MONOCOTYLEDONS. 
I. HYDROCHARIDE A. 
1. LAGAROSIPHON Harv. ; Benth. & Hook. f. Gen. Pl. iii. 
(part 2, Apr. 1883) p. 450. 
1. L. rubellus Ridl. in Journ. Linn. Soc. xxii. p. 234; Durand & 
Schinz, Consp. Fl. Afr. v. p. 2; Wright in Fl. Trop. Afr. vii. p. 3. 
Hovitta.—Habit of Ceratophyllum, inhabiting the rivers in great 
masses, herbaceous-green, stems densely cespitose, elongated, 3 to 5 ft. 
long, purplish, slender, leaves opposite, linear ; flowers dicecious, with 
a long (3 to 8 in.) capillary tube, at the time of pollination floating 
on the surface of the water, reddish, very small, trimerous? Ovary 
many-ovuled, subsessile within a tubular spathe with gaping apex in 
the leaf-axils. Plentiful in the river Quipumpunhime and other deeper 
streams round Humpata and Ohai, growing along with species of 
Utricularia and Potamogeton ; fl. and fr. April 1860. Nos. 6472, 64720. 
2. BLYXA Thou. ; Benth. & Hook. f. Gen. Pl. iii. p. 451. 
1. B. radicans Rid]. in Journ. Linn. Soc. xxii. p. 236,t.14; Durand 
é& Schinz, Consp. Fl. Afr. v. p.3; Wright in Fl. Trop. Afr. vii. p. 6. 
Houiiia.—A_ perennial herb, dioecious; male flowers 6-androus, 
petals white, sepals herbaceous ; female flowers with white petals, a 
little longer and narrower than the male. Fruit a long cylindrical 
berry. Plentiful in masses in the clear streams near Lopollo, especially 
at the Cataracts ; somewhat rarely flowering. Not seen elsewhere in 
Angola and Benguella. In fl. and with unripe fr. beginning of May 
1860. No. 6471. 
3. OTTELIA Pers. ; Benth. & Hook. f. Gen. Pl. iii. p. 453. 
1. 0. lancifolia Rich. Tent. Fl. Abyss. ii. p. 280, t. 95 (1851) ; 
Ridl, in Journ. Linn. Soc. xxii. p. 238; Durand & Schinz, Consp. 
Fl. Afr. v. p. 4; Wright in Fl. Trop. Afr. vii. p. 7. 
AmBaca.—Plentiful in lake to the left of the river Caringa. In 
fl. and fr. June 1855. No. 6466. 
Var. fluitans Ridl., 1.c.; Durand & Schinz, Jc. ; Wright, lc. 
Puneo Anponco.—An elegant herb, swimming ; with fibrous root. 
Flowers very delicate, very fragile when dry, intensely yellow. 
Plentiful with species of Nymphea in ponds on the lofty rocks of 
the presidium. Pedra Songue, on the lower ridge. In fl. middle of 
February, in fr. April 1857. No. 6468. 
voL. II. 1 
