Swertia.] lxxxvii. GENTiANEyE (baker and brown). 



571 



Corolla-lobes with ii dark tlovsal stripe 

 m the dried state. 

 Plant 6-8 in. high ; rootstock with 



several stems . . . ,8. 



Plant 1^-3 in.higli ; rootstock appa- 

 rently with only 1 stem . . 9. 

 CoroUa-lohes withoTit a dorsal stripe in 

 tlie dried state. 

 Leaves mostly radical, crowded or 

 rosulate, spathulate ; stem- 

 leaves 1-2 pairs ; stems usually 

 several to a i)lant. 

 Sepals obovate or ohovate-oblong, 



obtuse . . . .12. 



Sepals lanceolate, acute . . 13. 



Leaves in 2-4 distant pairs on the 

 stem, not crowded nor rosulate 

 at the base, broadly ovate ; stem 

 solitary. 

 Stem 1-1| lin. thick ; corolla-lobes 

 5-6 lin. long, 2^ lin. broad . 

 Stem ^-^ lin. thick. 



Corolla -lobes 4-5 lin. long, 3-3^ 



lin. 1 road . . . 14. 



Corolla-lobes 2.^-4 lin. long, 



l|-lf lin. broad . . 15. 



"ft Annuals. 



;J:Middle and upper leaves not more than twice as 

 long as broad, usually less, oblong, ovate or 

 orbicular, flat. 

 Flowers solitary ; leaves ovate-orbicular 

 Cymes umbelhitely or trichotoraonsly 2 to 

 several-flowered. 

 Plant 3-6 in. high; stem-leaves I5-3 lin. broad. 

 Pedicels |-f in.lonsr, 8lender(Nile Land). 

 Basal leaves in 1-2 sulidistant pairs . 17, 

 Basal leaves several, rosulate . . 18. 



Pedicels f-li in. long, rather stout and 



stiff; basal leaves crowded (Cameroons) 19 

 Plant 6-9 in. high, 4-6-noded; branches 

 divergent ; stem-leaves 3 -7 lin. broad, 

 cordate-ovate ..... 

 Plant 6-12 in. high, 6-12-noded ; branches 

 erect or ascending. 

 Stem and pedicels conspicuously scabrid- 

 denticulate on the angles ; branches 

 ^-1 lin. thick .... 

 Stems and pedicels not scabrid-denticu- 

 late ; branches ^-h lin. thick. 

 Inflorescence a narrow elongated 



panicle (Cameroons) . . .22 



Inflorescence broadly corymbose 



(Eastern) . . . . .23 



IJ^Middle and upper stem-leaves more than twice as 

 long as broad. 



S. Enrjleri. 

 S. pumila . 



S. cras.tiu.scu I a. 

 S. J'o/ken.fii. 



7. S. quartimana. 



S. petitiana. 

 S. wojeratensis. 



16. S.Jilicaulis. 



S. Wellhyi. 



S. brevipedicella/a 



S. subalpina. 



20. S. abyssinica. 



21. S. clarenceana. 



22. S. dissimilis. 

 ,S. Laxtxi. 



