120 CIX. POLYGONACEE (BAKER AND wRIGHT). [Brunnichia. 
Perianth-lobes during flowering patent, in fruit erect and conniving, 
lanceolate, acuminate. Stamens 5, inserted on the base of the perianth- 
lobes. Styles connate at the base. Fruit subglobose, about 3 lin. in 
diam.; pedicel 2 in. long, 5 lin. wide across the wing.—Dammer in 
Engl. Jahrb. xxvi, 357. 
Upper Guinea. Lagos: Ejan, Millen, 140! 
Lower Guinea. Gaboon: Sibange Farm, Soyaur, 152! 382! 
Imperfectly known species. 
3. B. congoensis, Dammer in Engl. Jahrb. xxvi. 357. Branches 
terete, glabrous. Leaves broadly oval, shortly acuminate, thick, re- 
curved at the margin, glabrous, about 2 in. long, 14 in. wide; petiole 
4 lin. long, glabrous. Racemes about 5 in. long; tendrils glabrous ; 
bracts lanceolate or oval, fleshy, scarious at the margin; pedicels 1 lin. 
long. Perianth-segments 23 lin. long, #—-14 lin. wide. 
Lower Guinea. Congo Free State: between Lukolela and the equator, 
Biittner, 312. 
Dammer founds this on Biittner, 312, and quotes as a synonym B. africana, var. 
erecta (Aschers.) Biittner, in Mitteil. Afrikan. Gesellsch, 1888, 257, a publication 
which I have not seen. This latter name is also included in Durand and Schinz’s 
Etudes Fl. Congo, i, 236. B. congoensis does not appear to differ by any valid character 
from B. erecta. 
OrpderR CX. PODOSTEMACE. (By J. G. Baker, 
with additions by C, H. Wright.) 
Flowers regular, hermaphrodite or dicecious. Perianth inferior, 
membranous, 3-5-partite or represented by minute scales or entirely 
absent. Stamens hypogynous, 1 to many; filaments free or united ; 
anthers oblong, 2-celled, dehiscing longitudinally ; pollen 1—2-celled. 
Ovary sessile or stipitate, 1-3-celled; styles 2-3; stigmas capitate or 
decurrent; plucentas axile or parietal; ovules many, anatropous. 
Capsule 1—3-celled, dehiscing by valves, often septifragal. Seeds many, 
minute, sessile, exalbuminous; cotyledons flat; radicle very short.— 
Submerged herbs of various habit, often resembling mosses, foliaceous 
and frondose hepatice and alge. Flowers minute, variously arranged. 
Species about 130, chiefly in the tropics and subtropics of the Southern 
Hemisphere. : 
Flowers hermaphrodite. 
Perianth equally 3-partite . . : . I. Trisricwa. 
Perianth of 2 small linear segments. 
Stamens 3; filaments free or nearly so : . 2. ANGOLZEA. 
Stamens 2; filaments united in the lower half, 
Capsule compressed, almost winged . ° . 3, WINKLERELLA. 
Capsule not compressed, smooth . : . 4, LEIOTHYLAX. 
