2 PONTEDERIACEZ (Brown). { Heteranthera. 
i. 2. kotschyana (Fenzl ex Solms in Schweinf. Beitr. Fl. Aithiop. 
long, 3-14 in. broad, cordate, obtusely pointed, glabrous; flowering- 
stems 1-4 i in. long, bearing one leaf, whose sheath embraces a mem- 
beth, ‘dicted utibtise, uit. stamens . rene exserted ; ‘ovary 
oblong, trigonous ; style filiform, as long as the stamens, with a simple 
slightly thickened stigma ; capsule oblong, trigonous. Solms in DC. 
. Phanerog. iv. 522. Monochoria vaginalis, Kirk in Journ. 
Linn. Soe. viii. 147. 
KatauHAkI REGion: Transvaal; Bosch Veld, Rehmann, 5148! 5149! 
Also in Eastern Tropical Africa. 
Orper CXXXIX. XYRIDEZ. 
(By N. E. Brown.) 
hermaphrodite. Calyx inferior, irregular; sepals 3, 
the two lateral pia boat-shaped, keeled, clamdpatie 
the tsitl interior, membranous, convolute, forming a closed, obtuse 
ithe hood, or obtusely dea Say circumscissile at the base 
and split open on one side, closely enveloping the corolla when in 
bud, and pushed off as the corolla grows out and expands, rarely 
absent. Corolla regular, petalvid, with a slender tube usually split 
into claw-like segments in the lower part by the growth of the ovary, 
ree spreading, c uneate-obovate lobes, mareescent. Stamens 3, 
affixed at the mouth of the tube opposite the corolla-lobes ; filaments 
short, flattened; anthers basifixed, oblong, 2-celled, cells parallel or 
] ted 
slightly divergent a t the base, contiguous, or more or se 
by a broad connective, extrorse, opening by res ie slits. 
Staminodia 3 or 0, alternating with the séialla-totis t the mouth 
of the tube, simple or bifid at the apex and hades or aired or 
divid into two entire or bifid, glabrous or hairy arms, or more or 
less deeply divided into brush-like tufts of hairs. Ovary superior, 
l-celled or imperfectly 3-celled ; placentas 3, parietal or shortly 
united at the centre, or free and erect from the base; ovules 
indefinite, at ites orthotropous ; style filiform, sometimes with 
tubercles or proc at or below the middle, trifid or 3-armed at 
e is or soktia ire; stigmas dilated or subeapitate, “hel simple. 
le dividing into 3 valves between the placentas. Seeds minute, 
ovoid, a hilum ed testa thin, usually idgeds ‘iain 
-conical, 
copious, transparent ; embryo minute, ly d 
seated at the apex of the re ce under the terminal apiculus, 
| 
| 
