214 CLii. ALisMACE^ (wright). [Wisueria. 



1. We Schweiafarthii, Hooh.f. in Benth. et Hook. f. Gen. PI. iii. 

 1007. Petiole sheathing at the base, 9 in. long, robust ; lamina oblong 

 or oblanceolate, obtuse, up to 6 in. by G lin. ; lateral nerves 1 on either 

 side. Scape about as long as the leaves ; whorls of bracts at length 

 6-9 lin. apart. Perianth-segments 3. Achcnes compressed, 3-ribbed, 

 Ij lin. long, beak 1 lin. long. 



wrile Ztand. British East Africa : Bongo ; Gir, Schweinfurthy 2157 ! Jur ; 

 Jur Ghattas, Sclitveinfurth, 2304 ! 



8. BUTOMOPSIS, Kunth ; Benth. et Hook. f. Gen. PI. iii. 1008. 



Flowers hermaphrodite. Sepals 3, persistent, erect after flowering, 

 imbricate. Petals 3, smaller than the sepals, fugacious. Stamens 9 

 '(rarely fewer), in two whorls; filaments flattened; anthers 2-celled, 

 basifixed, extrorse. Carpels 6 or fewer, verticillate, slightly connate on 

 the ventral side near the base; styles short; stigmas lateral; ovules 

 numerous. PoUicles usually 6, tapering above into the persistent 

 style, dehiscing along the ventral suture. Seeds numerous, curved ; 

 testa nearly smooth ; embryo horseshoe-shaped. — A scapigerous marsh 

 herb, with milky juice. Leaves radical, erect, petiolate. Flowers in 

 umbellate cymes ; pedicel elongated in fruit ; bracts membranous. 



Species 1, extending into Tropical India and Australia. 



1. B, lanceolata, Kunth^ Enum. iii. 1G5. Rhizome short, bearing 

 numerous slender rootlets. Leaves narrowly ovate, acute, tapering 

 below into the petiole, membranous, entire, glabrous, with 2-6 secondary 

 nerves pinnately arranged and converging towards the apex, up to 4 in. 

 by IJ in. ; petiole smooth, up to 10 in. long. Scape usually about 

 6-flowered, overtopping the leaves ; peduncle terete, glabrous, up to 1 ft. 

 long ; bracts broadly ovate, acuminate, up to 9 lin. long ; pedicels up to 

 4 in. long in fruit, usually straight. Sepals broadly ovate, acute 

 or subobtuse, persistent and sheathing the base of the fruit. Petals f as 

 long as the sepals, obovate, obtuse, fugacious, white. Stamens 9 or 

 fewer ; filaments dilated below ; anthers shorter than the filaments, 

 oblong. Ovaries ovoid. Follicles ovoid-oblong, acute, connate below, 

 obscurely keeled on the dorsal side. Seeds scarcely J lin. long ; testa 

 crustaceous — Schweinf . Beitr. Fl. Aethiop. 206 ; Benth. Fl. Austr. vii. 

 187 ; Micheli in DC. Monogr. Phan. iii. 87 ; Hook. f. Fl. Brit. Ind. vi. 

 562. Butomus senegalensis, Perrottet ex A. Br. in Flora, 1843, 499. 

 TenagochaHs cor do/ana, Hochst. in Flora, 1841, 369. T. alismoides, 

 Hochst. in Flora, 1842, Beibl. 134 ; A. Br. in Flora, 1843, 499. T. lan- 

 ceolata. Durand & Schinz, Conspect. Fl. Afr. v. 489. 



Upper Guinea. Senegal, Roger, 65 ! Senegambia, JTetidelof, 126 ! Niger 

 Territory : Nupe ; in swaraps, Barter, 1509 ! 



xrile Zsand. Kordofan : in stagnant pools near Arashkol mountain, Kotschy^ 

 193 ■ in the White Nile at Omkenen, near Arashkol mountain, Steudner, 687 ! 



Also in Northern India and Queensland. 



