126 CX. PODOSTEMACEE (BAKER AND WRIGHT). [ Dicrea. 
about 1 of the way up; anthers 2-celled. Stigmas linear, deflexed. 
Capsule equally 2-valved, 1 lin. long, $ lin. in diam.; valves 5-nerved, 
not toothed at the apex. 
Mozamb. Dist. Rhodesia: Livingstone Island, Victoria Falls, growing in the 
very swirl of the rapids, Kolbe, 3149 ! 
This much resembles the Brazilian Podostemon Chamissonis, Tul., in habit. 
2. D. Garrettii, C. 7. Wright. Stems seen 4 in. long, branched, 
compressed, horny. Leaves distant, about 1 lin. long, irregularly lobed. 
Flowers in terminal fascicles, each one inflexed within its spathella in 
bud; bracts 3 lin. long, sheathing at the base, lacerate above ; pedicel 
in fruit 6 lin. long; spathelle tubular, split down one side, 2 lin. long. 
Perianth-segments small, linear. Filaments 2 lin. long, overtopping 
the ovary, united rather more than half-way. Ovary ellipsoid, ribbed ; 
stigmas subulate; gynophore } lin. long. Capsule ? by } lin.; valves 
equal, 3-ribbed. 
Upper Guinea. Sierra Leone: Sherboro, Garrett / 
Imperfectly known species. 
3. Podostemon Tholloni, Baill. in Bull. Soc. Linn. Paris, ti. 877. 
Spathella pyriform, unequally toothed. Perianth-segments linear. 
Stamens 2; filaments united below; anthers oblong, 2-celled. Style- 
branches 2, linear, recurved. 
Lower Guinea. French Congo: rapids in the Lope River, Thollon, 825.. 
In the absence of a description of the capsule it is impossible to refer this with 
certainty to any genus, but all the above-mentioned characters agree with those of 
Dicrea. 
6. DICRHANTHUS, Engl. Jahrb. xxxviii. 94. 
Flowers zygomorphic. Perianth-segments 2, minute. Stamens 2 ; 
filaments free or united only at the base; anthers shortly lobed at both 
ends, longer than the filaments; pollen-grains 2-celled. Gynophore 
3-} the length of the elongate-clavate 2-celled ovary ; placenta central, 
cylindrical, many-ovuled; stigmas small, subulate. Capsule pale 
brown; valves linear, 5-nerved, remaining after the fall of the placenta. 
—Stems arising from a horizontal thallus attached to rocks, floating, 
long and much-branched ; branches angular. Leaves deeply 2-3-fid; 
segments narrowly linear, but not capillary. Cymes unilateral, the 
lower 6-20-, the upper 1-5-flowered; peduncles clustered; pedicels 
many times longer than the spathelle. : 
Species 2, endemic. 
Pedicel 2-3 in. long; spathella split down one side. 
: . iI. D. africanus. 
Pedicel } in. long; spathella splitting irregularly . 
. 2. D. pusillus. 
