Burnatia. | . CLIL, ALISMACEZ (WRIGHT). 213 
minute, ventral, rostrate ; pericarp coriaceous. Seed broadly oblong; 
testa membranous ; embryo curved; radicle thickened at the end.— 
An erect, acaulescent, scapigerous, marsh herb. Leaves long-petioled ; 
lamina linear, or elliptic-lanceolate, acute ; nerves 7-9 with very slender 
oblique branches. Panicle verticillately branched, 3-bracteate at the 
nodes, male lax with slenderly pedicelled globose flowers, female 
contracted with much smaller subsessile flowers. 
Endemic, monotypic. 
1. B. enneandra, Micheli in DC. Monogr. Phan. iii. 81. Leaves 
lanceolate, rarely oblong, acute at both ends, 5-8 in. long, 7-18 lin. 
broad, membranous, with 7-9 weak nerves; petiole 5-16 in. long, com- 
planate. Scape erect, longer than the leaves; male panicle 12-16 in. 
long, female 8-10 in. long ; bracts membranous, lanceolate, up to 1 in. 
long; bracteoles small; pedicels up to 5 lin. long. Sepals 3, broadly 
ovate, obtuse, of the male erect, of the female patent but erect after 
flowering, 14-2 lin. long. Petals small, present in the male flowers 
only. Achenes discoid, dorsally 3-ribbed. Seed slightly rugose.—Engl. 
Pfl. Ost-Afr. ©. 94; Durand & Schinz, Conspect. Fl. Afr. v. 488. 
Alisma enneandra, Hochst. in Flora, 1842, Beibl. 133. Hchinodorus ? 
enneander, A. Br. in Schweinf. Beitr. Fl. Aethiop. 295, 309. 
Nile Land. CKordofan : at the edges of the stagnant pools near Arashkol 
Mountain, Kotschy, 192! British East Africa: Jur; near Jur Ghattas, Schwein- 
Surth, 2128! 2287! 
Mozamb. Dist. British Central Africa: Matabeleland ; Libanani Forests 
and Flats, Holub ! 
7. WISNERIA, M. Micheli; Benth. et Hook. f. Gen. Pl. iii. 1007. 
Flowers moneecious, minute. Perianth-segments membranous, 3 
‘persistent, or 5-6 in 2 series, the 3 outer equal or 2 smaller, concave 
and persistent, 2 or 3 inner much smaller and deciduous. Male flower: 
Stamens 3; filaments subulate; anthers basifixed, 2-celled, dehiscing 
longitudinally. Rudiment of ovary subulate. Female flower: Staminodia 
setaceous. Carpels 3-6, ovoid; style none or terminal and subulate ; 
. Stigma minute; ovule solitary, basal, anatropous. Achenes subglobose, 
broadly oblong or ellipsoid, compressed or turgid, obscurely costate, 
obtuse or beaked by the persistent style; pericarp thin or rather thick. 
‘Seed oblong or subglobose; testa membranous; embryo horseshoe- 
shaped ; radicle thickened.—Acaulescent, scapigerous, marsh or water 
‘herbs. Rhizome short, bearing thick root-fibres. Leaves long- 
: petioled, with the lamina more or less expanded; midrib evident. 
pe erect, unbranched; bracts united into truncate membranous 
campanulate sheaths surrounding the scape ; male flowers in the upper 
part of the scape, pedicellate, several subtended by 2-3 membranous 
lacerate bracteoles; female flowers in the lower part of the scape, 
. ebracteolate. 
Species 3, one in Malabar, another in Madagascar, and the following in Tropical 
Africa. : ¢ 
