2 I, HYDROCHARIDES. [ Ottelia. 
2. 0. plantaginea Welw. ex Ridl., 2c.; Durand & Schinz, Je. ; 
Wright, Jc. 
Huriia.—Spathes with numerous acute teeth ; flowers yellow ; root- 
fibres copper-coloured, shining. In masses in ponds close to the river-- 
banks near Catumba, where the camp of the Monani was formed at the 
time of the invasion. April 1860. No. 6469. 
3. 0. vesiculata Ridl., Uc, p. 287; Durand & Schinz, dc. ; 
Wright, Zc. 
Houitia.—An acaulescent herb $ to 2 ft., with 6-androus, 7-carpellary 
yellow flowers which at time of pollination float on the surface of the 
water ; styles several or all bifid. Spathe loosely enclosing the fruit, 
inflated, filled with water, compressed, broadly ovoid, purple-banded 
on the outside, mouth bidentate finally torn. ‘Leaves originally some-- 
what stiff, fragile, bright pellucid green; scape slightly flattened, 
shortly 2-winged, gradually thickened a little below the spathe, 
tetragonal, lateral angles acutely winged. Ovary in the several fruits. 
examined always incompletely 9-locular. Plentiful in slowly flowing 
streams and clear ponds near Lopollo, Mumpulla, etc., along with 
species of Myriophyllum, Isnardia, Nymphea and Potamogeton. In 
fl. end of Oct. 1859 ; in fl. and fr. April 1860. No. 6467. 
4. 0. crassifolia Welw. ms. 
Boottia crassifolia Ridl., c., p. 239; Durand & Schinz, Lc.; 
Wright, l.c., p. 9. 
As the flowers are §¥ and solitary in the spathes, the species 
belongs to the genus Ofelia, as Welwitsch suggested, and not to 
Boottia. 
Houitita.—A fleshy subrigid herb, growing erect from the muddy 
bottom, hidden 1 to 2 fathoms deep in flood-time. Leaves 2 to 3 ft., 
erect. Flowers yellow. Fruit flattened cylindrical, deeply 7-furrowed 
on both sides. Rather rare in the deeper ponds and streams round 
Mumpulla and Lopollo, only flowering in almost dried-up ponds. In 
fr. Oct. 1859, in fl. and fr. April 1860. No. 6470. 
Il. BURMANNIACE. 
1, BURMANNIA L.; Benth. & Hook. f. Gen. Pl. iii. p..457. 
1. B. bicolor Mart. Nov. Gen. et Sp. i. p. 10, t. 5, fig. 1 (1824), 
Var. africana Ridl. in Journ. Bot. 1887, p. 85; Wright in Fl. 
Trop. Afr. vii. p. 11. 
Hvitia.—An annual very slender herb one digit high. Leaves and 
stem herbaceous-green, upper part of stem purplish. Flowers deep 
blue or deep violet marked with bright yellow, terminal, 3 or 4 together. 
In spongy wooded meadows of Monino with species of Eriocaulon 
Xyris, Primula, and Scleria, fairly plentiful where it occurs, but found 
only in a few localities. In fl. and fr. Feb. 1860. No. 6473. 
Gregarious in a few localities in lofty spongy places, and in rather 
damp sandy places, at Morro de Lopollo, near Sambo, growing along 
‘ae ae iB a oe with a thin but rich soil. In 
. April and Ma - Nos. 6474, 6474). Marshy pl ; 
in fr. Feb. 1860. Cott. Carr.68,.” a a 
