Gladiolus.} IRIDES (Baker). 187 
Leaves linear : 
Leaf-sheaths glabrous : 
Perianth-tube 14 in. long... (31) hyalinus. 
Perianth-tube lin. long ... (32) vittatus. 
Perianth-tube fin. long ... (33) striatus, 
Perianth-tube 4-4 in. long: 
Segments half as long as 
the tube eee oe 
Segments twice the 
length of the tube: 
Produced leaves 2 (35) Niveni. 
Produced leaves 3-4 : 
Stamens half as 
long as limb (36) punctatus. 
Stamens as long 
as the lower : 
segments ... (37) brachyseyphus. 
Leaf-sheaths hairy — ove (33) villosa, 44 
B. Leaves ensiform. 
Parviflori. Perianth-tube under an inch long. 
Spikes equilateral ; flowers very numerous : 
Flowers red : 
Perianth-tube 4 in. long... be »» (39) crassifolius, 
Perianth-tube $ in. long... eo .»» (40) Elliotii. 
Flowers yellow : 
Stem pubescent... che as -- (41) Ludwigii. 
(34) paludosus. 
Stem villose .,. = a es +. (42) sericeo-vi 
Spikes secund; flowers fewer: 
Flowers yellow... one ees ee «. (48) ochroleucus. 
Flowers red : 
Upper segments 4 in. broad : 
Perianth-tube 3 in, long ont ae (On) 
Perianth-tube 4 in. long vos vee (45) Echloni, 
Upper segments } in, broad; two inner 
lower with a large dark blotch : 
Flowers yellow... —... re ... (46) purpureo-auratas. 
Flowers purple : 
Outer spathe-valve 1-1} in. long (47) Papilio. 
Outer spathe-valve 14-2 in. long (48) 
Blandi. Perianth-tube 1-2 in, long; flowers white or pale red, 
Segments obovate, obscurely pointed : 
Sheaths and leaves hairy : 
Segments aslongasthetube ... ... i) hirsutus. 
ents shorter thanthetube ...  ... (50) salmoneas, 
Sheaths and leaves glabrous: 
Perianth-tube 1-14 in. long oe --- (51) seaphochlamys, 
: Perianth-tube 14-2 in. long __ ... «- (52) floribundus. 
Segments oblong, distinctly pointed : 
Perianth-tube curved : 
ts 4-4 in. broad... ren ii ) oppositifiorus 
Segments 4-lin. broad... ove .. (54) blandus. 
Perianth-tube nearly straight: 
Segments nearly concolorous phe case | (08). Millori. 
with a bright red central band... (56) undulatus. 
Cardinales. Flowers large, bright red, with a nearly straight tube, and upper 
segments not distinctly hooded. 
Segments subequal, shorter than the tube ... ... (57) Macowani. 
Upper segments as long as the tube... ... (58) Adlami, 
Segments unequal, longer than the tube: 
Upper segments }-lin. broad ... obs . (59) cardinalis. 
