Si 
48 NAIADACEH (Bennett). —— [ Potamogeton. 
apex, less so on the margins; stipules small, subobtuse, lower soon 
decaying ; peduncles between the forks of the stem, rather stout, and — 
tapering towards the apex; spike large, lax-flowered ; fruit large, 
acuminate and compressed, obliquely-ovoid; beak very long an 
7 Durand and Schinz, Conspect. Fl. Afr. v. 493. 
HARI ReEGion: Griqualand West; Modder River, Barber, 4! Vaal — 
River, Weleus 0! 
EASTERN pre Natal ; or Wood, 154! Little Umhlaaga, Sanderson, 
2018! Umgeni Valley, Kra | 
Widely dispersed in various ae of the earth. oy 
8. P. lucens — Sp. Pl. ed. 1, 126) var. fluitans Sis and 
Germ. Fl. Env. Paris, ed. 1, 571) ; stem stout, branched ; leaves all — 
pihuiskgea 1), ‘the over ones sometimes 10 in. long, lan pete or 
lanceolate-linear, acuminate, the lowest cess the pedicels gradually — 
ngthen until t come 1-11i ; upper leaves lanceolate, 
the aaa slightly keeled. ngifolium, Gay in Poir. Eneyc. — 
Suppl. iv. 535. P. macroph itt Wolfg. in jane et Schultes, 
Syst. Mond, iii. 358. a 
Coast REGION: Uitenhage Div., Ecklon and Zeyher, 640! Zey 
Katanari Reeion: Transvaal; Schoon Spruit, near a Me Nelson, e 
t 
Eastern Recion: Natal; Mid Illovo, Wood, 1889! Umbhlongwe, Wood, 
3015! a “iii Mathibis Kom, 500 ft. , MacOwan and Bolus, Herb. Norms 
Aust. Afr., 1 q 
FE. ee is ae distributed in Europe, Asia, Africa, and America, rare in j 
Austra! a 
The \ eo fluitans also et ents in Tropical Africa and Europe, and rarely is 
. America, and Australia. a 
ia, F 
The Bo uth African s iiatas probably belong to a new sub-species of P. lucens ab a 
e givem | 
Linn., but for the present it is best to retain them under the name above 
to wile’ vey they bear the greatest affinity of any named for 
riesii (Ruprecht, Beitr. Pfl. Russland. iv. ws 
slender, ee — branched ; leaves all similar, lin 
towards the base, in , 5- very rarely 3- OF 
raises porta with faseicles of smaller leaves in the aXl$i_ 
stipules acute or acuminate, scarious ; peduncles slightly thickened 
upwards ; spikes few-flowered, generally interrupted ; fruit s™ 
usillus. P. : 
Mert. et Koch). P. Oederi, Meyer, Fl. Hann. Excurs. 536. 
Coast REGION: Cope Div. ; Zout River, Kochmanns Kloof, Bergius! K'0 
Piiauatorn Div.; Buffalo. egett “near King Williamstown, «Leigh 
Queenstown Div. ; Shiloh, 3500 ft., 1 ‘ 
neonate ReGion: Natal; cata penis Umzinto and fafa, ers 
3055! Umlazi River, Drége, 4458! ; 
