490 



XLV. HALOHAGEJE. [Myriophyllum. 



about 2 in. or rarely 3 in. long. Leaves all alternate, linear-subulate, entire, 

 1 to 2 lines long. Flowers minute, mostly 2 or 3 together, the upper ones male. 

 Petals about \ line long. Stamens 8, with oblong anthers and short fila- 

 ments as in all the preceding species. Females very minute. Styles scarcely 

 any. Carpels 4, about \ line long, muricate. 



W- Australia. Gulf of Carpentaria, mainland opposite Groote Island, R. Brown illerh. 

 i2. Br). With some resemblance to M. Drummondii, this species is much more slender, 

 and has the male flowers qnite different. 



12. M. integrifolium, Hook,f, FL Tasni, i. 123, ^.23 A. A minute, 

 slender, simple or branched plant, rarely exceeding 1 in. in height. Leaves 

 all alternate or here and there irregularly opposite, linear-subulate, entire, 1 

 to 2 lines long. Flowers minute, sessile in the upper axils, the uppermost 

 2 usually males. Calyx-teeth inconspicuous. Petals 4, scarcely \ line long. 

 Stamens 4, often persistent after the petal^ have fallen, and diflering from all 

 others of the genus, except M, Drummondii, in their filiform filaments, much 

 longer than the small ovoid anthers. Females without calyx-teeth or petals. 

 Styles scarcely prominent, with papillose stigmas. Carpels 4, when ripe 4 to 

 nearly \ line long, ovoid, separated by deep furrows, smooth or minutely papu- 

 lose.— P^/o^zas/es integrifolia. Hook. f. in Hook. Lond. Journ. vi. 475. 



Victoria. AYet places on the Murray, Dareblu Creek, Emu flats, etc., F. Mueller, 

 Tasmania. Wet places, lagoons, etc., frequeut, J. D. Hooker. 

 S. Australia. !Murray river. Plenty Creek, etc, F. Mueller. 

 W. Australia^ D/ummond, n. 686. 



13. M, Drammondii, Benth. A little plant of aLout 1 in. in lieiglit, 

 closely resembling M. integrifoUmn. Leaves alternate, naiTOW-linear, entire or 

 here and there with a few linear lobes. Flowers entirely of M, integrifoliim 



the uppermost 2 males, with 4 stamens, long filaments, and small anthers. 

 Carpels 4, of the same size as in that species, but prominently tuberculnte 

 or m\mQ^{Q,—Pelona8tes tuberculata. Hook. f. in Hook. Lond. Journ. vi. 4 1^. 



■W. Australia, Drummond, n. 18 j Geographe Bay, Oldjield. Perhaps a variety only 

 of 3/, integrifolium, 



B. Anomalous Genera. 



5. GUNNER A, Linn. 



(Milligaula, IIook,f.) 



Flowers mostly unisexual. Male fl. : Calyx of 2 or 3 minute teeth, often 

 scarcely perceptible, without any tube. Petals none in the Australian specie . 

 Stamens 2, with very short filaments. Female fl. : Calyx-tube terete 01 a 

 qular; lobes 2 or 3, very small. Petals none. Ovary 1 -celled, with i p 

 dulous ovule; styles 2, linear, stigmatic from the base or rarely 4 styles, m 

 or less counate in pairs. Finiit a small nut-like drupe, the seedottena 

 riug to the pericarp. Embryo verj^ minute.— Stemless herbs, with ^ \^^^^^^ 

 creeping rhizome. Leaves radical, usually broad, in some S. American s^^^ ^^ 

 attaining an immense size. Flowers small, in clusters or in exotic spe 

 spikes or racemes, crowded along the rhachis of a radical scape. 



The genus is spread over the cooler regions of the sonlhern heuiispliere, ®^^^"^l"^i7b^ 

 ward aloug the Andes to the Gulf of Mexico. The only Australian species is enue > 

 is nearly dlied to some others from New Zealand aud Antarctic America. 



