608 THE DICTIONARY 
OF GARDENING, 
PLEROMA. According to the Kew authorities, 
Tibouchina is now the correct name of this genus, most of 
the specific names remaining unchanged. ‘To the species 
described on p. 162, Vol. III., the following should be 
added. See also Chetogastra. 
P. macranthum is a form of P. semidecandrum. 
P. marmoratum (marbled). jl. bluish-purple, large. J. ovate, 
dark green, blotched with cream-colour. Habitat not recorded 
(probably a garden variety), 1884. A bushy shrub. 
P. meiodon (smaller-toothed). jl. purple, disposed in pedun- 
culate cymes; corolla 4in. in diameter. /. ovate, lin. long. h. 6ft. 
Brazil, 1895, A loose shrub. 
P. villosum. The correct name is Melastoma villosum. 
PLEUROCOCCUS VULGARIS. 
Fungi. 
PLEUROTHALLIS. To the species described on 
p. 163, Vol. III., the following should be added, but as 
stated in Vol. III., the species generally are of little 
horticultural value. 
P. atropurpurea (dark purple). The correct name of this 
plant is Cryptophoranthus atropurpureus. 
P. Autraniana (Autran’s). jl. light yellow, spotted and striped 
with purplish-brown, disposed in’ racemes. Habitat not 
recorded, 1895. Allied to P. longissima. 
P. aviceps. The correct name is Masdevallia aviceps. 
P. coccinea (scarlet). A synonym of Rodriguezia secwnda. 
P. convergens (converging). /l. white, fragrant, disposed in 
racemes. Brazil, 1899. Plant tufted. 
P. foliosa (leafy). A synonym of Gomeza foliosa. 
P. gelida (ice-like). jl. creamy-white or greenish-white, in 
racemes somewhat resembling a Lily of the Valley. Summer. 
l. stout, oblong, deep green. h. lft. Jamaica, 1841. 
P. glanduligera (gland-bearing). 1. pale yellow, small, 
streaked with green and reddish-purple, about a dozen on a 
slender scape 6in. long. Summer. /. small, ovate, fleshy. 
Brazil. 
P. glossopogon (bearded-tongued). 
P. insignis. 
P. immersa (immersed). fl. rich claret or purplish, disposed in 
a pendulous raceme; peduncle tightly embraced in the hollow 
of the lower end of the leaf (hence the specific name). | /. 3in. 
to 6in. long, obovate, obtuse. Colombia, i891. (B. M. 7189.) 
P. inflata (inflated). #. whitish, solitary. J. 6in. long, lin. 
broad, Stems 6in. long. Colombia, 1894. 
P. insignis (remarkable).* fl. pale, pellucid whitish-green, 23in. 
long ; upper sepal with three dull purple stripes, long-attenuate 
above, the lower connate pair having three dull purple stripes 
near the margin ; feet with a broad base, bristle-like above ; 
central lobe of lip dark blackish-purple, ligulate, villous at apex, 
the side ones halt as long, faleate-linear; peduncle two-flowered. 
7. sessile, oblong or linear-oblong, 3zin. long. Colombia, 1879, 
(B. M. 6936.) SYN. P. glossopogon (of gardens). 
P. Kreenzlini (Krenzlin’s). jf. purple and_ silvery-white. 
Habitat not recorded, 1894. A singular little species. 
P. lamprophyllum (shining-leaved). jl. pale straw-yellow, 
deliciously scented; racemes long, erect, many-flowered, pro- 
duced from the tops of the stems. Central America. 
P. lepanthiformis (Lepanthes-like). A synonym of P. villosa. 
P. Leucopyramis (white-pyramid). l. milk-white, small, freely 
produced, Autumn. l. linear-ligulate, 2in. to 3in. long. 
Stems 2in. to din. high, clothed with dark brown sheaths. 
Probably Costa Rica. (R. X. O. iii., t. 210, f. 1-9.) 
P. liparauges (bright-beaming). 7. light reddish-ochre, pellucid, 
remarkably thin; sepals linear; petals nearly so, but broader at 
the base; lip light ochre, with an orange margin at the apex, 
oblong, blunt-acute, rounded at base; column green, semi-terete, 
with angular wings. J. petiolate, oblong, blunt-acute, the upper 
surface spotted mauve-purple, the lower nearly wholly mauve. 
Brazil, 1885. A small species. * 
P. longissima (very long). /l. white, tinged with yellow, dis- 
posed in a dense, one-sided raceme; scape slender, erect, 
upwards of lft. in length. Spring. J. solitary, oblong, 5in. 
long, lin. broad, thick, fleshy, deep green. Stem slender. 
West Indies. (H. E. F. ii., t. 123; L. B. C., t. 949.) Syn. 
P. racemiflora. 
P. macroblepharis (large-fringed). fl. resembling those of 
P. Barberiana, but with narrowly acicular petals and a flat, 
hairy lip. ¢. longer and more acute than those of the species 
just alluded to. Peru. Syn. Masdevallia Culex. 
P. maculata (spotted). A synonym of Cryptophoranthus 
maculatus. 
P. ophiocephala. A synonym of Restrepia ophiocephala. 
P. ornata (ornamental). jl. pale purplish-brown, less than 4in. 
across; margins of the sepals densely fringed with white 
tendrils, which are agitated by the slightest touch or draught. 
1. about lin, long. Colombia, 1890. (B. M. 7094.) 
See Pinus— 
A garden synonym of 
Pleurothallis—continued. 
P. pergracilis (very slender). jl. yellowish, very small, with 
purple lines; scapes 4in. high. 7. small, spathulate, densely 
tufted. British Honduras, 1893. 
P. pernambucensis (Pernambuco). 
small; raceme 4in. long, six-flowered. 
Brazil, 1894, 
P. platyrachis (broad-rachised). fl. golden-yellow ; lip aa 4 
a deep central band with an elevated ochreous ridge on eac 
side ; raceme lin. to lin. long, six- to ten-flowered, the rachis 
stout. October. J. 5in. to 6in. long, lin. broad. Costa Rica, 
1884. (B. M. 7129.) Syn. Masdevallia platyrachis. 
P. platystachys (broad-spiked). jl. green, dotted with 
purple, small, disposed in a compressed spike; scape as long 
as the leaves, with about four bracts. J. lanceolate, bidentate 
at apex. Brazil, 1888. Plant tufted. 
P. puberula (slightly downy). jl. green and dull yellow, 
fragrant, small, numerous. Habitat not recorded, 1893. 
P. punctulata (slightly dotted).* . 1jin. across; sepals and 
petals light yellow, spotted with purplish-brown; lateral 
sepals connate into a concave, oblong body, only the points 
being free; lip deep maroon, papillose above. J. lanceolate- 
oblong, 3in. to 34in. ong. very stiff and leathery. Stems about 
2in. high. Colombia, 1885. A handsome species. 
P. pyrsodes (torch-like). jl. orange-coloured, solitary. 
very short-stalked, numerous. Central America, 1876, 
P. racemiflora (raceme-flowered). A synonym of P. longissima, 
P. Raymondii is the proper spelling of P. Reymondii. 
P. Regeliana (Regel’s). /l. gaping; dorsal sepal ochreous, erect; 
lateral ones. reddish, declinate, connate; petals whitish; lip 
rose-coloured, with some purple marks at base, unguiculate, 
oblong-ligulate ; bracts ochreous; peduncle short, recurved. 
1. very coriaceous, rounded at base, oblong or ovate-oblong, the 
apex slightly emarginate. Stem climbing. Minas Geraes, Brazil, 
1886. (R. G. 1886, p. 51.) 
P. rhombipetala (rhomboid-petaled). 
small, disposed in loose racemes. 
Guiana, 1893. 
P. Roézlii (Roézl’s).* 7. of a deep blood-purple, partly ex- 
panded, five or six in a one-sided raceme; sepals 1jin. long, 
the lateral ones connate into an ovate blade; lip tongue- 
fl. green and purple, 
l. oblong, lin. long. 
1. stout, 
fl. green and purple, 
Mount Roraima, British 
shaped. Spring. /. oblong-lanceolate, Sin. to 8in. long, light 
G green, Stems erect, 3in. to 6in. high, with pale brown 
sheaths. Colombia, 1885. An attractive species. 
P. rotundifolia (round-leaved). 
on short scapes. 
P. rufa (reddish). 
small ; 
long. 
Jl. yellow and purple, borne 
2. orbicular, sin. long. Jamaica, 1895. 
fl. dull brownish-red, with a purple lip, 
raceme short, fleshy. J. fleshy, fin. long. Stems 4in. 
Mexico, 1898. 
P. stenosepala (narrow-sepaled). /., sepals and petals light 
green; lip of a light brownish-buff shade. 
P.. teretifolia (terete-leaved). 7. 
slender, pendulous racemes. 7. 
Qin. high. Brazil, 1892. 
P. tribuloides (Tribulus-like). 7. brick-red, 
numerous. . about 2in. Jamaica, 1887. 
species. 
P. unistriata (once-striated). jl. whitish, lined with purple, 
small, few ona slender scape 24in. long. 4 lin. long. Habitat 
not recorded, 1893. 
P. villosa (villous). #7. purple, small. 7. narrow-oblong-lanceolate, 
petiolate, twice as long as the raceme. /. 4in. Mexico, 1894. 
Syn. P. lepanthiformis, 
PLOCOGLOTTIS. To the species deseribed on 
p. 164, Vol. III., the following should be added: 
P. acuminata (taper-pointed). 7. lin. across; dorsal sepal 
erect, the lateral ones finely acuminate; lip quadrate, with 
rounded angles; raceme very lax, simple or branched ; scape 
10in. or more in length, J. solitary, 10in. fo 12in. long, elliptic- 
lanceolate. Perak, Java, &c. . 
P. javanica (Javanese). fl. pale yellow, speckled with red, 
fin. across; dorsal sepal arched, the lateral ones and the 
petals falcate; lip broadly obovate, with rounded angles and 
tip; raceme 8in. to 10in. long; scape much longer than the 
leaf. @. solitary, 10in. to 12in. long, 3in. to 4in. broad. Java. 
PLOCOSTIGMA. A Podochilus 
(which see). 
PLOWRIGHTIA MORBOSA. See Black Knot. 
PLOWRIGHTIA (SCLERODERRIS) RI- 
BESIA. See Gooseberry Fungi. 
PLUCHEA. To the species described on p. 164, 
Vol. IIL., the following should be added : 
P. subdecurrens (somewhat decurrent). 
pedicellate, many in a terminal corymb. 
i. decurrent, lanceolate-linear, acute. 
terete. h. 2ft. Mexico. 
adnata, Conyza asteroides. 
brown, fleshy, disposed in 
narrow, terete, forming a tuft 
_ very small, 
An inconspicuous 
synonym of 
fl.-heads yellow, 
August and September. 
Stems shrubby, erect, 
Greenhouse shrub. Syns. Baccharis 
