318 XCIl, SCROPHULARIACEA (HEMSLEY AND SKAN).  [LZimnophila. 
multifid ; segments capillary, sparingly pilose. Flowers axillary, sub- 
sessile ; bracteoles capillary, about 1 lin. longer than the calyx. Calyx 
2} lin. long, membranous, glabrous, gland-dotted, 5-fid; teeth about 1 
lin. long, obtusely acuminate. Capsule ellipsoid, 14 lin. long, bisulcate, 
emarginate. Seeds (unripe) rather large, several, ellipsoid-ovoid, smooth, 
with a protruding hyaline aril at the base.—Stemodiacra ceratophylloides, 
Hiern in Cat. Afr. Pl. Welw. i. 759. Stemodia ceratophylloides, K. 
Schum. in Just, Jahresber. xxvi. i. 395. Ambulia ceratophylloides, 
Engl. & Gilg in Warb. Kunene-Samb. Exped. 362, in note. 
Lower Guinea. Angola: Huilla; streams and pools between Lopollo and 
Humpata, in Moro de Lopollo, and on the Humpata Plateau near Nene, Welwitsch, 
5778! 
4. L. sessiflora, Blume, Bijdr. 749. An annual with crowded 
glabrous or pubescent sparingly branched floating or partly submerged 
stems. Leaves verticillate, 4—8 lin. long; submerged leaves multitid, 
with long narrowly linear lobes; upper leaves incised or dentate. 
Flowers axillary, sessile or subsessile; bracts linear, shorter than the 
calyx. Calyx membranous, 2 lin. long, shortly pubescent outside or 
glabrous, gland-dotted, 5-fid; teeth 3? lin. long, rather acute. Corolla 
34-4 lin. long, violet-whitish tinged with yellow on the tube. Anthers 
coherent in pairs; cells very shortly stipitate. Style 1} lin. long, 
bilamellate at the apex. Capsule shorter than the calyx, bisulcate, 
somewhat compressed. Seeds obtusely angular.— Hook. f. Fl. Brit. Ind. 
iv. 270; Benth. in DC. Prodr. x. 389. Stemodiacra sessiliflora, Hiern 
in Cat. Afr. Pl. Welw. i. 758. Ambulia Baumii, Engl. & Gilg in 
Warb. Kunene-Samb. Exped. 361, t. 7, figs. F, G. 
Lower Guinea. Angola: Huilla; in streams, from Lopollo to Nene and 
towards Ohai, Welwitsch, 5776! and from Lopollo to Catumba, Welwitsch, 5777! 
Amboella ; Kutue River, 3900 ft., Baum, 750! 
Also in India, Ceylon, Java, China and Japan. 
5. L, dasyantha, Skan. An aquatic herb with stems up to 2}ft. 
long, leafless below. Lower leaves in whorls of about 10, 14 in. long, 
multipartite, segments long, capillary, sparingly pilose; upper leaves 
opposite, 2—3 lin. long, narrowly oblong to broadly ovate, semiamplexi- 
caul, minutely dentate, gland-dotted. Flowers sessile, alternate, rather 
crowded in short terminal spikes; bracts alternate, narrowly oblong, rather 
longer than the calyx. Calyx membranous, 13-24 lin. long, sparingly 
pilose, gland-dotted ; teeth }-1 lin. long, ovate, subacute. Corolla 6-8 
lin. long, yellow ; tube pilose outside and inside; upper lip 1 lin. long, 
shortly 2-lobed ; lower lip 2 lin. long, deeply 3-lobed. Anthers free or 
coherent in pairs; connective flat, suborbicular ; cells very shortly 
stipitate. Style biauriculate just below the apex. Capsule 1} lin. 
long, ellipsoid, glabrous, 4-valved. Seeds 3 lin. long, pallid, scrobicu- 
late—<Ambulia dasyantha, Engl. & Gilg in Warb. Kunene-Samb. 
Exped. 362, t. 7, figs, A-E. 
Upper Guinea. Sierra Leone: stagnant water near Bentembu, Scott- 
Elliot, 5862. 
