MONOCOTYLEDONS. 



I. HYDROCHARIDE^. 



1. LAGAROSIPHON Harv. ; Benth. & Hook. f. Gen. PI. iii. 

 <part 2, Apr. 1883) p. 450. 



1. L. rubellus Eidl. in Joum. Linn. Soc. xxii. p. 234 ; Durand & 

 Schinz, Consp. Fl. Afr. v. p. 2 ; Wright in Fl. Trop. Afr. vii. p. 3. 



HuiLLA. — Habit of Ceratopliijllum^ inhabiting the rivers in great 

 masses, herbaceous-green, stems densely csespitose, elongated, 3 to 5 ft. 

 long, purplish, slender, leaves opposite, linear ; flowers dioecious, 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 

 Uiricularia and Potamogeton ; fl. and fr. April 1860. Nos. 6472, 64726. 



2. BLYXA Thou. ; Benth. & Hook. f. Gen. PI. iii. p. 451. 



1. B. radicans Eidl. in Journ.Linn. Soc. xxii. p. 236, 1. 14; Durand 

 <fe Schinz, Consp. Fl. Afr. v. p. 3 ; Wright in Fl. Trop. Afr. vii. p. 6. 



HuiLLA. — A perennial herb, dioecious ; male flowers G-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. Xot 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. PI. iii. p. 453. 



1. 0. lancifolia Rich. Tent. Fl. Abyss, ii. p. 280, t. 95 (1851) ; 

 Ridl. in J ourn. 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., I.e. ; Durand t Schinz, I.e. ; Wright, I.e. 



Puxco Andongo. — An elegant herb, swimming ; with fibrous root. 

 Flowers very delicate, very fragile when dry, intensely yellow. 

 Plentiful with species of Ni/mjjJicea in ponds on the lofty rocks of 

 the prsesidium. Pedra Songue, on the lower ridge. In fl. middle of 

 February, in fr. April 1857. No. 6468. 



VOL. II. 1 



