SCREW PINES 625 
etc.), but because the spiny leaves somewhat resemble those of the 
Pine-Apple (Ananassa), and because of their large pine-apple-like 
fruits. The prefix Screw has reference to the spiral arrangement 
of the leaves on the stem. <A very singular effect is caused by their 
production of adventitious roots from various parts of the trunk, which 
seek the earth and become stout and stem-like; the trunk thus appears 
to have several props to keep it from falling. Pandanus odoratissimus, 
whose male flowers yield a fragrance which Dr. Roxburgh declared was 
the richest and most powerful perfume that he knew, was introduced 
from the East Indies in 1771. Most of the species in cultivation in 
British stoves are of recent introduction. Among them we may mention: 
P. Candelabrum, from Guinea in 1826; P. glaucescens, from India in 
1865; P. heterocarpus, from the Philippines, 1866; P. Houlletii, from 
Singapore, 1868; P. Veitchii, from Polynesia, 1868; P. conoideus, from 
New Caledonia, 1872; P. minor, from Bengal, 1878; P. Panchert, from 
New Caledonia, 1878; ete. 
ANDANUS CANDELABRUM. Chandelier Tree. Trunk 
30 feet high, sending down numerous branch-like roots, 
which give the tree a certain resemblance to a chandelier. Leaves dark 
green, 3 feet long and 2 inches wide; edges armed with brown spines. 
The var. variegatus is striped with white from base to tip, and the 
spines are white. Java, 1875. This is more in request than the type. 
P. CONOIDEUS (somewhat conical). Trunk branching freely, about 
14 feet high. Leaves tufted, long, arching, dark green, with smooth 
keel and spiny margins and ridges. 
P. GLAUCESCENS (somewhat glaucous). Plant herbaceous. Leaves 
dense, spreading, terminating in a long point; glaucous, edges armed 
with white spines. 
P. HETEROCARPUS (differing fruit). Leaves broad, 3 to 6 feet long, 
dark and shining above, somewhat glaucous beneath; midrib beneath, 
and margins armed with short white spines. 
P. Houttett (Houllet’s). Leaves two-ranked, greenish red above, 
coppery beneath; 4 to 5 feet long and 3 inches wide, with spiny 
margin and keel, and ending in a very long, slender point. 
P. MINOR (lesser). Stem slender, about 3 feet long, but more or less 
prostrate. Leaves inclined to become two-ranked, 14 to 2 feet long, 
keeled, and with spiny margins. 
P. ODORATISSIMA (most fragrant). Stem slender, 20 feet high. 
Leaves bright green, 3 to 5 feet long, edges armed with short white 
spines; in drooping tufts at the ends of the short branches. 
P. PANCHERI(Pancher’s). Leaves 3 to 5 feet long and 2 inches wide ; 
Principal Species. 
IV.— 33 
