130 HANDBOOK OF IRIDE^. 



3-flowered, f in. long ; valves firm, green, lanceolate. Perianth- 

 segments yellow, i in. long. Filaments joined to the top in a 

 cylindrical column as long as the anthers. Capsule small, globose. 



Hab. South Brazil, Glaziou G722 ! Allied to .S'. (datum, but with stamens 

 like those of S. Bermudiatia and its allies. 



40. S. Weirii Baker in Journ. Bot. 1876, 268.— Stems 3-5 in. 

 long, copiously branched from low down, distinctly winged, flexuose, 

 Jjj in. diam., bearing many erect linear leaves an inch long. Spathes 

 ventricose, 1-3-flowered ; outer valves rigid, lanceolate. Perianth 

 yellow, ^ in. long. Filaments free above the base. Capsule globose, 

 cernuous, k in. diam. 



Hab. Campos of South Brazil, Weir, 372 ! Glaziou 15506 ! Nearly allied 

 to S. alatum. 



41. S. ALATUJi Hook. Ic. t. 219. S. Marchio Steud. Souza 

 Marchio Veil. Fl. Flum. vii. 1. 1. — Root-fibres wiry. Stems 1-1^ ft. 

 long, flexuose, broadly winged, ^ in. diam., usually branched, 

 bearing many alternate rigid ascending linear leaves 2-3 in. long. 

 Spathes 2-4-flowered, about an inch long; valves rigid, lanceolate. 

 Perianth yellow, ^-\ in. long. Filaments free nearly to the base ; 

 anthers linear, versatile. Capsule subglobose, ^ in. diam. 



Var. poLYPHYLLUM Baker. — Leaves more numerous, shorter, 

 about 20 to a stem. — Demerara. 



Var. Peaecei Baker. — Stems 1-2 ft. long. Lower leaves 

 4-5 in. long.— Andes of Sandillani, alt. 7000-9000 ft. 



Var. GUATEMALENSE Baker. — Lower leaves 6-8 in. long. Cap- 

 sule ^ in. diam. — Mountains of Guatemala. 



Hab. Widely spread in Tropical America, especially Brazil. 



42. S. iNcuRVATUJi Gardn. in Hook. Ic. t. 513. — Root-fibres 

 slender. Stems simple, a foot or more long, broadly rigidly winged, 

 \ in. diam., bearing many short erect rigid leaves with a broad 

 clasping base. Spathes oblong, -i-f in. long ; outer valves oblong- 

 navicular. Perianth-segments obovate, yellow, ^ in. long. Fila- 

 ments shortly connate. Capsule globose, J in. diam. 



Hab. Brazil ; on the Organ Mountains, near the summit, Guniner 5890 ! 

 Glaziou 3624 ! 



43. S. PLATYPHYLLUM S. Wats. Coutr. xviii. 155. — Root-fibres 

 many, slender. Lower leaves ensiform, 6-8 in. long, |— | in. 

 broad. Stem broadly winged, leaty, branched. Heads few, 

 separate ; spathe-valves firm, oblong-navicular, above an inch 

 long ; pedicels shortly exserted. Perianth yellow, f in. long ; 

 segments oblong. Free portion of filaments ^ in. long. Style 

 cleft nearly to the base. Capsule globose, -J in. diam. 



Hab. North Mexico ; Guadaljara, Pringle ! 



44. S. BREviPEs Baker. — Root-fibres long, slender. Tufts 

 crowded, mixed with copious old rudimentary brown leaves, 

 splitting into fine fibres. Stems very slender, subterete, leafless, 

 8-4 in. long, ending in a fascicle of about 3 clusters. Root-leaves 

 narrow linear, as long as the stem. Spathes \-\ in. long ; outer 



