ANTE ThE ons 
JMapania. CXLIII. CYPERACER. 341 
more in harmony with the known structure of the Cyperaceæ such as Scirpus and 
Hypolytrum, The spikelet as a whole is very much like that of the larger species of 
Scirpus, the two outer navicular scales within the glumes are evidently homologous 
to those of Hypolytrum, and the four inner ones to the scale-like bristles of Scirpus 
littoralis. Tn some extra-Australian species there appears to be an increase in the 
number of scales and perhaps of stamens, but so also is there an increase in the 
bri ; : 
number of bristles in some species of Scirpus, Many of the larger species of 
Mapania require much farther examination and it is very rarely that herbarium 
ecimens are available for the purpose. 
> 1. M, hypolytroides, F. Muell.—Stems stout, 3-angled. Leaves 
4 ft. long, 1 to 2 in. broad, with scabrous edges. Panicle dense, very 
compound, 6 to 10 in. diameter. ne or two of the lower involucral 
bracts 1 to 2 ft. long and 1 to 1 in. broad, tapering into long points. 
Spikelets very numerous, shortly pedicellate, said to be white when 
fresh, light brown when dry, ovoid, 3 to 4 lines long, about 2 lines 
diameter. Glumes closely imbricate, ovate or oblong, obtuse, thin, with 
ig Queensland, Rockingham Bay, Dallachy. The nearest approach to this species 
e M. sumatrana (Thoracostachyum, Kurz in Journ. Asiat. Soc. Beng. xxxviii. 75 
Lepironia sumatrana, Mig. Tl. Fl. Arcbip. Ind, 62. t, 24), which however has a much 
"E slender stem, narrow leaves, a small corymbose panicle, and gl f dian) 
11. SCIRPODENDRON, Kurz. 
The genus is limi: ig s 5 i 
p ted to a single species dispersed over the Malayan Archipelago 
mr L ‘rently also in Ceylon ent SA Pesice Talat Tt is closely allied to Mapania 
vironia, differing from both in the nut, the largest known in the order. 
l. S. costatum, Kurz in Journ. Asiat. Soc. Beng. xxxviii. 
— from a thick woody rhizome stout, 3-angled, 1 to 2 ft. high. 
hargin 6 to 9 ft. long, 1 in. broad or more, 3-nerved, with scabrous 
thyroid Clusters of spikelets sessile or nearly so, in à dense oblong- 
panicle, the lower leafy involucral bracts 1 to 2 ft. long. 
