Aiigolcea.] ex. PODOSTEMACEiE (baker and WRIGHT). 123 



2. ANGOL^A, Wedd. ; Benth. et Hook. f. Gen. PI. 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. 



Mouotypic, 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" 

 (Mo7iteiro)y 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 ; spathelise calyx-like, on a pedicel 1-4 lin. 

 long, bursting by 3-5 unequal lobes. Stamens 3 ; filaments 2-3 lin. 

 long ; anthers 1 J lin. long, equally 2-lobed ; pollen pale yellow ; stami- 

 nodia 2, linear or linear- lanceolate, J lin. long, entire, rarely divided. 

 Ovary narrowly obovoid, shorter than the stamens. Capsule 1 lin. 

 long, J 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. Linn. Soc. xiv. 210, t. 13 ; 

 Oliv. in Hook. Ic. PI. t. 2357 ; Warming in Kgl. Danske Vidensk. 

 Selsk. Skrifter, ser. 6, ix. ii. 143, fig. 38. 



Jtovrer Guinea. Angola: Qiianza River, ou 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 ; spathellae 5-6 times 

 shorter than the slender pedicels. 



Monotypic, eudemic. 



1. W. dichotoma, Engl. Jahrh. xxxviii. ^7,Jig. 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. 



