of the Class Composite. 247 



adpressa, elliptica, obtusa, margine copiose denticulata, 

 subcoriacea, reticulato-venosissima, rugosa, subti\s pilosa, 

 supra, punctis elevatis scabra, utrinque viridia, pollicaria 

 v. sesquipollicaria. Scapus rectissimus, filiformis, cubita- 

 lis, undique lanA adpressa nivefi obtectus, squamis paucis 

 brevissimis adpressis instructus. Flos erectus. Involucrum 

 hemisphaericum, triplici ordine polyphyllum, imbricatum : 

 squamis lanceolato-linearibus, setaceo-acuminatis, extiis la- 

 nuginosis ; intimis disco longioribus. lieceptaculum nudum, 

 scabriusculum. Flosculi lutei 1 radii plures, bilabiati, fcemi- 

 nei, singulo ordine dispositi, staminibus sterilibus, radium 

 distinctum constituentibus ; labio exteriore amplo, ligulato, 

 obtuse tridentato, '4-nervio ; interiore lineari-angustissimo, 

 obtuso, canaliculato, erecto, binervio ; disci copiosi, tubu- 

 losi, 5-fidi, hermaphroditi : segment is linearibus, obtusis, 

 erectis, binerviis. Filamenta gracilia, laevia. Antherce ap- 

 pendicula lineari-lanceolatd mucronata cartilaginea coro- 

 natas, basi bisetosai : setis ramulosis, subplumosis. Stigma 

 utriusque bilobum : lobis brevibus, adpressis, obtusissimis, 

 pruinosis. Achenia linearia, ancipiti-compressa, sericeo- 

 villosa. Pappus capillaris, persistens, sordide cinereus : 

 radiis duplici ordine copiosis, denticulato-scabris. 



This genus, constituting an intermediate group between Chap- 

 talia and Leria, differs from the former in the regularity of the 

 limb of the florets of the disk, and from the latter in the female 

 florets of the circumference forming a distinct radius, and being 

 arranged generally in a single series. The Onoseris purpura t a of 

 Willdenow, and the hieracioides and speciosa of M. Kunth, are 

 clearly referable to the genus, and perhaps also the Chaptalia 

 r uncinate, ; but I doubt whether any of the other plants hitherto 

 included in it are really species of this genus. 



vol. xvi. 2 k Leria. 



