210 CLii. ALiSMACEiE (wright). [Limnopkytou . 



Fl. Aethiop. 295 ; Micheli in DC. Monogr. Phan. iii. 39 ; Hook, f . Fl. 

 Brit. Ind. vi. 560 ; Engl. Pfl. Ost-Afr. C. 94 ; Rendle in Cat. Afr. PI. 

 Welw. ii. 93. Sagittaria obtusifolia, Linn. Sp. PI. ed. i. 993 ; Speke, 

 Nile, Append. 650; Baker in Trans. Linn. Soc. xxix. 157, t. 102. 

 ^S'. nymphadfolia, Hochst. ex Buchen. in Flora, ]865, 246. Alisma 

 sayittifolia, Willd. Sp. PI. ii. 277 ; Benth. in Hook. Niger Fl. 528 ; 

 Schweinf. Beitr. Fl. Aethiop. 206. A. Kotsckyi, Hochst. in Flora, 1841, 

 Intellif?.-bl. 44, and 1843, 499. A. ohtusifolinm, Thwaites, Enum. PI. 

 Zeyl. 332. Dipseudochorion sagittifolium, Buchen. in Flora, 1865, 

 245. 



Upper Guinea. Senegal, Roger, 60 ! Perrottet, 807 ! Senegambia, Perrottet ! 

 Seudelot, 231 ! Sierra Leone : in wet places at Likuru and common up to Farana, 

 Scott-Elliot, 4972 ! Niger Territory : Nupe, in swamps, Barter, 1532 ! 



KTlle Iiand. Kordofan : Arashkol Mountain : at Omkenem, Steudner, 685 ! 

 Kotschy, 169 ! Birket Rahad, Pfund, 407 ! 798 ! British East Africa : banks of 

 the Nile, at Abu Kuka, PetJierick ! and at Gondokoro, Speke Sf Grant, 767 ! 

 White Nile, without' precise locality, Sahatier ! coast, near Lamu Island, Hilde- 

 hrandt, 1319! 1912! 



Iiower Guinea. Angola : Icolo e Bengo ; plentiful at the muddy marshy 

 edges of Lagoa de Funda, near Funda, Welwitsch, 3010 ! 



XHozamb. Z>ist. Portuguese East Africa : Lower Zambesi ; in a marsh at 

 Lupata, Kirk ! at N'Kueza (Ankweza), north of Sena, Kirk ! British Central 

 Africa : Tanganyika to Moero Plateau, Carson, 40 ! Ngamiland ; Botletle Valley, 

 Lugard, 206 ! 



3. LOPHOTOCARPUS, Durand, Index Gen. Phan. x. and 627. 



Flowers hermaphrodite and male, monoecious. Sepals 3, distinct, 

 persistent, sheathing in fruit. Petals 8, deciduous, imbricate. Stamens 

 9-15, hypogynous ; filaments complanate; anthers 2-celled, extrorse, 

 oblong, cells adnate to the connective. Carpels numerous ; ovules 

 solitary, basal, erect, anatropous ; style apical, long, oblique, persistent. 

 Achenes densely congested on a convex receptacle, much laterally com- 

 pressed. Seed basal ; testa thin, punctate ; embryo horseshoe-shaped ; 

 radicle thick. — Marsh herbs. Leaves radical,, of ten floating, sagittate, 

 with a network of laticiferous vessels ; petiole long. Scape unbranched ; 

 flowers 2-3 in each verticil, lower hermaphrodite, upper hermaphrodite 

 and male ; bracts membranous. — Lophiocaiyus^ Miq. 111. Fl. Arch. 

 Ind. 50, not of Turcz. Sagittaria, Sect. Lophiocarpus, Benth.- et 

 Hook. f. Gen. PI. iii. 1006. 



Species 3, one in North America, another in Brazil, and the following in Tropical 

 Asia, Africa and America. 



1. L. guyanensis, Durand d: Schiyiz, Cpnsjoect. Fl. Afr. v. 487. 

 Khizome short, densely covered with rootlets. Leaves widely ovate- 

 cordate, floating, obtuse or slightly emarginate, 2 in. long, 1\ in. broad, 

 occasionally some submerged leaves with reduced blades are present ; 

 petiole varying in length with the depth of the water, transversely 

 septate inside. Scape erect or procumbent, bearing few-flowered whorls 



