
CLASSIFICATION
The scnus Z,ctoe L. ls.l.) and other nenb6 of th. iribe Lactocr. can be
casily recog.ized on lhe bsis o I homogamous, l lgulute capituh and nilky larex lroh the
olher E bcs of lhe family AsLdc*. M.ny work E viz.. De (rddolle, | 816: Ben an&
Hooker, l87li Boissier, 1875: Clarte, 1876: Hdker, l88l; Collet. l92li Knpiczinlov.
1964. Jefiiey, l9T5iFmiko{i, 1976. 1977r R6hingd, 197?r Bener, l994iMm8dn&
Rao, 19951 GneMn & Spnng.t.,20i)l ard Lact,2007 have used rlious morphologlcal
chancters such d habit, slem, leaves, no€t colour. involucr phyllaies, r(eptacle.
cypel. md palpN !o de[nn ln. vtrioN @ belon8ine ro the g.n6 Zz.i!., L. (s.l).
For tn. d€liEitation of taxa belongins to lac!!.a L. (s.1.) dd irs allied genem
vuio6 oacro dd oico norphological chancleG ae i.ten into considc€liore such as
stem, b4rches,leaves, syn florcscence. l ore$ @lour ed nunrber per capirulum, shape.
siaddpositior oac.piNlun, nunb€r olphyll&i.s, runberoipries, sazc. olour. apex
6nd su.fee ol involucre thyll.ries. @cpracle! ddothecial rissues. cypseta and pNppu.
Anong $*, nosl of lhe cb@reu e qune etul ro @ogniz l[e hxa.wlte6 sne
.r. not found lo b. nelptul bea6e of rhcn uifomiry such 6 epatate dd naked
rccepracL(Fis.l.l-1.4)ddEdi.tq?eot.ndodeciatris$es(Fig.t5l.8).Howev.r,rhe
aollowing morphologial checrcB poved qrir. imporra for thc dehnistio, ot
aadu.a !. (s.sF.) and ils alli€d geoea.
STEM:
The paan@ or absencc ot steo ptays d inponm rote in rh. detimitation of
vfoN rda. The @ul@r ch@rer is fai.ly @6om bnr ed€snt is inponafl in
clc{bita qaiseri laohi Beo.