56 XLVIII. MYRTACEA. 
ing to the summit of the cavity. Embryo where known very thick, with a 
slender neck inflected and divided at the end into 2 small cotyledons. 
e three genera here included have the habit and embryo of Beckea with 
the 1-celled ovary of Euchamelauciee. 
9. HOMALOCALYX, F. Muell. 
Calyx-tube cylindrical or turbinate, the upper free part short and broad; 
ci s. Petals 
lobes 5, petal-like, entire, deciduou 5, entire, deciduous. Sta- 
fi 
tate stigma. Fruit . . .—Heath-like glabrous shrubs. Leaves scattered (not 
opposite), usually crowded, small, entire. Flowers nearly sessile along the 
branches, solitary in the axils of the leaves. Bracteoles broad, usually 
persistent. ? 
A small genus, limited to Australia, allied to Lhotzkya in its petals and stamens, and in 
Some measure to Thryptomene in the ovary, differing from both in the deciduous calyx- 
lobes, e ripe fruit is unknown, but in the farthest advanced state that I have seen there 
is no tendency to the hardening of the endocarp as in Z/ryptomene. B 
Leaves linear, mucronate.. Calyx-tube cylindrical, lobes and petals 
ws e 9 ladb . . à v. ee v S . 1. H. ericeus. 
Leaves oblong-triquetrous, obtuse. Calyx-tube broadly turbinate, 
lobes and petals broad, obtuse. Stamens 20 to 30 . foo o0. & H. polyandrus. 
excentrical placenta, which does not appear to be continued beyond the - 
ovules. Young fruit 1-seeded, enclosed in the enlarged truncate calyx-tube. ` 
Thryptomene homalocalyz, P. Muel Fragm. iv. 63. - 
N. Australia. Islands of the Gulf of Carpentaria, R. Brown; elevated table-land ; 
between the Roper and Limmen Bight rivers, F. Mueller. : 
and broad 
placenta.—Thryptomene polyandra, F. Muell. Fragm. iv. 77. 
