348 CXXXVI. IRIDEZ (BAKER). [Aristea. 
7. A. paniculata, Pax in Engl. Jahrb. xv. 151 (April 1892), not 
of Baker (Aug. 1892). Leaves many in a basal rosette, firm, linear, 4-1 
ft. long, }-} in. broad. Peduncle flattened and distinctly winged, 4-1 
ft. long below the inflorescence, bearing a single reduced leaf. Inflores- 
cence corymbose; clusters of flowers 3-4; peduncles erecto-patent, 
narrowly winged, 1-1} in. long. Spathes oblong, 4 in. long; outer 
valves oblong, obtuse, with a firm centre and brown membranous edge. 
Perianth 4 in. long. Capsule oblong, obtusely angled, subsessile, 4 in. 
long.—A. Lastii, Baker, Handb. Irid. 142 (Aug. 1892). 
Mozamb. Dist. Portuguese East Africa: Mukua; Namuli Hills, Last ! 
6. HESPERANTHA, Ker; Benth. et Hook. f. Gen. P). iii. 702. 
Perianth rotate; tube short, cylindrical; segments 6, subequal, 
oblong, spreading. Stamens inserted at the throat of the perianth-tube, 
equilateral; filaments filiform; anthers lanceolate, basifixed. Ovary 
3-celled; ovules many, superposed ; style not longer than the perianth- 
tube, with 3 long subulate branches. Capsule small, turbinate, loculi- 
cidally 3-valved. Seeds small, globose or angled by pressure.—Root- 
stock a small tunicated corm, with a flat base. Leaves few, narrow, 
distichous. Flowers in a distichous spike; spathe-valves small, green, 
generally not longer than the perianth-tube. 
Species 27, the others all South African. 
Perianth-segments as long as the tube. 
Anthers shorter than the filaments ; : 1. H. alpina. 
Anthers longer than the filaments . : > . 2. H. petitiana. 
Perianth-segments longer than the tube 3. H. Volkensit. 
1. H. alpina, Benth. & Hook. f. Gen. Plant. iii. 703. Corm very 
small, globose. Produced leaves narrowly linear, sub-basal, firm, Een 
glabrous, 3-4 in. long, }-} in. broad. Stems slender, simple, }-1 ft. 
long, with a sheathing reduced leaf at the middle. Flowers 2—4 SCH 
lax spike ; outer spathe-valve lanceolate, green, 4—1 in. long. Sech? z 
tube straight, erect, 4—4 in. long; segments oblong, as long as the tube, 
the inner white, the outer claret-red outside. Stamens shorter than 
the perianth-segments; anthers oblong, shorter than the filaments. 
Style-branches } in. long. Capsule obovate-oblong, 4—} in. mayne 
Baker, Handb. Irid. 147; Engl. Hochgebirgsfl. Trop. Afr. 174 
Geissorhiza alpina, Hook. f. in Journ. Linn. Soc. vii. 223. 
! 
Upper Guinea. Cameroons: on mountains at 8000-10,000 ft., Mann, 2134+ 
Johnston, 18! Preuss, 968! 
2. H. petitiana, Baker in Journ. Linn. Soc. xvi. 96. Corm small, 
globose; tunics rigid, dark brown. Produced leaves 2, suprabasal, 
linear, flat, erect, moderately firm, glabrous, 6-9 in. long, 4 in. b : 
Peduncle slender, simple, 1 ft. long, with 1 long-sheathing rudimentary 
leaf. Flowers few in a lax spike; outer spathe-valve oblong, obtuse, 
