1120 GENTIANE (Hill and Prain). { Villarsia. 
petioled or sessile, base cuneate, much smaller; flowers in racemi- 
form or corymbose cymes at the ends of the branches ; peduncles 
4-3 in. long; calyx 4 lin. long, divided almost to the base ; lobes 
elliptic, acute ; corolla yellow; tube campanulate, rather shorter 
than the calyx ; lobes oblong, retuse, apiculate at the base of the 
sinus, with crenate-fimbriate margins, hirsute at the base within, 
6 lin. long, 3 lin. wide; hypogynous glands yellow ; capsule sub- 
globose ; seeds 2, subglobose, obtusely carinate, faintly muricate. 
Griseb. Gen. et Sp. Gent. 337 and in DC. Prodr. ix. 136; E. Meyer, 
Comm. 186. Menyanthes ovata, Linn. f. Suppl. 133. M. capensis, 
Thunb. Prodr. 34. Renealmia capensis, Houtt. Handleid. viii. 335, 
t. 47, fig. 1. 
SoutH Arrica: without locality, Grey ! 
Coast Recion : Tulbagh Div. ; marshes near New Kloof, 2000-3000 ft., Drége ! 
Worcester Div. ; Bains Kloof, 2700 ft., Schlechter, 9174! Paarl Div. ; Klein 
Drakenstein Mountains, 500 ft., Drége! Cape Div. ; Table Mountain, Forster ! 
Burchell, 562! Ecklon, 825! Sieber! Zeyher! Harvey, 213! 238! Milne, 174! 
MacWillivray, 608! Prior! near Wynberg Reservoir, Wolley Dod, 167! marsh 
south of Vlagge Berg, Wolley Dod, 166! Muizenberg, Prior! Stellenbosch Div. 3 
Hottentots Holland, Prior! Caledon Div. ; New Kloof, Houw Hvek Mountains, 
Burchell, 8110! Swellendam Diy. ; by the Zondereinde River, near Appels Kraal, 
Zeyher, 3435! Uniondale Div. ; Long Kloof, marshes at Sevenfontein River, 
Burchell, 4887! aud by Wagenbooms Stream, Bolus, 2404! Uitenhage Div. ; 
Zuurberg Range, 2500 ft., Dréye ! 
IX. LIMNANTHEMOM, 8. M. Gmel. 
Calyx deeply 5-6-lobed ; tube very short, campanulate. Corolla 
5-6-lobed; tube short; lobes spreading, induplicate-valvate. 
Stamens 5-6, inserted at or below corolla-throat; filaments short ; 
anthers versatile. Ovary surrounded by 5-6 minute hypogynous 
glands, l-celled; placentas parietal; ovules usually numerous ; 
style short or long; stigma 2-lobed. Capsule globose, ovoid or 
oblong, indehiscent or irregularly rupturing. Seeds few or 
numerous; testa crustaceous, smooth or tuberculate, sometimes 
subcarinate. 
Herbs, aquatic ; stems erect or stolon-like, with alternate or subopposite leaves ; 
leaves orbicular, elliptic or ovate, usually deeply notched at the base, margin 
entire, crenate or dentate ; flowers white or yellow, solitary or in pairs or fascicles 
at the nodes, 
Distrip. Species about 20, in all tropical and temperate regions. 
1, L. thunbergianum (Griseb. Gen. et Sp. Gent. 345); tufted, 
usually submerged ; stems (false petioles) very variable, 2 in.-? ft. 
— long, 3-2 lin. thick ; leaves floating, orbicular with deep acute 
basal sinus, coriaceous, 1-5 in. wide ; flowers 5-merous, in fascicles 
of 10-25, close to or from }-1 in. below the blade ; pedicels stout, 
_ long; calyx 4 lin. long, divided almost to the base ; lobes: 
anceolate, obtuse or acute ; corolla white or yellow; : : 
