92 XLVIII. MYRTACEJ. [ Hypocalymma,. 
Section III. Cardiomyrtus.— Ovary 3-celled, with 2 or more ovules in each cell, 
without prominent ridges, the style inserted in a central depression. Flowers pedua- 
culate. 
Ovules 2 in each cell. Leaves orbicular-cordate. 
Leaves with crisped or denticuiate recurved margins. Ovary 
ONY Conver: one E Ee nr e 
ves flat and entire. Ovary very prominent, free, except the 
i Lee EE e 10. E 
9. H. cordifolium. 
road base ide 
Ovules 6 to 12 in each cell. 
Branches pu nt. Leaves cordate, ovate . . . . . . 11. H. Phillipsi. 
Glabrous. Leaves elliptical, rounded or narrowed at the base . 12. H. Aypericifolium. 
Section I. EucALYMMA, Schau.—Ovary 2- or 3-celled, with 2 or 3 
ovules in each cell, the style continuous with the prominent raised angles or 
ridges of the ovary, without any central depression. Flowers in pairs, sessile 
or on a very short common peduncle. 
The want of the central depression of the ovary round the style is exceptional in the first 
three subtribes of Leptospermee. 1 
l. H. xan talum, F. Muell. Fragm. ii. 99. Erect or diffuse, not 
much branched, attaining 1 or 2 ft., the branches pubescent. Leaves from 
narrow-oblong to broadly oblong-cuneate or almost obovate, obtuse, minutely 
denticulate-ciliate, 3 to 4 in. long, narrowed at the base, but sessile or half 
tum, 'Turez. in Bull. Mosc. 1862, ii. 325. 
ora Murchison river and adjoining districts, Drummond, 6th Coll. n. 61, 
eld. 
eS ciliatum, Turez. in Bull. Mosc. 1862, mn. 325, is a slight variety with narrower - 
ves. 
cell, but 2 of the cells often very small, with semiabortive ovules.—H. cunea- : 
2. H. robustum, Endl. in Hueg. Enum. 50 (under Leptospermum). An 
elegant shrub, of 1 to 2 or 3 ft., with erect, rigid, virgate branches, quite 
glabrous. Leaves linear or linear-lanceolate, spreading, rigid, acute, 4 to 1 in 
long, with a thick broad midrib, but otherwise nearly flat. Flowers peach- 
common peduncle. Bracts small, lanceolate, concave. Calyx- Be 
1} to 2 lines diameter; lobe rbicular, scarious, about 1 line diameter. 
Petals twice as long as the calyx-lobes. Stamens 30 to 40, nearly as long a 
. the petals. Ovary flat-topped, with 2 prominent ridges continuous with the 
style, without any central depression, 2-celled, with 3 ovules in each cell.— 
indl. Bot. . 1843, t. 8; Schau. in Pl. Preiss. i. 110. CS 
7. Australia. Swan River, Hueyel, Drummond, Lei Coll. n. 141, Harvey, Oldfield, ` 
W.A 
Preiss, n. 342. 
and perhaps a variety. Branches rigid, virgate, glabrous, Leaves inst 
