354 



draceiim, florcs 5 paiilhilum siiperans, fol'iolis iininervüs, li- 

 nearibus, anguslis , longc acumlnalls, exlus albo-tomen- 

 losis. 



L. nutans (Cand. 1. c. Kunlh nov. gen. IV. p. 4. L. 

 lyrata Cass. 1. c. Ti/ssilago nutans L. Amoen. acad. V. 

 p. 406. Sw. obs. bot. 305. Ic: Sloan. Jam. I. 1. 150. f. 2. 

 T. lyrata Pers. syn. II. p. 456.) 



Radix fibrosa, librls validis, slmpllcibus, rufis s. nl- 

 gris. Rhizonia perennc (annuum Svv. W.) repens, prae- 

 morsum, e quo iimis plurcsve caules slmpliclssimi, basi 

 lanlum ima foliati, albo-lanato-tomenlosi, nutantes, 4'' — 

 i\* allJ, follis longiores. FoHa alterna, penninervia, ave- 

 nia s. venosa, tenerrima — rigida, sessilia s. pellolata, 

 spalhulato-oblongo- obovata, lyrata — integra, mucroim- 

 lalo-denticulata — iiitcgerrima, obtusissima — acuta, su- 

 pra glabra aut junlora tomento fugaci obsessa, subtus to- 

 menlo adpresso, persistenli incana, 1 — 6" longa, \ — 

 2|" lata. Capitula 6 — 9'" longa. Corollac in siccis 

 pallidc flavae (purpureae Klh. 1. c), 3 — 6'" longae. 

 Pappus rufescens. Fructus maluri usque ad 1^" longi. — 

 Tanla speclminum grege diligentisslmc comparala, discri- 

 men firmum reperire haud potui, ila ut is, qui sequentcs 

 formas nonnisi pro varietatibus ejusdem spcclci polyinor- 

 phae habeat, a me non valde abhorrcat. 



1) lyrata foliis tenerrlmis, pellucidis, avenlls, lyratJs, 

 acufis, majoribus, tomento subtus laxiori maglsque obso- 

 lete, circiter 4 — 5" longis, 1^" latis, basi angustc alte- 

 nualis. 



2) slniiaia foliis vcnosis, rigidioribus , subaequaliler 

 sinuatis, obtusis, subtus tomento denso, circiter 5 — 6" 

 longis, 2 — 2J" lalts, basi lale atlenualis. — Forma pro- 

 pter habitum formamque lolinrum constantem insignis! 



3) intcgrifolia {Lcria albicans Cand. I. c. iSprg. syst. 

 III. p. 501. L. inicgrifolia Cass. I. c. Tiissilago albi- 



