

228 EuriiOKBiACE.E ( Brown). [Eujohorhia, \ 





: 



Leaves erect, ascending or spreading : 

 Leaves flat or with incurved (never 

 revoUite) margins^ usually lax or 

 distant, J-2in. long ; stems simple 

 below the inflorescence (24) striata and vara. 



Leaves flat or with revolute margina, 



very numerous and often crowded ; 



stems usually branching : 



Plant IJ-f) ft. high; leaves 6-15 



lin. long ; ' umbel ^-3 in. in 



diam., with 3-8 rays J-3J in. 



long (32) epicyparissias. 



Plant J-1^ ft. high ; leaves 2-6 

 (rarely 8-10) lin. long; umbel 

 J-1 J in. in diam.j with usually 

 4 rays 1-6 lin. long (28) genistoides. 



**PerenniaI erect herbs 1-6 la. high, with a tuberou^^ 



rootstock ; leaves alternate on the unbranched 



part of the stems, opposite at the flowering part and 



forkings of the brancheSj all similar or those on the 



stem not very unlike the flowering leaves or 



bracts, but sometimes reduced or very small : 



Bracts and leaves linear, linear-lanceolate, lanceolate 



or elliptic, glabrous (or in 11, Z'. Gacinzii, var. j8, 



alborillosa, villose) on both sides ; involucres 



solitary or in lax terminal cymeSj not in umbels : 



' Glands of the involucre with 3-7 simple or forked 



processes or teeth along the outer margin : . ' « 



Involucre 3-4 lin, in diam., with the processes 

 of the glands corrugated on their upper 

 , . :■ surface . ' .... ... ... (9) pseudotuberosa. 



TnA'olucre 4-5 lin. in diam., with the processes 

 of the glands not corrugated on their upper 

 Burface -. (10) trichadenia. 



Glands of the involucre entire or minutely crenu- 



late; involucre 1-3 lin. in diam (11) Gueinzii. 



Bracts (and probably the leaves) ovate, long-pointed, 

 pubemlous on both sides ; involucres (includinj^ 

 tliel-lj line-long processes of the glands) 5-6 

 lin. in diam., in lax cymes ... (12) multiflda. 



Bracts oblong or oblong-obovate, rounded and 

 toothed at the apex, glabrous on the back ; 

 involucres 2J-3 lin. in diam., in a terminal 



I.II 11 UCl •»• V»V •.> •»■ «*■ ••• 



(13) graveolens 



TL Steviless kerhs with a Uiberous rootstoch, . Leaves jpetiolate^ well devdopea «/i(f 

 together ivith the peduncles all radical and dtjhuj to the ground In ivinter. 



Blade of the leaf 4-12 lin. broad, subtruncate or 

 shortly and rather abruptly narrowing into the 

 ' * ' petiole ; peduncles J-2 in. long : 



Blade of the leaf elliptic, broadest above the base ; 



styles f lin. long, shortly united at the base ... (SO) pistiaefolia. 



Blade of the leaf oblong or lanceolate-oblong, often 

 broadest at the base ; styles 1-1 J Tin. long, united 

 for half their length .. . , (81) tuherosa. 



Blade of the leaf 1-6 lin. broad, linear to elliptic, cuneate 

 or very tapoiing at the Itase ; 



