jb — Primulas of Petiolaris-Sonchifolia Section. 269 



Leaf margin repand-denticulate, outer leaves 



with distinct petiole longer than the lamina, 



calyx lobes narrow, long attenuate at apex 



18. petiolaris. 



Calyx green, scape not developed. 



Leaves membranous, irregularly coarsely toothed or 

 lobulate with the lobules toothed, later ones differ- 

 ing from earlier ones in being larger, cordate at 

 base and long petioled, corolla lobes longer than 



broad 10. saxicola 



Leaves chartaceous, sharply erose-denticulate, all 

 similar in shape, but the outer with longer and 

 more distinct petioles, none cordate at base, corolla 

 lobes nearly as broad as long . . 14. gracilipes. 

 Scape present equal to or longer than the leaves or, if shorter than 

 the leaves, still quite conspicuous owing to the lax foliage. 

 Corolla lobes 3-toothed or more or less irregularly toothed. 

 Calyx lobes spreading or subspreading, long and finely attenu- 

 " ate-acuminate or almost aristate-acuminate, the acumen 

 often spirally twisted ; leaves during flowering all uni- 

 form, spathulate or oblong-spathulate, sessile, or with 

 short, broadly winged petiole, or a few with distinct long 

 petioles, during fruiting ovate or occasionally elliptic 

 leaves usuallv truncate at the base, with petiole much 

 longer than lamina, developed from lateral buds ; corolla 

 lobes irregularly toothed, usually rather deeply 2-3-lobed. 

 with the lobules many-toothed ; fruit included in calyx 

 tube, the markedly stiff calyx lobes persistent 



23. scaptgera. 



Calyx lobes acute or variously toothed or lobulate ; leaves at 

 flowering time dimorphous— some sessile or with a very 

 broadly winged scarcely distinct petiole, others with a dis- 

 tinct long petiole subequal to or longer than the lamina. 

 Outer petioled leaves cuneate or acuminate, rarely sub- 

 truncate at base, margin sharply denticulate ; none of 

 the bracts expanded into petioled leaves ; pedicels and 

 calyx during flowering very densely covered with stalked 

 capitate glands ; calyx lobes not spreading and not very 

 rigid oblong, irregular at apex, rounded, shortly obtusely 

 acuminate or more often 3-lobulate ; corolla lobes sinuate 

 dentate : capsule included in calyx tube 10, m 

 Outer petioled leaves truncate or cordate at the base, rarely 



nearly always expanded into petioled leaves ; pedicels and 

 calvx during flowering puberulous with stalked capitate 

 glands ; calvx lobes not very rigid, variable in shape, 

 mostly narrowly deltoid or oblong-deltoid, acute or 

 shortly acuminate at apex ; corolla lobes 3-toothed ; 

 capsule subequal to calyx tube . . 22. bracteosa. 

 Corolla lobes emarginate or rather deeply bilobed, the lobules 

 entire, rounded at apex. _ 

 Leaves rather shallowly repand-denticulate or denticulate, 

 few in number and rather lax, usually elliptic or oblong- 

 elliptic ; scape 2-flowered ; whole calyx obcomc ; corolla 

 tube annulate 25. odoniocafyx. 



