1900 SUPPLEMENT—RECENT INTRODUCTIONS, &C. 607 
Platycerium—continued. 
To the species and varieties described on pp. 157-8, 
Vol. III, the following should be added: 
P. alcicorne majus.* In this variety, which requires a 
warmer temperature than the species, the foliage is much 
larger_and the plant is of a much more robust habit. See 
Fig. 636, for which we are indebted to Messrs. James Veitch 
and Sons. 
4 
Fic. 636. PLATYCERIUM ALCICORNE MAJUS, 
P. angolense. This is now regarded as a distinct species and 
not as a variety of P. ethiopicuim. 
P. Billii. According to the Kew authorities, this is merely a 
variety of P. alcicorne. 
P. Veitchii (Veitch’s). This is described as of stout, erect 
growth, the fronds being of an unusually leathery substance 
and dark green. Habitat not recorded, 1896, 
PLATYCLINIS. With the exception of P. filiformis, 
all the remaining species are best suited for pot or pan 
culture. The best of these is P. glumacewm. Its free 
habit, good constitution, and highly fragrant flowers 
render it one of the most usefal and attractive of the 
winter-flowering Orchids. The flowers are produced from 
the centre of the newly-developing growths when the 
foliage has advanced to about 6in. in length. One raceme 
of its highly fragrant flowers is suflicient to perfume a 
good-sized greenhouse. 
The best season to repot these plants is when the 
young roots are being emitted from the base of the 
young growths. The pos should be drained to within 
a few inches of the mm, and over the material should 
be placed a layer of sphagnum, finishing off with good 
fibroas peat and moss in equal proportions, and pressing 
moderately firm about the base of the bulbs. It is 
advisable to mass a quantity of plants together in one 
pot if an effective display is to be produced. As soon 
as active growth commences, they should be assigned a 
light position in the warmest house. They require a 
liberal amount of water during the growing season, but 
as soon as the bulbs have become matured, cooler and 
drier conditions shonld be afforded, only  snfticient 
moisture being supplied to keep them in a normal 
condition. 
To the species described on p. 158, Vol. IIT., the following 
should be added : 
P. cucumerina (cucumber-like). jf. light, pellucid green, 
arranged in a graceful, distichous raceme; lip with a toothed, 
brown auricle on each side of the base, running out into a 
narrow, aristate proce: middle lobe obcuneate, retuse, 
apiculate, with two brown stripes on the disk. 2. shining. 
Pseudo-bulbs_cucumber-like, at length furrowed, tufted. 
Philippines, 1885. Syn. Dendrochilum cucumerinum. 
P. rufa (reddish). /l. reddish-brown; scapes 6in. long, many- 
flowered. J. linear, acute, l0in. long. Pseudo-bulbs tufted, 
egg-shaped, jin. long. Habitat not recorded, 1898. Allied to 
BP. uncata, 
P, uncata (hooked).* #. pale green, larger; sepals and petals 
acute; racemes drooping, shorter. Otherwise resembling 
Platyclinis—continwed. 
P. filiformis. Malay Archipelago, 1897. Syn. Dendrochilum 
uncatum. 
P. latifolia (SYN. Dendrochilum latifolium) and one or two 
other species are in cultivation in the collections of specialists 
as well as at Kew. 
PLATYCODON. Chinese Balloon Flower. There 
are now white-flowered and semi-double forms of P. grandi- 
florwm. The names P. autwmnale and P. chinense are 
applied to the more robust forms. 
PLATYLOBIUM. Several species formerly included 
hereunder are now referred to Bossiewa. P. lanceolatum 
and P. ovatwm are synonyms of B. heterophylla. 
PLATYPUS CYLINDRUS. See Oak—Insect 
Pests. 
PLATYSACE. The correct name of Siebera (which 
see). Syn. Fischera (of Sprengel). 
topes mesa A synonym of Podochilus (which 
see). 
PLATYSTACHYS. Included under Tillandsia 
(which see). : 
PLECTOCOMIA. To the species described on 
p. 160, Vol. IIT., the following should be added.  Plecto- 
comias requires a hot, moist stove. 
P. crinita (hairy). 7. pinnate, very large, glaucous-green, 
whitish on the under-surface; petioles armed with white 
spines in fascicles of about six. Habitat not recorded, 1896. 
P. Griffithii (Griffith’s). 7., male spikelets sessile; females 
vedicellate. fr. three to five in each spathel ; spadix branches 
ft. to 3ft. long; spathels lin. broad. 7. (with the flagellum) 
about 20ft. long; leaflets distant, 2ft. to 3ft. long, 2in. to 3in. 
broad, decurved, glaucous beneath. Stem as thick as a man’s 
leg. Malacea, A gigantic species. 
P. khasyana (Khasia Hills). The correct name_ of 
P. assamica of Hooker (B. M. 5105) described in Vol. III. 
P. spectabilis has also been introduced, but is at present rare 
in cultivation. 
PLECTRANTHUS. 
p. 160, Vol. IIL, the following shonld be added. 
require greenhouse treatment. 
P. cylindraceus (cylindrical). (1. lilac; racemes spike-like, 
branched, 2sin. long. 2. small, ovate, crenate, cuneate at base, 
white-woolly, the upper ones lin. long. hk. Ift. Abyssinia, 
1894, A somewhat succulent under-shrub. 
P. hadiensis. Jf. lilac-purple, spotted. 7 cordate, borne on 
short petioles, doubly serrated. Abyssinia, 1894. A prostrate, 
much-branched bush, 
P. herbaceus (herbaceous), fl. lilac. 7. cordate, toothed, borne 
on long petioles. Abyssinia, 1894. An ereet herb. 
P. marrubicides (Marrubium-like) /l, white, very small, in 
dense clusters, forming interrupted spikes 6in. long. 7. small, 
obovate-cuneate, elliptic, or ovate-oblong, crenate, thick, 
fleshy. Stems erect, thick, villous. Abyssinia, 1894. A enrious 
shrub (?). 
P. Schweinfurthi (Schweinfurth’s). 
in dense, many-flowered whorls. 
Arabia, 1894. A dense, dwarf bush. 
PLECTRITIS. The compilers of the 
Kewensis”’ include this genus under Valerianella. 
PLEIONEMA. A corruption of the word Pleroma 
(which see). 
PLERANDRA (from pleres, fall, and aner, andros, 
a male; in allnsion to the numerous stamens). Including 
Bakeria (of Seemann) and Nesopanaw, Orp. Araliacee. 
A small genus (four species) of stove, unarmed, glabrous 
trees, natives of Fiji. Flowers polygamous (?); calyx 
entire or sinuate-toothed ; petals five, valvate, calyptrate, 
cohering or rarely free; stamens numerous, in two or 
soveral series; umbellets pedunculate. Fruit often rather 
the 
To the species described on 
All 
J. blue, small, disposed 
1. stalked, ovate, toothed. 
“Index 
large. Leaves ample, digitately compound; leaflets 
coriaceous, entire. Only two species haye been intro- 
duced. For culture, see Trevesia. 
P. Greeffei. Sce P. Grayi. 
P. Grayi (Asa Gray's). l. greenish ; umbellets_ twenty-six- 
flowered; umbels many-rayed. fr. Zin. long, 4in. in diameter. 
1. digitate ; leaflets nine, obovate-oblong, obtuse, attenuated to 
the petioles, the upper ones 6in, to 7in. long and 24in, broad. 
1887. Wrongly called P. Grejei. 
P. vitiensis (Fijian). jl. green, disposed in compound umbels 
Yin. to 12in. across. J. digitate; leaflets five to ten, petiolate, 
elliptic-obovate, blunt at apex. Stem unbranched. 1887, A 
small tree. SYNS. Bakeria vitiensis, Nesopanwx vitiensis. 
