128 IRIDEX (Baker). [Tritonia. 
Katanarr Reoron: Transvaal; Zoutpansberg Div. ; mountain summit, 
Houtbosch Berg, Nelson, 440! 
29. T. securigera (Ker in Konig and Sims’ Ann. i, 228); corm 
globose, 3-1 in. diam.; tunics of fine, matted, brown fibres; stem 
slender, terete, 4-1 ft. long including inflorescence, simple or 
branched; leaves 6-8 in a distichous rosette, linear, spreading, 
moderately firm in texture, 3-6 in. long, }-4 in. broad; flowers 4-8 
in a lax distichous spike ; spathe-valves oblong, 4-3 in. long, faintly 
toothed at the top, green with a brown margin ; perianth bright red, 
with a tube 3-1 in..long, broadly funnel-shaped in the -upper half; 
segments broad oblong, 3 in. long, the three lower with a large oblong 
callus at the throat; stamens reaching halfway up the limb ; anthers 
much shorter than the filaments; style-branches 1 in. long, over- 
topping the stamens. Act. Hort. Kew. edit. 2, i. 91; Ker, Gen. 
Irid. 118; Baker, Handb. Irid. 196. Gladiolus securiger, Att. 
Hort, Kew. i. 65; Curt. Bot. Mag. t. 383. Montbretia securigera, 
DC. in Red. Lil. t. 53; Klatt in Linnea xxxii, 752. Ixia gladio- 
laris, Lam. Encyc. iii. 341. 
Coast Rrcton : Grahamstown Flats, 2500 ft., Galpin, 386! Oudtshoorn Div.; 
near Kleine Poort, Tyson, 3071! 
CrntERat ReGion: Fraserburg Div.; ona rocky hill at Dwaal River Poort, 
Burchell, 1482! Zak River, Burchell, 1511! Victoria West Diy. ; Carnarvon, 
Burchell, 1550! near Murraysburg, Tyson, 311! 
30. T. flava (Ker in Konig and Sims’ Ann. i. 228) ; corm globose, 
3 in. diam. ; tunics of matted fibres; stem slender, terete, 1-1 ft. 
long including inflorescence, simple or branched ; basal leaves 4-6, 
linear, spreading, moderately firm in texture, 3-4 in. long ; flowers 
3-6 in a lax distichous spike; spathe-valves oblong, 1~1 in. long, 
green with a scariose margin; perianth bright yellow ; tube 3-1 in. 
long, broadly funnel-shaped in the upper half ; segments oblong, } in. 
long, the three lower with a small callus at the throat; stamens 
reaching halfway up the limb. Bot. Reg. t. 747; Gen. Irid. 118; 
Baker, Handb. Irid. 196. Gladiolus flavus, Ait. Hort. Kew. i. 65. 
Montbretia flava, Klatt in Linnea xxxii. 753. Izia flabellularis, 
Vahl, Enum. ii. 67. 
South Argica: without locality. 
r 1 ies ah unguiculata (Baker, Handb. Irid. 196); corm small, 
globose; tunics of fine matted fibres; stem slender, simple or 
branched, 1-14 ft. long; leaves linear, moderately firm, 3 ft. long ; 
spikes very lax, consisting of few erect flowers ; spathe-valves oblong, 
- $4 in. long, green with a brown tip; perianth-tube subcylindrical, 
twice as long as the spathe ; segments unequal, pale lilac, oblanceolate- 
unguiculate, $-1 in. long ; stamens reaching nearly to the tip of the 
Sour Arrica: without locality, Kitching ! 
Collected in 1880. Remarkable for the narrow claw of its perianth-segments. 
