?oo 



Acanthacece. 



\Strobilanthes, 



Bractlets present (except sometimes in 4) ; 

 cor.-lobes much shorter than tube. 

 Spikes more or less elongated. 



Bracts lanceolate or oblong, acute (ob- 

 tuse in 2). 

 Infl. glandular-hairy. 



Cal.-segm. linear, more than half as 

 long as tube. 

 Spikes interrupted ; cor. pubescent 



outside 



Spikes continuous ; cor. glabrous 

 outside ..... 

 Cal.-segm. triangular, less than half 

 as long as tube. 

 L. broadly oval ; spikes short. 

 L. linear-lanceolate ; spikes long . 

 Infl. glabrous (see also var. of i) . 

 Bracts oval, obtuse ..... 

 Fl. in dense heads with empty bracts outside 

 Stam. 4 ; fl. in heads (rarely spikes) or panicles ; 

 sep. usually distinct. 

 Fl. sessile in heads or dense spikes. 



Bracts oblong-lanceolate or oval, outer 2 or 

 more usually empty. 

 Seeds hairy at least on the margin. 

 Fl. in small heads. 



Cor.-tube under i in 



Cor.-tube over \ in. 



Bracts lanceolate, acute, bullate 

 Bracts oblong, obtuse, very silky . 

 Bracts spathulate, obtuse, hispid . 

 Fl. in short spikes. 



Bracts obtuse; peduncles winged . 

 Bracts acute ; peduncles not winged 

 Seeds glabrous ; fl. in small heads . 

 Bracts ovate or orbicular. 



Seeds hairy at least on the margins. 

 Fl. in small heads. 



L. dotted with red glands . 

 L. without glands .... 

 Fl. in spicate strobiliform heads. 



L. hispid-hairy . . . . . 



L. glabrous 



Seeds glabrous. 

 Fl. in heads. 



Bracts ovate, acute. 



Bracts entire 



Bracts serrate 



Bracts orbicular, obtuse. 



Fl. white; stam. much cxserted 

 Fl yellow; stam. slightly exserted . 

 Fl. in spikes. 



Cor.-lobes long, very acute ; stam. 



much exserted . . . . 



Cor.-lobes rounded ; stam. included 



10. S. Walkeri. 



11. S. Thwaitesii. 



12. S. CAUDATUS. 



18. S. exsertus. 



13. S. ANCEPS, 



19. S. Gardnerianus. 



9. S. LANCEOL.-V.TUS. 



14. S. PUNCTATUS. 



15. S. Arnottianus. 



16. S. asperrimus. 



17. S. TRIFIDUS. 



20. S. VESTITUS. 

 24. S. ZEVLANICUS. 



21. S. HOOKERI. 



22. S. CALVCINUS. 



23. S. LAXUS. 

 25. S. SEXENNIS. 



