Angola. | CX. PODOSTEMACEH (BAKER AND WRIGHT). 123 
2. ANGOLA, Wedd. ; Benth. et Hook. f. Gen. Pl. iii. 111. 
Flowers hermaphrodite, each enclosed in an irregularly bursting 
spathella. Perianth-segments 2, minute (staminodia of Weddell). 
Stamens 3-4, unilateral; filaments slightly flattened, all free or two 
shortly connate at the base; anthers oblong; pollen-grains 2-celled. 
Ovary ovoid, shortly stipitate, 1-celled by the absorption of the septum ; 
placentas 2, central, fusiform; stigma at first laterally compressed, then 
capitate, subsessile, papillose; ovules anatropous. Capsule ovoid, 8- 
ribbed, dehiscing by 2 equal valves. 
Monotypic, endemic. 
1. A. fluitans, Wedd. in DC. Prodr. xvii. 300. A herb attached 
to rocks under water, “in appearance like seaweed” (Monteiro). Stem 
and primary branches floating, ‘‘thick, transparent and watery” 
(Monteiro), 14 in. long, green. Leaves 1-1} in. long, dichotomously 
divided into linear segments, the ultimate ones 3-4 lin. long. Flowers 
solitary near the sinus of the dichotomies, or 2—5 in umbellate cymes 
near the ends of branchlets; bracts similar to the leaves but shorter 
and with flattened segments; spathelle calyx-like, on a pedicel 1-4 lin. 
long, bursting by 3-5 unequal lobes. Stamens 3; filaments 2-3 lin. 
long ; anthers 14 lin. long, equally 2-lobed; pollen pale yellow; stami- 
nodia 2, linear or linear-lanceolate, 4 lin. long, entire, rarely divided. 
Ovary narrowly obovoid, shorter than the stamens. Capsule 1 lin. 
long, 4 lin. wide, 8-ribbed ; placentas before dehiscence of the capsule 
fixed to the base and apex of the cell, fusiform, marked at length with 
the scars of fallen seeds.— Wedd. in Journ. Linu. Soc. xiv. 210, t. 13; 
Oliv. in Hook. Ic. Pl. t. 2357; Warming in Kgl. Danske Vidensk. 
Selsk. Skrifter, ser. 6, ix. ii. 143, fig. 38. 
Lower Guinea. Angola: Quanza River, on submerged rocks at the rapids 
of Cambambe, seen nowhere else, Monteiro ! 
3. WINKLERELLA, Engl. Jahrb. xxxviii. 97. 
Flowers zygomorphic. Perianth-segments 2, minute, linear. Stamens 
2-3; filaments connate at least to the middle. Pollen-grains 1-celled. 
Gynophore becoming nearly as long as the ovary. Ovary compressed, 
2-toothed at the apex; stigmas 2, subulate-——Stems arising from a 
horizontal deeply lobed thallus, dichotomously branched; branches 
compressed. Leaves 2-4-fid, with filiform segments. Inflorescence 
lax, dichasial; ultimate branches 2-3-flowered; spathelle 5-6 times 
shorter than the-slender pedicels. 
Monotypic, endemic. 
1. W. dichotoma, Lgl. Jahrb. xxxviii. 97, fig. 2. Thallus 
irregularly radiating. Stems slender, up to 4 in. long, 3-4 times 
dichotomous. Leaves up to 1 in. long, with usually 2 filiform segments. 
