346 CXXXVI. IRIDEX (BAKER), [Romulea. 
late, acuminate, purple outside. Perianth nearly sessile, 1 in. long, 
purple with a golden-yellow throat; segments subacute, 4+ in. broad. 
Stamens half as long as the perianth. Style overtopping the anthers. 
—Harms in Engl. Pfl. Ost-Afr. C. 147. 
Nile Land. British East Africa: Abori, Fischer, 587. 
No specimen in the Kew Herbarium. 
5. ARISTEA, Ker; Benth. et Hook. f. Gen, Pl. iii. 701. 
Perianth membranous, with a short cylindrical tube and subequal 
oblong segments, twisting up spirally after flowering. Stamens inserted 
at the throat of Che perianth-tube; filaments short, free, filiform ; 
anthers erect, linear-oblong. Ovary 3-celled, oblong or cylindrical ; 
ovules many, superposed ; style filiform, with 3 small obovate branches, 
stigmatose round the edge. Capsule oblong or cylindrical, obtusely or 
acutely angled, loculicidally 3-valved. Seeds globose or angled by 
pressure.—Herbs with narrow rigid leaves in a distichous basal rosette 
(the Tropical African species), Peduncle flat or subterete. Flowers 
clustered, fugitive, usually blue ` spathes oblong, the outer valves firm, 
the inner membranous, 
Species 30, the others in South Africa and the Mascarene Islands. 
Stem compressed, but not winged. 
Clusters of flowers 1—2 
Clusters of flowers 4—5 
Clusters of flowers 6-8 
Stem narrowly winged. 
Stem-leaves 1—2, small 
. A. johnstoniana. 
A. zombensis. 
. A. angolensis. 
ont 
4. A, nandiensis. 
Stem-leaves 5-6, large . : 5. A. nyikensis. 
Stems distinctly winged throughout. 
Clusters of flowers 1-2 : 6. A. alata. 
Clusters of flowers 3-4 7. A. paniculata. 
1. A. johnstoniana, Rendle in Trans. Linn. Soc. ser. 2, Bot. iv. 48. 
Leaves many in a basal rosette, linear, rigid, 6-10 in. long, km. broad. 
Peduncle as long as the leaves, slender, compressed but not winged, 
simple, bearing 1-2 terminal clusters of flowers, leafless or furnished 
with a single reduced leaf above the middle. Spathe oblong; valves 
equal, oblong, 4 in. long or the outer longer and acute, green with a 
scariose margin. Perianth } in. long, shortly stipitate. Capsule not 
seen. 
a Mozamb. Dist. British Central Africa: Mount Mlanje, Whyte ! MceCOlounie, 
_ 2. A. zombensis, Baker. Radical leaves 5-6 to a stem, linear, 
rigid, strongly ribbed, 1 foot long, } in broad. Stem above 1 foot long, 
angled, not winged, bearing 3—4 distant leaves, the upper very 8™ 
and remote from the flowers. Inflorescence of 4—5 clusters, the lowest 
with a short erecto-patent peduncle, the others sessile; outer bracts 
