4 CXXXI. HYDROCHARIDE® (WRIGHT). [ Lagarosiphon. 
the apex, quite entire. Male spathe axillary, solitary, sessile, ovate, 
with two deltoid lobes at the apex, surrounded by very slender teeth. 
Flowers about 30. Sepals 3, membranous, ovate. Petals 3, rather 
shorter and narrower than the sepals. Stamens 3, equal in length to 
the sepals and opposite to them. Female spathe axillary, solitary, 
sessile, oblong, opening by two triangular valves at the apex, surrounded 
by minute teeth. Perianth-tube long, slender ; outer lobes ovate ; 
inner ovate oblong, a little narrower and longer than the outer. Ovary 
oblong. Stigmas 3, bipartite—Hydrilla dregeana, Presl. Bot. Bemerk. 
112. Hydrilla muscoides, Planch. in Ann. Sci. Nat. Sér. 3, xi. (1849) 79. 
Lower Guinea. Angola: Huilla and Cunene, Johnston ! 
An imperfect specimen collected in Bechuanaland by Holub probably belongs to 
this species, 
7. L. crispus, Rendle in Journ. Linn. Soc. xxx. 381, pl. 31, figs. 
8-17. A small herb with stiffish stem. Leaves sometimes subopposite, 
linear, 6-7 lin. long, E lin. broad, more or less recurved, 3-nerved, the 
weak lateral nerves connected by slender transverse veinlets with the 
conspicuous midrib, teeth about 40, directed upwards from a triangular 
base consisting of several cells. Male spathes cup-like, sessile in the 
axils of the leaves on the main stem, 4 lin. long, several-flowered. 
Stamens 3 ; filaments short, apiculate ; anther-cells 2, pendulous, acute 
at the base. Female spathes solitary on the ultimate branches, flask- 
shaped, 2-fid, 1-flowered, 1 lin. long. Perianth-tube 9 lin. long; 
segments oblong, } lin. long. Stigmas papillose, 4 lin. long. Fruit 
broadly spindle-shaped, 14 lin. long. 
Mozamb. Dist. German East Africa: between the coast and Uyui, Taylor ! 
8. L. cordofanus, Casp. in Pringsh. Jahrb. i. 479 and 504. Stem 
terete, simple or sparingly branched. Leaves scattered, occasionally 
subopposite, linear, attenuated to a very acute point, 6—11 lin. long, 
4 lin. broad, 1-nerved, with 34—44 teeth on either margin. Stipules 2, 
intrafoliaceous, ovate or ovate-oblong, with 3—4 very short papille at 
the apex. Male spathe subglobose, 2-fid, 6—8-flowered. Stamens 3. 
Female spathe, axillary, tubular, slightly inflated below, 2-fid. Outer 
perianth segments 3, ovate; inner 3 narrowly oval. Staminodia 3, 
short. Ovary ovate. Stigmas 3, bipartite, lobes filiform.—Udora 
cordofana, Hochst. in Flora, 1842, i. Beibl. i. 133. 
Wile Land. Cordofan, Kotschy, 170! 
9. L. Fischeri, Giirke in Engl. PA. Ost-Afr. C. 95. Leaves 
alternate, linear-lanceolate, with 30-35 teeth on each margin. 
Stipules intrafoliaceous, very small, lanceolate, entire. Female spathe 
axillary. Perianth-tube tiliform; lobes oblong-elliptical, obtuse. 
Stigmas 3, bipartite. 
Mozamb. Dist. German East Africa: Masai Land, Fischer, 616. 
10. L. hydrilloides, Rendle in Journ. Linn. Soc. xxx. 381, pl. 32, 
jigs. 1-7. Stems nearly 1 lin. diam.; lower internodes 4 lin. long. 
