282 Mr.D.Dow's Descriptions of new Genera and Species 
CHUQUIRAGA. Juss. 
JounaNNrIA. Willd. 
Bacasıæ sr., Ruiz et Pavon. 
Flosculi regulares, 5-partiti, hermaphroditi. Pappus uniformis. 
Involucrum turbinato-campanulatum, multiplici ordine poly- 
phyllum, imbricatum : squamis adpressis, cartilagineis, ex- 
teriùs gradatim minoribus, costa valida apice in mucronem 
rigidum subulatum excurrente; intimis elongatis, acumi- 
natis, radium constituentibus. Receptaculum densè villoso- 
lanatum. Flosculi indefiniti, hermaphroditi, tubulosi, altè 
5-partiti, villosi : fauce intùs densè barbatà! segmentis line- 
aribus, strictis, apice penicillatis! nervis marginalibus pro- 
minulis. Stamina disco epigyno inserta: filamenta com- 
planata, libera, basi tubi corollee adherentia: anthere in 
tubum connate, appendice lineari-ligulatá cartilagineá co- 
ronatz, basi biset: v. bidentate. Stigmata lineari-lingu- 
lata, conniventia, papilloso-pruinosa.  Achenia turbinata, 
undique villosissima. Pappi radiis copiosis, valdé plu- 
ge mosis, infernè crassioribus, Ide — — ima 
i connat is , apice simplici. - À 
Frutices sempervirentes, erecti, ei, Faia ine D 
nosi. Folia alterna, mar gine PCTs callosa, pungenti- 
mucronata, coriacea, nitida; aut omnino subulata, spinosa. 
Capitula terminalia, solitaria, sessilia, erecta, magna, v. plura 
_ paniculata. Inyolucra ertùs fulvescenti-villosissima, nunc 
glabriuscula : : squamis /uteo-coloratis. Flosculi aurei. 
Obs.— Folia sap ore amarissimo gaudent. 
* Capitulis 
