Sf^/IkUmn.] ixiii. stylidie.e. 3 



Scapes 1 to 9 in. Flowers sessile in a tenninal globular clusler of 



small, leaf-like bracts 8. S. gxUiaium, 



Slock or stem proliferous-branched and rooting at the tufts. 

 Plowers pedicellate in terminal, globular clusters of small, leaf- 

 like bracts 9. 5. repetis. 



Seuiks Iir. Xiiaeares. — Verenmah with a ii^fted or shorfli/ proliferous sfoch or 

 rarely annuals. Leaves radical^ linear or rarely Ihwar-hwceolate, Scapes feafess except 

 a few scattered bracts. Inflorescence racemose^ paniculate or corymbose. 



Calyx-lobes united in 2 lips. Inflorescence nearly simple, long and 

 narrow.— Eastern species. 

 Leaves liuear or linear-lauceolate, 2 to 9 iu. long. Fruit ovoid- 

 oblong • .... 10. S. gramivifolinm* 



Leaves liiiear-suLuIate, under 2 in. long. Fruit uarrow-oblong. 



Flowers small . ]L S, linear e, 



Calys-lobos all free. Inflorescence thyrsoid or racemose. Capsule 

 ovoid or oblong. — Western species. 

 Leaves 2 to 6 in. long. Scape hirsute. Inflorescence thyrsoid . IB. S. elongaium. 

 Leaves uuJer 2 in. long. 



Leaves very narrow liuear^ mucronate. Eaceme simple^ loose, 



glandular 13. S, spinnlosum. 



Leaves liuear but flat, obtuse or mucronate-acute, densely 



tufted. Raceme loose, usually simple . 14. S. caspitosum. 



Leaves linear or slightly cnueate, usually erect, obtuse or 

 rather acute. Eaceme simple or nearly so. Stock often 



slightly elongated. . 



Eaceme nearly glabrous. Flowers purple or rarely yellow . 15. S, vloJaceam, 

 Eaceme glandular-pubescent, llowers usually yellow . . 16. S. hdeitm. 

 Leaves densely tufted, liDcar or slightly cuneate, with a fine, 

 usually hair-like point. 

 Eaccmcs mostly simplcj slightly glandular-pubescent . . 17- S. pUiftrum, 

 Panicle narrow thyrsoid or rartly almost a simple raceme, 



clothed with yellowish, glandular hairs 18. *?. ciliatum. 



Calyx-lobes free. luflorcsceuce corymhose-paniculute. Capsule 

 ovoid or oblong, — Eastern species. 

 Perennial. Leaves in a dense globular tuft, with fine, hair-like 



points. Capsule 2 to 2^ lines long ........ 19. 5. sohoUferum* 



Annual. Leaves linear-filiform. Capsule 1 to IJ lines loug , 20. S, Floodii. 

 Calyx-lobes free. Inflorescence corymbose-paniculate. Capsule 



globiJar. Annual. Western species . ........ 21. S. dispermum. 



Seuiks IV. Androsacese. — Small annuals^ with radical rosulate haves and few^ 

 flowered, leafless seapes. Lahellum long and ascending. Stigma stlpitate between the 

 anthers (sessile in all other series). Capsule globular. — Southern species, 



C'orolla-tube spurred 22. S, caharainm. 



Corolla without any spur .- . 23. S.perpusHlum, 



Series V. Spathulatse. — Terennials with a tufted or proliferous stock or rarely 

 annuals. Leaves radical or terminal^ from linear -spat kill ate to obovate. Scapes leafless 

 estcept a few scattered bracts. 



Tropical species. Leaves usually thin. 



Stock thick and woolly. Leaves pubescent, with a hair-like 



point. Panicle uarrovT -thyrsoid . 24. S. enorhlzum. 



Annuals or with a slender stem below the terminal tuft of 

 leaves. 



Eaceme long and simple 25, 5. dehile. 



Panicle loose. 



Scape with long, spreading, glandless hairs 26. S.florihundum. 



B 2 



