138 



t 



Flowers blue or inirple; leaves hir- 

 sute : — 



Leaves hastate entire, or lyrate- 



pinnatifid 4. lymia. 



Leaves ovate-lanceolate, more or 



less incised-crenate : — 

 Petals ovate-lanceolate, acute; 



stamens IG 6. polygonoides. 



Fetala rounded, obtuse; sta- 



mens 64 6. hetonicifolia. 



btem-leaves, if any, smaller than the 

 radical leaves; monocarpic, usually 

 ^ biennials [p. 137]: — 



Plowers white, the lowermost in 2- 



flowered cymules: radical leaves 

 pncldy, caulme unarmed ... T. decora. 



J? lowers blue or purple or violet, in 

 raceme-like cymes or on simple 

 ^scapes, never paniculate : — 

 +rlants armed throughout with pun- 

 gent prickles [p. 139]: — 

 Scapes stem-like, leafy below 



flowers, except the upper- 

 most, subtended by leafv ' 

 bracts : — ^ J- 



Petals 4; stigma capitate: 

 Capsule fusiform : — 



Leaves pinnatipartite to 



pinnatisect; stigma 



pale green g. aculeata. 



ijeaves ^ mcised-crenate or 

 mcised-seirate ; stigma 



Capsule long-obcoHic ; leaves 



smuately loberl in • ' ^ 



retals 6-8; stigma clavate: — 

 * J^eaves pinnately partite; 



bracts under the pedicels 

 tew and small 1 1 



Lea.es .ulentS: „. sparlngiy "' '''''"'"■ 



toothed : — - ^ ^ 



Prickles pale ; pedicels usu- 

 ally short; . anthers 

 white or pale buff- 

 coloured 10 z>^ J. •• 

 ITickles usually purple at 



base or throughout ; 

 pedicels long ; anthers 

 orange 10 ■»• 



Scapes simple Radical or'accom"-' ^^ '"'^"• 

 panied or replaced by pseudo- 



tX '* ^^^!!l*^^^ted scapes: 

 leafless or with 1-3 upraised 



