Victorian Plants. 315 



transparently bracteate stalks ; involucral bracts yellow- 

 ish or brownish, mostly blunt, stalk -like at their base ; 

 marginal flowers much longer than all the others, their 

 corollar expansion flat, at the summit incised ; fruits 

 somewhat papillular-rough. P. rugata. 



Involucral bracts nearly smooth ... ... .. 1424 



1424. Annual. 



Desert plant, never tall, somewhat beset with cottony vesti- 

 ture ; leaves lanceolar or the upper gradually linear, 

 recurved along the margin ; headlets of flowers rather 

 large, singly terminal on thin transparently bracteate 

 stalks ; involucral bracts yellowish, much pointed, the 

 inner with stalk-like base ; marginal flowers somewhat 

 longer than the rest, their corollar expansion flat, incised 

 at the summit. F. canesceiis. 



Perennial ... ... ... ... ... .. 1425 



1425. Stalk-like base of the inner involucral bracts quite 



enclosed. 



Often rather tall and soon nearly glabrou.s; lower leaves 

 from elliptic- to elongate-lanceolar, the upper gradually 

 narrower and clasping ; headlets of flowers quite large, 

 singly terminal on conspicuous rather robust bracteate 

 stalks; involucral bracts yellowish, mostly acute, their 

 stalk-like base concealed ; marginal flowers much longer 

 than the rest, their corollar expansion either flat or some- 

 what tubular, conspicuously lobed ; fruit papillular-rough. 



F. acuminata. 



Stalk-like base of the inner involucral bracts partly 

 exserted. 



Often rather tall and soon nearly glabrous ; lower leaves 

 from elliptic- to elongate-lanceolar, the upper narrower 

 and clasping, recurved along the margin ; headlets of 

 flowers solitary or oftener two or few together at and 

 towards the summit of the stem or branches ; involucral 

 bracts lax, yellowish, even the outermost often stalk -like 

 somewhat narrowed ; marginal flowers much longer than 

 the rest, their corollar expansion flat, conspicuously lobed; 

 fruits papillular-rough. F. loiigipedata, 



