Haloragis.] 
XLVIII. HALORAGE/E. 
55 ? 
branches alternate. Flowers almost sessile, forming short interrupted terminal 
racemes, and similar to those of the smaller forms of H. tetragyna, except that 
the calyx-tube and fruit are smooth and shining, with 4 or 8 prominent nerves, 
not tuberculate. — Hook. f. FI. Tasm. i. 120. 
Hab.: Southern Queensland. 
Also in New Zealand. 
There are two forms of this species : 1. serpyllifolia. Leaves mostly under 3 lines long and 
rather narrow . — Goniocarpus serpyllifolius and G. vernicosus. Hook. f. in Hook. Ic. PI. t. 290 and 
311, H. serpyllifolia and H. vernicosa, Walp. Rep. ii. 90 ; — and 2. Montana. Leaves broader, 
often cordate, 3 to 5 lines long. — H. Montana , Hook. f. in Hook. Lond. Journ. vi. 475, united 
with H. depressa in FI. Tasm. i. 120. — Benth. 
2. MYRIOPHYLLUM, Linn. 
(From my Has, a myriad, and phyllon, a leaf.) 
Flowers mostly unisexual. Male flower : Calyx-tube very short or scarcely 
any, lobes short, petal-like or scarcely any. Petals 4, concave, imbricate or half 
induplicate. Stamens 4, 6 or 8. Styles minute and rudimentary, without any 
ovules. Female flower : Calyx-tube ovoid, lobes minute or none. Petals usually 
none. Ovary 2 or 4-celled, with one pendulous ovule in each cell ; styles as 
many as ovules, usually short and stigmatic from the base, often plumose. Fruit 
small, usually furrowed between the 2 or 4 carpels, which at length separate into 
as many small 1 -seeded nuts. Aquatic herbs, the lower leaves when submerged 
often pinnately divided into capillary lobes ; those of the flowering extremities 
usually less divided or entire. Flowers very small, in the axils of the exserted 
flowering leaves or rarely also or entirely in the submerged axils, the upper ones 
usually males, the lower ones females, sometimes dioecious, but perhaps not 
constantly so in any species. 
The genus is found in fresh waters nearly in every part of the globe. 
Leaves all in whorls of 3 to 8, the submerged ones pinnatisect with capillary 
segments, the emerged floral ones entire toothed or shortly lobed. 
Leaves usually more than 4 in the whorl, the emerged ones narrow- 
linear. Calyx-lobes conspicuous 1. M. varice. folium. 
Leaves usually 4, the emerged ones oblong or broadly lanceolate, pin- 
natifid, sessile. Calyx-lobes minute. Plant small or slender ... 2. M. verrucosum. 
Leaves usually 3, the emerged ones linear-lanceolate, above Jin. long, 
serrulate, narrowed into a petiole 3. M. latifolium. 
Leaves all alternate, pinnatisect with fine segments. Stamens 8. Carpels 4 4. 3/. gracile. 
1. 1VE. variaefolium (various-formed leaves), Hook. f. in Hook. Ic. PI. t. 
289, and FI. Tasm. i. 122 ; Bentli. FI. Austr. ii. 487. Usually a rather large species. 
Leaves in whorls of from 4 to 8, usually 5 or 6, the lower submerged ones 
divided into capillary lobes, the emerged floral ones narrow-linear, all entire or 
the lower ones toothed, J to above ^in. long. Male flowers : Calyx-lobes con- 
spicuous and sometimes above J line long. Petals 1J to 1|- lines. Stamens 8. 
Female flowers small without apparent calyx-teeth or petals. Carpels 4, small, 
tuberculate or almost echinate, or rarely quite smooth. 
Hab.: Brisbane and other southern localities. 
Also in New Zealand. 
2 . m. verrucosum (warted fruit), Lindl. in Mitch. 'Prop. Austr. 384 ; 
Benth. FI. Austr. ii. 488. Usually much smaller and more slender than the last 
species. Leaves mostly in whorls of 4, the lower submerged ones divided 
into capillary lobes, the emerged floral ones sessile, oblong or lanceolate, all 
pinnatifid with short obtuse lobes, more or less glaucous, mostly about 2 lines 
long. Calyx-lobes very small, but perceptible in both sexes, very deciduous in 
