212 Mr. D. Dow's Descriptions of new Genera and Species 
lanceolato-linearibus, acutiusculis, primàm conglutinatis, 
demum spiraliter revolutis. Anthere basi setis 2 simplicibus 
munite : appendiculá lineari-lanceolatá acuta atro-violaceá. 
Stigma bifidum: laciniis semicylindricis, apice latiore, trun- 
cato, minute papilloso. Achenia cuneato-oblonga, pilis rufis 
hirsutissima. Pappus pilosus, fulvus: radiis creberrime den- 
ticulatis, mucronulo simplici nudo apiculatis. 
Obs. Planta Scorzonere peruviane nomine a Ruizio inscripta. 
Floret tempore pluviarum. Vulgd Escorzonero. Maxime 
refrigerans et cordialis est: usus ejus communissimus est 
in omni Regno Peruviano. Ruiz Mss. 
This genus is intimately allied to the preceding ; but its tuber- 
culate receptacle, the consistence and greater uniformity of its 
florets, and its involucrum composed of a double series of nearly 
equal scales, appear to constitute a sufficient generic distinction. 
Intimately allied to the last species is the Perdicium squarrosum 
of Vahl (Act. Havn. i. par. 9. p. 11. 1. 6.), which is, however, 
distinguished by its more slender habit; by the more numerous 
and closely disposed segments of its leaves; and lastly, by having 
much fewer flowers on longer peduncles, disposed in a loose 
spreading — 
E c3 Parro EN 
s fo ae — Lag. et 
Flosculi neina radiati. Pappi rda is 
dispositis. Involucrum imbricatum. 
Involucrum semiglobosum, triplici circiter serie polyphyllum, 
imbricatum. — Receptaculum nudum, scrobiculatum. Flos- 
a culi plurimi, hermaphroditi, bilabiati; in periphzerid ma- 
ores ligula longiore patulo et hinc radium constituentibus ; 
'teriore ligulato, 4-nervio, tridentàto ; interiore pro- 
funde bipaitite= : segmentis lineari-angustissimis, obtusius- 
culis, 
Taoa Modes serie 
