I. 



Mi/nojjhyllum.'] Xlv. halouage.e. 489 



The glaud^ observable in the axils of the submerged leaves of many ifyiophyUums are 

 particularly conspicuous in this species. 



6. M. amphibium, Labill PL Nov, Holl ii. 70. L 220. A small 

 plant, creeping in the raud, without capillary-Iobed leaves. Leaves opposite, 

 oblong or sometimes almost obovate, entire, mostly 3 to 4 lines long. Flowers 

 solitary in the upper axils. Males ; Calyx-lobes i to f line long. Petals 

 about 1 line long, narrower than iu the other species. Stamens 8. Female 

 flowers very small, the minute calyx-teeth scarcely perceptible. Styles often 

 rather long, plumose at the extremity- Fruit about ^ line long; carpels 

 ovoid, smooth or scarcely punctate. — Hook. f. Fl. Tasm. i. 132. 



Tasmania. Wet places about Recherche Bay, /. B. Hooker, 



7. IVt. pedunculatum, Tlook.f. in Hook, Lond, Journ, ri. 474, and Wl, 

 Tasm. i. 122, i, 2'6 B. Very closely allied to M. amphibiuni, and perhaps a 

 variety, differing in the leaves from narrow-linear to linear-oblong, rarely 3 

 lines long, the flowers rather smaller, the males sonietimes, but not always, 

 shortly pedunculate, the styles in the females very short, the carpels rather 

 smaller, covered with prominent tubercles. 



Victoria, Bogijy pastures, Australian Alps, F, Mueller, 



Tasmania. King's Island, ^. ^r(?/i?y* ; shallow parts and inundated water-banks, as- 

 cending to 4000 ft., J, B. Hooker, 

 ^^. Australia, Brmnmond, n. 20 J-. 

 Also in New Zealand. 



8. M. dicoccum, F. MnelL in Trans, TUL Inst, T/c/.iii. 41. A rather 

 slender species. Leaves all alternate, the submerged ones pinnatisect with ca- 

 pillary segments, the emero:ed floral ones hncar, entire, i tb | in. long, nar- 

 rowed at the base. Upper flowers niale or perhaps hermaphrodite, but not 

 seen perfect. Calyx-teeth inconspicuous. Petals about | line long. (Sta- 

 mens 4 ?) female flowers very small, with a 2.celled ovary and 2 short plu- 

 fiiose styles. Carpels 2, rather above \ line long, very smooth: 



W, Australia. Robinson river, F. MueUer. 



9. M, trachycarpum, I. Mnell Fragm. ii. 87. A slender species 

 ^ith the habit of M. dicoccuni. Leaves all alternate, the submerged ones 

 pinnatisect with capillary segments, the emerged floral ones linear, entire or 

 scarcely toothed, 2 to 3 lines long, narrowed at the base. Flowers small, soli- 

 !'^»y. the upper ones male, but hot seen very perfect. Calyx-teeth very sma 1. 

 I'etals under 1 line loug. Stamens apparently 8. Female flowers very small. 

 Calyx-teeth quite inconspicuous. Carpels 4 or rarely 3, about ^ Ime long, 

 conspicuously verrucosa 



. N. Australia. Gulf of C,irpent..ria, opposite Groote Island, J?. Brown; ponds near 

 Macadam Range, F, Mueller {Herb, R^ Br. and F, MuelL)- 



10. M. gracile, Bmth. A small slender almost filiform species nearly 

 f ied to J/, trachycarpum, and perhaps a variety. Leaves alternate, all, even 

 Je uppermost floral ones, deeply pinnatifid or pinnatisect with few (3, 5 or 

 7), narrow, rather short lobes. Flowers and fruit ol MArachjcarpnm. Stamens 

 ^ti the males 8, Carpels 4, small, tuberculate. 



Queensland, Bowman ; Moreton Bay, F, Mueller, 



11. M. filiforme, Benth. Stems filiform, simple or scarcely branched, 



