94 XXIV. APONOGETONACES. [ Aponogeton. 
2. A. spathacea E. Mey. in Drége, Zwei Pflanz. Docum. 
p. 165 (Beigab. zur Flora 1843, Bd. ii.) (nomen nudum); Hook, 
f. sub Bot. Mag. 6399 (1878); Engl., 4c, p. 272; Durand & 
Schinz, J.c., p. 493. 
Pungo ANDoNGO.—A marsh herb with edible tuber, suberect or 
spreading herbaceous-green leaves, and deep blue or violet-blue flowers, 
Scapes at first erect, becoming somewhat decumbent in fruit. Plentiful 
in marshy places between Condo and Quisonde, in damp meadows, 
flooded in summer, between Pungo Andongo and Quisonde, and in 
boggy meadows between Quibinde and Quitage. In fl. and immature: 
fr. March 1857. No. 3012. 
XXKV. POTAMOGETONACEA. 
1. POTAMOGETON L.; Benth. & Hook. f.Gen. PI. iii. p, 1014. 
1. P. fluitans Roth. Tent. Fl. Germ. i. p. 72 (1788). 
P. natans L. var. fluitans Cham. Adnot. Fl. Berol. p. 4 (1815) ; 
Durand & Schinz, Consp. Fl. Afr. v. p. 495. 
Hvitta.—Somewhat rare in pools of streams; not seen in flower. 
Mumpulla, Oct. 1859. Vainly sought in the same place June 1860. 
No. 249. 
2. P. pectinata L. Sp. Pl. p. 127 (1753); Kunth Enum. iii. 
p. 1387 (1841); Durand & Schinz, de. 
MossaMEDES.—Floating in deep fresh water, almost always growing 
with Typha angustifolia. Deep ponds near Aguadas. With no fl. or 
fr. July 1859. No. 250. 
3. P. javanica Hassk. in Act. Soc. Scient. Indo-Neérland. i. 
(Art. 8), p. 26 (1856); Durand & Schinz, Zc. 
P. hwillensis Welw. ex Schinz in Ber. Schweiz. Bot. Ges, i. 
p. 61 (1891). 
Hvirta.—Sireams near Catumba with species of Ottelia and 
Limnophila, but very rarely flowering. In fl. Apr. 1860. No. 248. 
2. RUPPIA L.; Benth. & Hook. f. Gen. Pl. iii. p. 1014. 
1. R. maritima L. Sp. Pl. p. 127 (1753); Kunth Enum, iii. 
p. 123; Durand & Schinz, Consp. Fl. Afr. v. p. 497. 
Punco ANDONGO.—Nutlets 3 to 6, with unequal peduncles, ovate, 
gibbous, polished. In a slowly flowing salt stream at Salinas do Dungo 
(Soba Canhéro). In fr. and with a few flowers, middle of March 1857. 
No. 245. 
3. ZOSTERA L.; Benth. & Hook. f. Gen. Pl. iii. p. 1017. 
1. Z. nana Roth. Enum. Pl. Germ. i. p. 8 (1827); Kunth 
Enum, iii. p. 117 (1841). 
Z. minor Nolte ex Kunth J.c.; Durand & Schinz, Consp, Fl. 
Afr. v. p, 499. 
AmpBriz.—Plentiful near the mouth of the river Loje, near Ambriz. 
Without fl. Nov. 1853. No. 246°. 
Loanpa.—Plentiful all along the shores of Angola ; never seen in 
age Praia de Zamba Grande, 4 Dec. 1853. End of June 1858. 
No. 246. 
