66 XI. LiLiACEiE. [Littonia 



PuNGO AxDONGO. — A glaucous-green herb with fleshy tuberous root, 

 erect leafy stem H 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 Gloriusu. 

 Peduncles axillary, ebracteate, spreading, G-angled, 1 to 2 in. long. 

 Flowers nodding, orange-purple with dark purple spots. Perianth 

 marcescent-persisteut, 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. PI. 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. anyolensis Baker in Trans. Linn. Soc. ser. 2. i. p. 263 

 (1878); Durand & Schinz, Consp. Fl. Afr. v. p. 418. 



HuiLLA. — A herb 1 to 2 ft. high with habit of Convallaria vert/ cil lata, 

 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. 

 Peduncles 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 therein short thicket-grown sandy-clayey 

 somewhat rocky pastures, near Lojjollo along with GnkUa, Ascolepis 

 and species of EtqjJwrbia ; 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 : — 



Melanthaceae Gen. and sp. nov. Welw. ms. 



HuiLLA. — 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. Coll. Carp. 1050. 

 Represented only by a few seeds. 



XII. PONTEDERIACE^. 

 1. EICHORNIA Kunth ; Benth. & Hook. f. Gen. PI. 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. 



LoANDA. — Lagoa de Quifandongo, Dec. 1853. No. 3014. Subse- 

 quently looked for in vain. 



