eOMPOSITEAE 527 



squamis albidis, rufis, purpureis vel flavis, adpressis, subhya- 

 linis; receptaculum planum, nudum, areolatum vel papillosura; 

 corollulae marginales pluriseriales, foemineae, tenues; centra- 

 les hermaphroditae, infundibiliformes, quinguedentatae vel 

 quinquifidae; omnes tubulosae, luteae vel albi^ae, raro roseae, 

 involucro subaequales, raro l(»ngiores; antherae basi bisetae; 

 sfiyli exerti, bifidi; achenhm teres vel teretiusculum, subpa- 

 pillosuui, pappo uniseriato, setis filiformibus vix scabris. Plan- 

 tae herbaceae vel suffruticosae, saepe plus minus lanatae vel 

 tomentosae; folia sessilia vel decurrentia, linearia, lanceolata, 

 spathulata, caulina alterna. 



Endl Gen. Pl. pag. 447. n. 2746.— Don. Trans. Wern. 

 soc. 5. pag. 563. — DC. Prodr. 6. pag. 221. — Guss. Syn. 

 Fl. Sic. 2. pag. 464.—Torn. Fl. Sic. pag. S22.—Bert. Fl. 

 It. 9. pag. 182 in parte, — Juss. Gen. pag. 179 in parte. 

 Smith Engl. Fl. 3. pag. 410 in parte.— ilforw Fl. Sard. 2. 

 pag. 384. 



I. G. luteo-album. — Flores in capitulis parvis, glomerato- 

 corymbosis, glomere modo solitario, terminali, raodo pluribus; 

 scams elongatus, albo-lanatus, ramosus; pedicelli breves et 

 albo-toraentosi; involucrum calathi cylindraceo-carapaniforrae, 

 squarais angustis, obtusis, scariosis, inferne dorso viridibus, 

 margine et superne pallide flavescentibus vel albidis, nitidis, 

 adpressis, imis basi lanatis; omnibus in involucro deflorato 

 stellatim patentibus; receptaculum nudura, papillosura; corol- 

 lulae oranes. tenues, apice lutescentes, tubo filiformi, involu- 

 crura aequantes aut vix superantes; genitalia ut in genere; 

 achenium exiguum, oblongum, glandulis minutis, aureis ad- 

 spermum, pappo sessili, simplici, raolli, albo, facile difiiuo, co- 

 rollulis aequali, setis tenuibus et scabridis; caulis teres, ere- 

 ctus vel adscendens, simplex vel inferne raraosus, rarius e- 

 tiam superne, debilis, a pollice ad sesquipedera longus, su- 

 binde ex eadem radice plures; folia radicalia prima obovata, 

 fugacia; successiva et caulina inferiora oblongo - spathulata, 

 utraque obtusa; superiora lanceolata vel lanceolato-linearia, 

 acuta, sessilia, basi latiuscula, amplexicaulia; orania integer- 

 riraa vel subrepando-undulata, dense albo-tomentosa et mol- 

 liter lanata, nunquam odora; radix fusiformis, siraplex vel 



