94 XXIV. APONOGETONACE^E. [Aponogetou 



2. A. spathacea E. Mey. in Diege, Zwei Pflanz. Docum. 

 p. 165 (Beigab. ziir Flora 1843, Bd. ii.) (nomen nudum); Hook, 

 f. sub Bot. Mag. 6399 (1878); Engl., I.e., p. 272; Durand & 

 Schinz, I.e., p. 493. 



PuNGo AxDOXGO. — 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. 



XXV. POTAMOGETONACE^. 



1. POTAMOGETON L.; Benth. & Hook. f.Gen. PI. iii. p. 1014. 



1. P. fluitans Roth. Tent. Fl. Germ. i. p. 72 (1788). 



P. mdans L. v^v. fluitans Cham. Adnot. Fl. Berol. p. 4 (1815) ; 

 Durand & Schinz, Consp. Fl. Afr. v. p. 495. 



HriLLA. — 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. PI. p. 127 (1753); Kunth Enum. iii. 

 p. 137 (1841); Durand k Schinz, I.e. 



MossAMEDES. — Floating in deep fresh water, almost always growing 

 with Tripha angiiMifolia. Deep ponds near Aguadas. With no fl. or 

 fr. July 1859. ' No. 250. 



3. P. javanica Hassk. in Act. Soc. Scient. Indo-Neerland. i. 

 (Art. 8), p. 26 (1856) ; Durand & Schinz, I.e. 



P. huillensis Welw. ex Schinz in Bar. Schweiz. Bot. Ges. i. 

 p. 61 (1891). 



HuiLLA. — Streams near Catumba with species of Ottelia and 

 Lhnnophila, but very rarely flowering. In fl. Apr. 18G0. No. 248. 



2. RUPPIA L.; Benth. & Hook. f. Gen. PI. iii. p. 1014. 



1. R. maritima L. Sp. PI. p. 127 (1753); Kunth Enum. iii. 

 p. 123 ; Durand & Schinz, Consp. Fl. Afr. v. p. 497. 



PuNGC) Andongo. — Nutlets 3 to G, with unequal peduncles, ovate, 

 gibbous, polished. In a slowly flowing salt stream at Salinas do Dungo 

 (Soba Canhuro). In fr. and with a few flowers, middle of March 1857. 

 No. 245. 



3. ZOSTERA L. ; Benth. & Hook. f. Gen. PI. iii. p. 1017. 



1. Z. nana Roth. Enum. PI. Germ. i. p. 8 (1827); Kunth 

 Enum. iii. p. 117 (1841). 



Z. minor Nolte ex Kunth I.e. ; Durand & Schinz, Consp. Fl. 

 Afr. V. p. 499. 



Ambriz. — Plentiful near the mouth of the river Loje, near Ambriz, 

 Without fl. Nov. 1853. No. 246^ 



Loan DA. — Plentiful all along the shores of Angola ; never seen in 

 flower. Praia de Zamba Grande, 4 Dec. 1853. End of June 1858. 

 No. 246. 



