162 SPACH. — UEViSIO GKNKIUS MICP.OLO.NCHUS. 



bera , vel nonnisi basi cohaerentia. Specierum nonnullarurri 

 acilenia extima aut epapposa aut pappo saltem minimo coronata 

 observantur. Pappus uterque persistens : intimus constans e 

 conspicuo annulo corneo hinc (latere semper exteriore) producto 

 in paleam rigidam (nec , ut habet Cassinius , membranaceam) 

 subulato-liguliformern pappo exteriori nuiic sublongiorem nunc 

 plus minusve breviorem modo indivisam modo irregulariter 2-v. 

 3-cuspidatam (ideoque si mavis e paleolis 2 v. 3 plus minusve 

 concretis formatam) , haud raro utrinque v. altero latere solum 

 paleola minori setacea comitatam In MicroloncJio papposo (Nob.) 

 pappus intimus saepe verticillum subcompletum paleolarum inae- 

 qualium sistit. 



Sequentia ad specierum cunctarum organographiam spectan- 

 tia concisionis gratia descriptionibus praemittere juvat. 



Plantée herbaceae ; radice annua v. perenni , perpendicularï. 

 Caulis erectus , virgatus , paniculatus (speciminibus vegetiori- 

 bus ramosissimus ; hebetatis subsimplex v. simplex) , angulosus, 

 striatus , foliosus , medulla farctus , inferne v. saltem juxta basin 

 villis crebris albidis crispis (sub lente moniliformibus) brevibus 

 patulis v. retrorsis basi dibtatis conspersus v. quasi lanatus 

 (adultior haud raro calvescens) , superne glaberrimus. Rami si- 

 miles cauli at tenuiores , magis minusve divisi , simul ac ramuli 

 plerumque glaberrimi , lucidi , graciles (ramuli plerumque fere 

 filiformes) , inferne foliati v. foliosi, superne aphylli v. foliis mi- 

 nimis paucis instructi , apice cartilaginei , incrassati , monoce- 

 phali ; evolutione centrifuga. Folta heteromorpha : radicalia 

 tenuia, rosulata, in petiolum alatum v. marginatum angustata , 

 lyrata , v. runcinata , v. sinuato-pinnatifida (primordialia lanceo- 

 lata , indivisa, mox marcescentia) , magis minusve setulis brevi- 

 bus scabra et intermixtis villis crispis conspersa , ad costam la- 

 nato-hirsuta ; lobis sinubusque varie dentatis v. eroso-denticulatis; 

 dentibus mucronulatis ; folia caulina inferiora radicalibus confor- 

 mia , conferta v. confertissima ; caetera sessilia, gradatim gla- 

 briora, minora et minus incisa, pleraque coriacea v. subcoriacea, 

 lucida, lanceolata v. lanceolato-oblonga, cuspidato-acuminulata, 

 nunc sinuato- nunc eroso-dentata ; dentibus aristulatis ; ramealia 



