44 NAIADACEH (Bennett). [ Aponogeton. 
4. A. Holubii (Oliver in Hook. Ic. Pl. t. 1470); leaves oblong- 
elliptical, 43-6 in. x 2-3 in., apex shortly semiobtuse, base rounded, 
cordate, with lengated petioles, 7 pits veining obscure; 
as get thick, tapering upwards ; spike bifid, 2131 in. long, dense- 
flowered, hermaphrodite ; bracts 2, oblong or ovate-oblong, obtuse ; 
the ovary. Durand and Schinz, Conspect. Fl. Afr. v. 492 
SoutH Arrica: without locality, Mrs. O. Bowker! Herb. Brit. Mus. 
Also in Tropical Bechuanaland. 
5. A. kraussianum (Hochst. ex Krauss in vor 1845, 343) ; leaves 
longly-petioled, floating, oblong elliptical, 7-9-nerved ; medium nerve 
3-cleft, acute, base subcordate ; peduncles tote tapering upwards; 
apie bifid ; arms short, *-12 in., dense-flowered; flowers white ; 
stamens generally 6; anthers yellowish ; ovaries 3-5 (rarely 6) 
follicles globose, with a thickened short beak. Krauss, Beitr. Fl 
Cap. und Natal. 172. A. leptostachyum, E. Meyer ex vie 
in Trans. Linn. Soc. xxix. 158 (name only); Engl. ger viii. 270. 
A, desertorum, Zeyher herb. ! ex Steud. Nomen. ed. 2, 
Coast ReEeion: Uitenhage Div. ; stagnant pools at the foot of wise 
ei yi Krauss, 1604! and without precise locality, Zeyher, 912! Bolus, 
CenTRAL Region: Somerset Div., Bowker! Richmond Div.; between 
Richmond and Brak Vallei River, 3000—4000 ft., Drége 
6. A. natalense (Oliver in Hook. Ic. Pl. t. 1471a) ; leaves elon- 
gated, linear-oval, acute; lamina often narrow; spike bifid, many- — 
flowered ; male flowers 3—2 , bracteate, linear-oblong, obtuse, unequal, 
or subequal ; ; stamens 6-7; ; an nthers broadly subr oe igh follicles — 
often 3. Durand and Schinz, Conspect. Fl. Afr. v 
Eastern Region: Natal; York, McKen, 10! between Kar Kloof and 
Umgeni River, Rehmann, 7429 ! Liddesdale, Wood, 4250! and without 
precise locality, Sutherland! 
7. A. Rehmanni (Oliver in Hooks te Pl. t. 1471b) ; os oblong: 
oval, subacute, 1-12 in. long, n. broad, subapiculat spike 
bifid, lon ng, lense flow end; ens dieniote ; heii scott 
ee cabaete follicles 8-9, oblong. Durand and Schinz, Conspect. 
Fl. Afr. v 
Katanarit Reeion: Transvaal; Bosch Veld, between Kleinsmit and 
Kameel Poort, Rehmann, 4835 ! 
8. A. spathaceum (Hook. f. in Bot. Mag. sub t. pas leaves : 
very narrow, or elongate-subulate, obtuse, or dilated a linear 
lanceolate lamina; spike bifid; arms short, oh ao fl 
bracts 2, obovate-oblong, obtuse, 3-nerved, pale lilac ; stones 6-8; 
follicles 3-8. E. Meyer in Zwei Pflanzengeogr. Documente 137, as 
only ; Engl. Jahrb. viii. 272 ; Durand and Schinz, Conspect. 
Afr. v. 493. 
