XLIV. ROSACEA. 
525 
2. *PRUNUS, Linn. 
(Latin name of the Plum-tree.) 
Calyx deciduous in fruit; lobes 5, imbricate. Petals 5. Stamens 15 to 60, 
perigynous, inserted in the mouth of the calyx-tube ; filaments free. Carpel 1 ; 
style terminal ; ovules 2, collateral, pendulous. Drupe with an indebiscent or 2- 
valved, 1 -seeded, smooth or rugged stone. Seed pendulous ; testa membranous 
or coriaceous ; albumen scanty or none. — Shrubs or trees. Leaves alternate, 
simple, quite entire or serrate, or crenate, or glandular-serrulate ; petiole often 
2-glandular. Flowers white or red, solitary, fascicled, corymbose, or racemed. 
Sect. I. Amys dalus. — Leaves conduplicate in bud. Flowers subsessile. Drupe usually 
pubescent ; stone bony, rugged. 
1. I». persica (Persian), Benth. and Hook. Gen. PI. i. 609. The common 
Peach. Leaves appearing after or with the flowers, oblong-lanceolate, serrate ; 
petiole glandular or not, shorter than the leaf is broad ; stipules fimbriate. 
Flowers sessile; calyx campanulate ; pericarp indebiscent. — Amygdalus persica, 
Linn.; Persica vulgaris, Miller. 
Hab.: This well-known fruit is often to be seen growing along the sides of railway lines in 
southern Queensland. 
The fungi which I have observed upon the foliage are Exoascus deformans, Berk., Cercospora 
circumscissa, Sacc., and Uromyces amygdali, Cooke. 
3. PYGEUM, Gtertn. 
(From the Greek puge ; supposed resemblance of fruit-stones.) 
Calyx-tube obconic, urceolate, or campanulate, deciduous ; limb 5 to 15- 
toothed, often unequally. Petals minute, 5 to 6 in the 5 to 6-toothed calyx, none 
in the 10 to 15-toothed, villous or tomentose, rarely glabrous, often undistin- 
guishable from the calyx-lobes. Stamens 10 to 50, in one or more series at the 
orifice of the calyx-tube ; filaments slender, incurved; anthers small. Carpel 1, 
basal in the calyx-tube, ovoid or subglobose ; style terminal, slender, exserted 
from the bud ; stigma capitate ; ovules 2, collateral, pendulous. Fruit a trans- 
versely oblong, obscurely didymous, rarely subglobose drupe ; pericarp thin, dry, 
or juicy. Cotyledons very thick, hemispheric ; radicle minute, superior. — 
Evergreen trees or shrubs. Leaves alternate, persistent, usually quite entire ; 
stipules minute, fugaceous, basal glands 2 or none. Flowers small, racemose, 
sometimes unisexual by want of ovary. — Hook. FI. Brit. Ind. ii. 318. 
Differs from Prunus chiefly in the minute villous petals (when present) and form of the fruit. 
The often conspicuous basal pair of glands on the leaf are very variable ; a few species have 
scattered glands, and one has bullate glands on the tip of the petiole, formed by a prolongation 
of the leaf-blade. — Hook. l.c. 
The genus contains about 20 species, all of tropical Asia, except one tropical African 
species, the Queensland species, and another in New Guinea. 
1. P. Turnerianum (after F. Turner), Bail. Bot. Bull. viii. “ Joon-da,” 
Bloomfield River, Roth; “ Abill ” (tree and fruit), Barron River, Cowley. A 
small tree with small flanges at base of the trunk ; the leafy part of the branches 
densely clothed with ferruginous hairs. Leaves, upper surface bright glossy 
green, the under surface pale, entire, lanceolate or oblong-lanceolate, 4 to 6.)in. 
long, to 2Jin. broad, primary veins rather distant, very oblique, and looping 
near the margin, prominent on the under side ; upper surface rather glossy, with 
short appressed hairs along the midrib, and sometimes on other parts of the 
surface ; the under side more or less hairy, with rather rigid appressed hair of a 
somewhat yellowish tinge, tapering to a slender petiole of 3 to 5 lines ; basal 
glands irregular as to position, and number 1, 2, or 3, sometimes a marginal one 
on each side of the midrib below the lowest pair of lateral nerves, sometimes 
