Acidanthera. | CXXXVI. IRIDEZ (BAKER). 359 
lower flowers. Perianth-tube cylindrical, curved at the top, 5-6 in. 
long ; limb 2 in. diam. ; segments ovate, cuspidate, subequal, white, all 
furnished with an ovate or lanceolate dark purple spot at the base. 
Stamens and style arcuate, much shorter than the perianth-segments,— 
Bot. Mag. t. 7393. Gladiolus equinoctialis, Herb. in Lindl. Bot. Reg. 
1842, Mise. 85. 
Upper Guinea, Sierra Leone: in crevices of bare gneiss rocks near the 
summit of Sugarloaf Mountain, 3000 ft., Scott-Elliot, 3954! Donovan ! and without 
precise locality, Don, 
Introduced into cultivation by Captain Donovan in 1893. 
3. A. gracilis, Pax in Engl. Jahrb. xv. 154. Corm small, globose. 
Produced leaves 2-3, narrowly linear, firm, erect, 3—4 in. long, $ in. 
broad. Stem simple, slender, under 1 ft. long, 1—2-flowered ; outer 
spathe-valve lanceolate, green, 11-1} in. long. Perianth white, tinged 
outside with red; tube slender, 2 in. long, scarcely dilated at the apex ; 
segments ovate, 1 in. long, not spotted at the throat. Stamens 
and style reaching halfway up the perianth-limb.—A. zanzibarica, 
Baker, Handb. Irid. 188. - 
Wile Land, British East Africa: near Mombasa, in heavy soil amongst grass 
Hildebrandt, 2015! Ukamba, Scott-Elliot, 2351 ! 
4. A. unicolor, Hochst. in Schimp. Pl. Abyss, No. 2304. Corm 
ovoid, 4 in. diam.; tunics brown, strongly reticulated. Produced 
leaves 3, suprabasal, superposed, linear, moderately firm, glabrous, 
6-9 in. long, + in. broad. Stem slender, 1 ft. long, not angled, simple 
or branched. Spikes very lax, 2?-3-flowered ; outer spathe-valve green, 
herbaceous, lanceolate, 4 in. long. Perianth white ; tube slender, 
23-3 in. long; segments oblanceolate, 4 in. long, without any purple 
spot at the base. Stamens rather shorter than the perianth-limb.— 
Baker, Handb. Irid. 188 ; Engl. Hochgebirgsfl. Trop. Afr. 175. Tritonia 
Schimperi, Aschers. & Klatt in Linnea, xxxiv. 697. 
Nile Land, Abyssinia: Tigre; near Goelleb on the River Tacazze, in woods 
and thickets, 4000 ft., Schimper, 2304! 
5. A. ukambanensis, Baker. Corm small. Produced leaves 3 
linear, erect, grass-like, glabrous, the lowest 7-8 in. long, 4 in. broad 
the others smaller. Stem slender, 1-1} ft. long. Spike simple, lax 
few-flowered ; spathe-valves green, lanceolate, the lower outer 2 in. long 
Perianth-tube 3 in. long, funnel-shaped in the upper third ; limb white 
I in. long, not spotted at the throat. Stamens shorter than the 
perianth-limb. 
Wile Land. British East Africa: Ukamba, on rocks, 5000-6000 ft., Scott- 
Elliot, 6434! 
6. A. laxiflora, Baker in Trans. Linn. Soc. ser. 2, Bot. ii. 850 
Corm globose, 4 in. diam.; tunics of matted fibres, reticulated upwards. 
Produced leaves 3, suprabasal, linear, moderately firm, p-o in. long, 
4-4 in. broad. Perianth white; tube slender to the apex, 3—4 in. long ; 
