66 XI. LILIACER. [Littonio 
Pungo ANDONGO.—A glaucous-green herb with fleshy tuberous root, 
erect leafy stem 14 ft., subacutely many-angled, tough and firm, in 
the taller specimens flexuose towards the apex as if intending to climb. 
Leaves alternate, lanceolate, sheathing, slightly coriaceous, rigidulous,. 
lower ones pungent, upper with resinous dots on the upper surface 
between the nerves, acuminate tending to cirrhose, as in Gloriosa. 
Peduncles axillary, ebracteate, spreading, 6-angled, 1 to 2 in. long. 
Flowers nodding, orange-purple with dark purple spots. Perianth 
marcescent-persistent, segments subequal, campanulately spreading, 
acute, with a broad saccate basal nectary. Stamens flat, tapering from 
a broader base, anthers large, versatile. Ovary oblong, obtuse, tri- 
gibbous, deeply trisulcate. Style straight from a central pit, bearing 
at the top 3 recurved stigmas. Rather open sandy damp woods by 
streams near Cazella, but in a few places only. In fl. and unripe fr. 
Jan. 1857. Nos. 1747, 1748. 
23. WALLERIA Kirk ; Benth. & Hook. f. Gen. Pl. iii. p. 831. 
1. W. Mackenzii Kirk in Trans. Linn. Soc. xxiv. p. 497, t. 52, 
fig. 2 (1864); Baker in Journ. Linn. Soc, xvii. p. 499 (1879). 
W. angolensis Baker in Trans. Linn. Soc. ser. 2. i. p. 263: 
(1878); Durand & Schinz, Consp. Fl. Afr. v. p. 418. 
Huiiia.—A herb 1 to 2 ft. high with habit of Convallaria verticillata, 
with tuberous-digitate whitish fleshy roots. Stems erect, leafy to 
the top, acutely angled by the decurrent leaf-keels. Leaves semi- 
amplexicaul, lanceolate, subglaucous, subtrinerved, and slightly fleshy. 
Pedunceles axillary, erect-nodding, simple, rarely forked. Flowers pale 
azure, suberect, afterwards spreading or somewhat nodding ; perianth- 
segments elliptic-lanceolate, erect, subobtuse and subfleshy. Anthers 
long, pyramidately 4-angled, yellow, loculi dehiscing by a rounded 
apical aperture. Ovary ovate, with a central filiform style and slightly 
papillose stigma. Here and there in short thicket-grown sandy-clayey 
somewhat rocky pastures, near Lopollo along with Gnidia, Ascolepis 
and species of Huphurbia; flowering in the rainy season. In fl. Nov., 
in fl. and unripe fr. Dec. 1859. No. 1749. 
In the absence of adequate material, determination of the 
following is impossible :— 
Melanthacee Gen. and sp. nov. Welw. ms, 
Huiiia.—A slender bulbous herb a span high, with narrow-linear 
channelled sheathing leaves, sheaths long ; peduncles subaxillary, 
capsules trigonous. Stigmas three, arcuately spreading. Marshy places 
on the river near Lopollo. In fr. 26 March 1860. Cori. Carp. 1050. 
Represented only by a few seeds. 
XII. PONTEDERIACEA. 
1. EICHORNIA Kunth ; Benth. & Hook. f. Gen. Pl. iii. p. 838. 
1, E, natans Solms-Laub, in Abh. nat. Ver. Brem. vii. p. 254 
(1882), in DC. Mon. Phan. iv. p. 526 (1883); Durand & Schinz, 
Consp. Fl. Afr. v. p. 418, 
Loanpa.—Lagéa de Quifandongo, Dec. 1853. No. 3014, Subse- 
quently looked for in vain. 
