Leiothylax.| CX. PODOSTEMACEE (BAKER AND WRIGHT), 125 
irregularly, about 4 the length of the pedicel. Perianth-segments 2, 
small, linear, acute. Filaments 3 lin. long, united in the lower two- 
thirds ; anthers oblong, cells slightly divergent above. Gynophore up 
to twice as long as the ovary. Ovary globose, smooth, many-ovuled ; 
stigmas linear-spathulate, 4 the length of the ovary. Capsule globose, 
brown, quite smooth, ? lin. in diam.—Dicrea quangensis, Engl. Jahrb. 
xx. 134, t. 4, figs, A~K. Letocarpodicrea quangensis, Engl. Jahrb. 
XXXVili, 98, 
Lower Guinea. Angola: Bismarck Falls on the Quango River, on stones in 
quickly running water, Zeusez, 506. 
3. L. violascens, C. H. Wright. Whole plant violet. Stem 
short. Leaves about 1 in. long, dichotomously divided ; segments very 
narrow. Bracts approximate near the apex of the stem, similar to the 
leaves, sheathing or shortly biauriculate at the base ; spathellz sessile, 
oblong when closed, cup-shaped and toothed when ruptured, about 1 lin. 
long; pedicel about 1 lin. long. Perianth-segments } lin. long, linear- 
subulate, acute. Androphore variable in length, sometimes as long as 
the gynophore and ovary. Filaments as long as the oblong anthers. 
Ovary oblong, shortly stalked. Capsule oblong, brown, lin. long, $ lin. 
in diam.—Dicrea violascens, Engl. Jahrb, xxx. 312. Letocarpodicrea 
violascens, Engl. Jahrb, xxxviii. 98. 
Mozamb, Dist. German East Africa: Kinga (Livingstone) Mountains, on 
boulders in the bed of the River Diroro, 7000 ft., Goetze, 943. 
5. DICRABA, Thouars, Gen. Nov. Madag. 2 (Dicr«1, by error) 
Flowers herinaphrodite, at first enclosed in a spathella. Perianth- 
segments 2, minute, linear. Stamens 2; filaments united below; 
anthers ovate, 2-celled, dehiscing longitudinally; pollen-grain with 
two globose cells. Ovary ellipsoid, sessile or nearly so, ribbed, 2-celled, 
many-ovuled ; stigmas 2, free, short, terete or compressed. Capsule 
ellipsoid, 8-12-ribbed, 2-celled; valves 2, equal.—Submerged herbs. 
Stems elongated, rarely frond-like, branched or subsimple. Radical 
leaves variable, cauline scale-like. Flowers terminal on short branchlets, 
—Podostemon, Benth. et Hook. f. Gen, Pl. iii. 112, partly. 
Species about 10, the others in the Mascarene Islands and India, 
Flowering branches with numerous short imbricate 3- 
lobed leaves. . ° . . : . 1, D, tenaz, — 
Flowering branches with few long lacerate leaves . . 2. D. Garrettii. 
1. D. tenax, C. H. Wright. Plant of a bronze colour and horny 
consistency (Kolbe). Stem much-branched, portion seen 2 in. long, 
lin. in diam., slightly compressed. Leaves numerous, scattered 
below, imbricate on the flowering branches, quadrate, deeply 3-lobed, 
3 lin. long and wide: Spathella tubular, irregularly toothed, green, 
1 lin. long; pedivel-inflexed in bud, Stamens 2; filaments united 
