Lagarosiphon.'] cxxxi. HYDROCHARiDEiE (wright). 3 



1. Ij. Nyassse, 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. 3>ist. Lake Nyasa : Liviugstonia, Lavos^ 7 ! 



2. Ij, xoibellay Ridl. in Journ. Linn. Soc. xxii. 234. 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, 1 J lin. long. 



dLo-wer Guinea. Angola : Huilla, Welwitsch, 6472 ! 



3. L, Schweinfarthii, Casp. in Bot. Zeit. 1870, 88. Stem terete, 

 J lin. thick. Leaves scattered, linear-lanceolate, acute, 7 lin. long, 

 ^ 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 papillae. Female spathe 

 subentire at the apex, with 2-3 teeth on either side. 



Wile Iiand, Jur, Schtveinfurth, 2457 ! Bongo, SchweinfurtJi, 2158 ! 



4. Ii. Steudneri, Casp. in Schweinf. Beitr. Fl. jEthiop. 200, t. 4. 

 Leaves linear-lanceolate, acute 5-8 lin. long, nearly 1 lin. ^vide, 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. 



ITile Kand. Abyssinia : Wadela, Sieudner, 640 ! 



5. Ij, tenxsiSy Eendle in Journ. Linn. Soc.xxx. 380, pi. SI, figs. 1-7. 

 A slender moss-like plant. Leaves crowded, linear, 4-5 lin. long, 

 J- J lin. broad at the base ; apex subobtuse ; margin with about 30 teeth 

 directed upwards. Stipules minute, subulate. Female spathe 1 lin. 

 long, bifid J of its length. Perianth J in. long ; tube | in. long ; 

 segments oblong linear, J lin. long. 



Wile Ziand. British East Africa : Kinani, East Ongalea Mountains, 2200 ft., 

 Gregory ! 



G. L. xnuscoides, 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 



