156 QUEENSLAND AGRICULTURAL JOURNAL. [1 Ava., 1898. 
Order APOCYNACEZ. 
LYONSTA, R. Br. 
L, viridiflora (n. sp.) <A tall glabrous climber. Leaves broadly-ovate, apiculate, 
4 to 5in. long, dark glossy green. Petioles 6 to 9 lines long, slender. Cymes on 
axillary peduncles of about 14 in., bearing 3 forked branches. Flowers green, 
pedicellate. Calyx-lobes orbicular, about a line in diameter, ring at base a mere 
line. Corolla-tube gibbous, about as long as the calyx, glabrous inside; lobes 
3 lines long, ?-line broad. Staminal cone narrow, filaments twisted, hairy. 
Hypogynous scales yellow, glabrous, slightly lobed at the top. Ovary glabrous. 
Follicles about 5 in. long. (None obtained, only seen out of reach up the trees.) 
Hab.: Climbing over shrubs and up trees. Chads Bay, New Guinea, May, 1898. 
Order ASCLEPIADEZ., 
HOYA, R. Br. 
H. Lamingtoniz (n.sp.) (After Lady Lamington.) A tall, dense, delicate 
succulent twiner. Leaves lanceolate-acuminate, 2 to 3 in. long, scarcely 
exceeding 1 in. wide, of a rather pale-green, the gland on the face indicating 
the position of the attachment of the petiole somewhat raised; lateral nerves 
few, very oblique, triplinerved at the base, glabrous on both sides, the underside 
more or less speckled with purple. Petiole 3 or 4 lines long. Peduncles 1% 
in. long, bearing an umbel of about 12 deep maroon-coloured flowers. Pedicels 
slender, about lin. long. Calyx-segments ?-line, narrow. Corolla expanding to 
a diameter of 8 lines; the lobes blunt, margins slightly recurved, bearing short 
almost white hairs, otherwise lobes glabrous on both sides. Corona-segments 
under 2 lines long, glossy, cymbiform, coriaceous, viewed from the underside 
resembling a small grain of wheat. 
Hab. : Twining over the shrubs and trees near the water’s edge of small bay, foot of Mount: 
Trafalgar, New Guinea. One of the most beautiful of the genus, and should be introduced into 
garden culture. ’ 
H. dimorpha (n. sp.) A stout strong twiner, the extremities often slender 
with much smaller leaves. Leaves thick-coriaceous, oblong-acuminate, slightly 
cordate at the base ; those on the thick portion of the stem exceeding 5 in. in 
length and 2 in. in breadth; those on the slender ends often cordate and under 
2 in. long, glabrous, underside pale, the gland on the face indicating the 
attachment of the petiole, beneath often a broad ciliate disk at times more or 
less umbonate. Petiole stout, usually less than 3-in. long. Peduncles slender, 
2 to 3 in. long, bearing an umbel of many—27 or more—small flowers. 
Pedicels about 1 in. long, purplish; flower-buds 5-angled, about 3 lines in 
diameter. Calyx-segments triangular, }-lie long. Corolla nearly white, 
5-lobed, expanding to about 5 lines diameter, silky-hairy on the back, more 
prominently so on the margins, and also forming a ring around the orifice of: 
the corolla-tube, nearly glabrous on the face. Corona white glossy, segments 
about 1 line long, concave above, the sides produced into thick wing-like ribs 
beneath. 
Hab. : Twining over shrubs and trees growing on the margin of the small bays at the foot of 
Mount Trafalgar, New Guinea. : 
H. coronaria, var. papuana (n.var.) A robusttall twiner. Leaves oblong-ovate, 
thick-coriaceous, 4: or 5 in. long, slightly peltate, the apex with a rather long 
point, 2 to 2% in. broad at the centre, upperside glossy, the underside 
clothed with a close, short, stellate tomentum of a dirty-white colour; lateral 
nerves distant, nearly horizontal, only visible on the upperside, the gland 
indicating the attachment of the petiole, beneath scarcely visible. Petiole about 
1 in. long. Flowers in almost sessile short racemes; the peduncle thick, 
stellate-tomentose, about 5 or 6 flowers open at a time. Pedicels tomentose, 
about 3-in. long. Hlower-bud a thick 5-rayed star, the rays recurved, 
