124 HANDBOOK OF IRIDE.E. 



stems narrowly winged, simple, leafless, 3-6 in. long, ending in a 

 linear bract, from the axis of which arise 2-4 shortly peduncled 

 clusters. Eoot-leaves narrow linear, shorter than the stem. 

 Spathes 2-4-flowered, j^ in. long; valves oblong, with a distinct 

 W'hite edge. Perianth-segments oblong, acute, ^ in. long, white 

 with violet veins. Filaments united in a pilose ampullaeform 

 column. Capsule depresso,- globose, ^ in diam. 

 Hab. Central Brazil ; Minas Geraes, Regnell 444 ! 



13. S. ANGusTiFOLiUM Miller, Gard. Diet. edit. vi. No. 2. S. 

 Bermiuliana Linn. Sp. Plant. 1853, ex parte (Dill. Hort. Elth. 49, 

 t. 41, fig. 49). 5. fivcntiinewu Curt. in. Bot. Mag. t. 4G4 ; Red. Lil. 

 t. 282. ,S'. anceps Cav. Diss. vi. 345, t. 190, fig. 2 ; Lodd. Bot. Cab. 

 t, 1220; Engl. Bot. edit. iii. t. 1491. Marica ancejis Ker. — Pioot- 

 fibres long and slender. Stems about a foot long, flattened and 

 distinctly winged down to the base, ^ in. diam., usually branched, 

 with 2-3 heads on long erect wiuged peduncles, with a reduced leaf 

 from the fork and often 1-2 lower down. Eoot-leaves thin, linear, 

 shorter than the stem, ^-^ in. broad. Spathes 1-4-flowered, about 

 an inch long ; valves lanceolate, with a narrow white edge. 

 Perianth ^ in. long, violet with a yellow base; segments obovate, 

 distinctly mucrouate. Filaments united in a cylindrical column 

 ^ in. long. Capsule globose, ^ in. diam. 



Var. S. BELLUM S. Wats, in Proc. Amer. Acad. xii. 277. S. 

 BoiKjlasianim Herb. — Stems branched, more narrowly winged than 

 in the type, usually without any leaf below the fork. Leaves and 

 spathe-valves firmer, the latter rather shorter, with a more distinct 

 white edge and more exserted pedicels. — California and New 

 Mexico. 



Var. S. MUCKONATUM Mich. Fl. Bor. Amer. ii. 33. Marka 

 vnitronata Ker. — Stems simple, narrowly winged throughout, 

 usually leafless, ending in a sessile cluster overtopped by a linear 

 bract. Leaves narrow and more rigid. Capsule and seeds smaller. 

 — Pocky Mountains and British North America. 



Var. S. GENicuLATUM Herb, in Bot. Reg. 1843, Misc. 81. S. 

 viinus Engelm. & A. Gray. — Dwarf, densely tufted, much branched. 

 Stems slender, narrowly winged low down, often bearing 1-2 leaves 

 below the fork. Flowers, capsules and seeds smaller than in the 

 type. — Texas. 



Hab. Sitcha and Hudson's Bay, through British North America and 

 throughout the United States. Also mountains of Mexico, Ireland and 

 naturalised in New Zealand. Other forms are S. Nuttnllidntim, AitreUaiiuni 

 and acuminatum Herb., S. e.vcisum, and probably S. lioiitomaUain Klatt. 



14. S. CHiLENSE Hook, in Bot. Mag. t. 2786. S. rowosum, var. 

 chilense Herb. — Root-fibres long and slender. Stem l-l-g- ft. long, 

 flattened and narrowly winged upward, j-V-f i^^- diam., subterete 

 towards the base, bearing often 4-6', sometimes as many as 12-20 

 heads on long, erect, narrowly winged peduncles, with a reduced 

 leaf from the base of each and often one lower down. Root-leaves 

 weak, linear, shorter than the stem. Spathes 3-6-flowered, J-1 in. 

 long ; valves rigid, lanceolate. Perianth i in. long, lilac, with a 

 yellow base ; segments oblong, mucronate. Filaments uuiled 



