172 XLVIII. MYRTACEJ. [Phymatocarpus, 
This genus is limited to the single Australian species, only differing from Beaufortia 
and Regelia in the anthers and ovules. 
1. P. porphyrocephalus, F. Muell. Fragm. iii. 121. A shrub of 2 to 
3 ft., usually glabrous except the inflorescence. Leaves erect and imbricate 
or spreading, orbicular or broadly ovate, obtuse, flat or concave, thick, 
1-nerved, 1 to 2 lines long. Flowers small (varying in colour purple or 
white on the same bush, according to Oldfield) in dense globular heads, the 
rhachis and calyxes woolly. Calyx-tube 3 line long; lobes ovate-triangular, 
erect, shorter than the tube. Petals nearly 1 line diameter, ciliolate. Stamens 
2 to 3 lines long, shortly united in clusters of 11 to 15, and all connected at 
the base into a complete ring. Ovules usually 3 in each cell. Fruiting- 
calyx when old depressed-globular, 2 to 23 lines diameter, coarsely w 
outside, the orifice very open, crowned by the short thick lobes. Seeds few 
and erect as in Melaleuca. 
WV. Australia. Sand plains, Murchison river, O/dfie/d, and apparently the same 
species, in fruit only, Drummond, a. 71. 
27. CALOTHAMNUS, Labill. 
(Billottia, Colla.) ` . 
Calyx-tube campanulate, adnate to the ovary at the base, the free part 
erect or dilated; lobes 4 or 5, persistent or deciduous. Petals 4 or 5, spread- 
— : 
ee, 
I 
r 
-nerved or nerveless. Flowers showy, usually red, in lateral clusters or 
rh 
either protruding aud free from the time of flowering or remaining immer". 
till the maturity of the seed. Bracts none. Flowers often polygamous - 
in the allied genera. y 
The genus is confined to Western Australia. 
A. Flowers 4-merous. Two upper staminal bundles broad and flat, two lower ii 
and without anthers (except in C. torulosa). — Calyz-lobes as long as the tube. 
Calyx entirely immersed in the thick swollen rhachis. 
Leaves flat, 4 to 6 in. long. Rhachis of the spike densely 
clothed with long hairs . . . . 1. C. pachystachgut 
Leaves terete, 6 to 12 in. long. Rhachis ' Aa wr 
but shortly pubescent —. ae uet i = — — 2. C. longissimus. 
