Lagarosiphon. | CXXXI. HYDROCHARIDE# (WRIGHT). 3 
1. L. Nyasse, Ridl. in Journ. Linn. Soc. xxii. 234. A slender, 
moss-like plant. Stems extremely thin. Leaves linear-lanceolate, 
acute, 4—5 lin. long, 1 lin. wide, with 26-33 subappressed teeth on each 
margin. Female flowers very minute. Spathe lanceolate subentire. 
Perianth-tube 1 in. long, capillary ; lobes lanceolate, obtuse. Ovary 
conical, Style deeply cleft. 
Mozamb. Dist. Lake Nyasa: Livingstonia, Laws, 7! 
2. L. rubella, Ridl. in Journ. Linn. Soc. xxii. 284. Stems 3-5 ft. 
long, slender, purple; internodes 4 lin. long. Leaves subopposite, 
linear, acuminate, 3 lin. long, extremely narrow; teeth about 30 on 
each margin, short. Male spathe short, obconic, 2 lin. long. Stamens 
many. Female flowers minute, reddish. Bracts pale, ovate, obtuse, 
shorter than the fruit, with ten teeth on either margin. Spathe quite 
entire. Perianth-tube 14 lin. long, very slender; lobes ovate rotun- 
date, very obtuse. Ovary elongated, conical. Capsule 2 lin. long. 
Seeds 3, fusiform, 14 lin. long. 
Lower Guinea. Angola: Huilla, Welwitsch, 6472! 
3. L. Schweinfurthii, Casp. in Bot. Zeit. 1870, 88. Stem terete, 
3 lin. thick, Leaves scattered, linear-lanceolate, acute, 7 lin. long, 
ž line or less wide, the 3 marginal rows of cells with less chlorophyll 
than the central ones; teeth 51-59 on each side. Stipules 2, intra- 
foliaceous, obovate, obtuse; margin with a few papillæ. Female spathe 
subentire at the apex, with 2-3 teeth on either side. 
Nile Land, Jur, Schweinfurth, 2457! Bongo, Schweinfurth, 2158! ` 
4. L. Steudneri, Casp. in Schweinf. Beitr. Fl. Hthiop. 200, t. 4. 
Leaves linear-lanceolate, acute 5-8 lin. long, nearly 1 lin. wide, with 
81-87 teeth on either side, the 2—3 rows of marginal cells narrower, 
longer and with less chlorophyll than the rest. Stipules lanceolate- 
oblong, entire attenuated towards the apex. Female spathe oblique 
and entire at the mouth. -Perianth-tube twice as long as the leaves ; 
lobes ovate. Stigmas 3, 2-fid. 
Nile Land. Abyssinia; Wadela, Steudner, 640! 
5. L. tenuis, Rendle in Journ. Linn. Soc. xxx. 380, pl. 31, figs. 1-7. 
A slender moss-like plant. Leaves crowded, linear, 4-5 lin. long, 
4-4 lin. broad at the base ; apex subobtuse ` margin with about 30 teeth 
directed upwards. Stipules minute, subulate. Female spathe 1 lin. 
long, bifid 4 of its length. Perianth ł in. long; tube ł in. long; 
segments oblong linear, 4 lin. long. 
Nile Land. British East Africa: Kinani, East Ongalea Mountains, 2200 ft., 
Gregory ! 
6. L. muscoides, Harv. in Hook. Journ. Bot. iv. (1842) 230, t. 
22. Stem slender, 1-2 ft. long. Leaves alternate or subopposite, 
linear, very acute, 1-nerved, the 4—5 marginal rows of cells destitute 
of chlorophyll ; teeth 40-60, very acute. Stipules oval, attenuated at 
