Victorian Plants. 337 



TOXANTHUS. 



1502. Involucral bracts soon recurved at the upper end. 



Somewhat or extensively beset with cottony vestiture ;. 

 leaves quite short, linear j headlets of flowers sessile ; 

 involucral bracts three to five, narrow, downward 

 coherent ; corolla long-persistent, bearing some cottony 

 hairlets towards its base, its tube recurved ; fruits much 

 pointed. T. perpusillus. 



Involucral bracts remaining straight to the upper end. 



Beset with short scattered glandule-bearing hairlets ; leaves 

 quite short, linear, some opposite ; headlets of flowers 

 sessile ; involucral bracts narrow ; corolla long-persistent, 

 its tube recurved ; fruits half-emerged, slightly pointed, 

 somewhat beset with extremely minute hairlets. 



T. Muelleri. 



1503. Pappus-bristlets nearly as long as the corolla, hardly 



ciliolated. 



Somewhat or extensively beset with an appressed or rather 

 cottony vestiture ; leaves flaccid, from spatular-elliptical 

 to narrow-linear ; involucral bracts few ; headlets singly 

 terminating stems or branches ; flowers rather numerous 

 in each headlet ; corolla often pale ; fruits slender, some- 

 what rough. M. tenuifolia. 



ERECHTXTES. 



1504. Involucral bracts rather numerous. 



Perennial, beset with a rough or somewhat cottony vesti- 

 ture ; leaves from elliptic- to linear-lanceolar, either 

 entire or indented or lobed ; headlets of flowers com- 

 paratively broad, in a contracted panicle ; accessory bracts 

 at the base of the involucre conspicuous ; fruits circularly 

 margined at the summit. E. hispidula. 



Involucral bracts several ... ... ... ... 1505 



1505. Headlets of flowers relatively long. 



Tall, generally somewhat beset with cottony vestiture ; 

 leaves from narrow-lanceolar to elongate-linear, entire 

 or scantily indented, often recurved at the margin ; 

 headlets of flowers very numerous, in an ample panicle, 

 quite slender ; corollas of staminate flowers often four- 

 denticulated ; fruits slender, streaked. 



E. quadridentata. 



Headlets of flowers relatively short ........ 1506 



