244 
THE DICTIONARY OF GARDENING, 
Zomicarpa—conlinued. | 
date, the upper one distant from the approximate lateral ones ; | 
petioles thrice as long as the leaves, rather broadly sheathing 
at base. h. lft. 1860. (Ref. B. 15.) 
Z. Steigeriana (Steiger's). Fig ere blackish-purple, arched 
at apex; spadix whitish and dark fuscous-purple, not reaching 
beyond the middle of the spathe, the D "ws $ club-shaped ; 
ROW rather longer than the petioles. l. green, paler 
neath, trisected; segments eq or unequal, oblong- or 
ovate-Janceolate, acuminate at apex, abruptly cuneate at Coie: 
petioles fuscous-spotted and striolate. A. lft. 1860. 
ZOMICARPELLA (a diminutive of Zomicarpa). 
ORD. Aroidee (Aracee). A monotypic genus. ‘The 
species is a rather small, slender, tuberous-rooted, stove 
herb, allied to Zomicarpa. For culture, see Stauro- 
Z. maculata (spotted). d. inflorescence very small; spathe dull 
n, lin. long, lanceolate, spreading out nearly flat, with revo- 
ute margins ; spadix blackish, 14in. long, very slender. J. ovate, 
deeply cordate-sagittate at base, dark green, with a series of 
irregular, pale green blotches arranged around, near the margins, 
somewhat resembling those of Caladium marmoratum, but much 
smaller. New Grenada, 1881. 
ZORNIA (named after John Zorn, of Bavaria, 1739- 
1799, a botanical author) Including Myriadenus. ORD. 
Leguminose. A genus consisting of half-a-score species 
of stove or greenhouse, annual or perennial herbs, all 
American, one being also found in South Africa. Flowers 
interruptedly spicate or solitary, on axillary and terminal 
peduncles. Pods compressed. Leaves digitately two or 
four-foliolate ; leaflets often pellucid-dotted. Several 
species have been introduced, but they are more curious 
than beautiful. Probably, Z. tetraphylla is no longer in 
cultivation. 
Z. tetraphylla (four-leafieted). 
. yellow ; bracts TOUS, as 
long as the pods, five-nerved. July. fr., V: rich | 
somewhat scabrous, ee + Se idioms st ig 
l., leaflets four, digitate, 
h. Gin, Caroli * i 
Lu i ina, 1824. Greenhouse pere 
ZOSTERA (from zoster, a riband; alluding to the 
leaves). Grasswrack. Syn. Alga. ORD. Naiadacem. A 
small genus (four species) of hardy, Grass-like, marine 
plants, found on various coasts in the temperate zone. 
Flowers in two parallel series of alternating anthers and 
earpels on one surface of a linear, membranous, peduncu- 
late spadix, which is inclosed in a sheathing, leaf-like 
spathe ; perianth none. Leaves distichous, sheathing 
long-linear. Z. marina (Bell Ware; Wrack Grass, Ae? 
is a British plant, found in muddy and sandy estuaries 
near low-water mark. Z. nana is another native species. 
ZOSTEREZ. A tribe of Naiadacec. 
nnial. SYN. Anonymos 
ZOSTEROSTYLIS (from zoster, a riband, and stylos, | 
a column; alluding to the band which surrounds the | 
column). Cryptostylis is now the correct name. ORD. 
Orchidew. A small genus (seven species) of stove or green- | 
. house, terrestrial Orchids; three inhabit the East Indies | 
and the Malayan Archipelago, and the rest are Australian. | 
Flowers rather large, in a loose raceme or spike; sepals | 
and petals sub-equal, very slender, convolute and appear- | 
ing subulate when the flower opens; lip superior, sessile 
with a broad base inclosing the column, contracted above 
the column, and expanded into an undivided lamina: 
column very short; scapes leafless, simple, two or many- 
sbeathed ; bracts membranous, acute. Leaves few or 
solitary, on rigid petioles, oblong or narrow, membranous. 
For culture of Z. arachnites, the onl ies i 
ins ae y species introduced, 
lo: 
with purple, pubescent or Chez 
ZUCCAGNIA. A synonym of Dipeadi (which see). | 
ZWINGERA. A synonym of Simaba (which see). 
| 
ZYGADENUS (from :ygos, a yoke, and aden, a gland; 
the glands are usually arranged in pairs at the base of 
the perianth segments).  Erroneously spelt Zigadenus. 
Including Amianthemum and Anticlea. ORD. Liliacem. A 
genus comprising about a dozen species of hardy, bulbous 
or rhizomatous plants; one is a native of Siberia, and 
the rest inhabit North America, extending as far as 
Mexico. Flowers in a terminal, simple or paniculately- 
branched raceme; perianth persistent, the segments some- 
times connate at base in a very short, turbinate tube, 
in other cases distinct, sub-equal, flat; stamens six, little 
shorter than the segments. Leaves radical, or clustered at 
the base of the stem, long-linear. Stem erect, simple 
below the inflorescence, with or without a few small 
leaves. The best-known species are here described; all 
are North American. A moist, peat soil is best suited to 
their requirements. Propagation may be readily effected 
by divisions, or by seeds. 
Z. angustifolius (narrow-leaved). /., perianth white, turning 
purple, jin. to jin. long; lower pedicels five to six lines long; 
raceme lin. to 3in. long, Jin. to jin. broad. May and June. 
i. nearly lft. long, two to three lines broad, firmer and more 
distinctly ribbed than those of Z. Muscetozicum. Stem slender, 
lft. to lift. high, with many reduced leaves. 1825. SYNS. 
Amianthium, angustifolium, Helonias angustifolia, H. leta minor 
(B. M. 1540). 
Z. elegans (elegant). A synonym of Z. glaucus. 
Z. Fremonti (Fremont's) fl., períanth cream-coloured, five to 
six lines long, the segments oblong, obscurely clawed ; racemes 
corymbose, 2in. to 4in. long, simple or paniculate. June. l. three 
or four, linear, rather firm, lft. to 1}ft. long, three to four lines 
broad, acuminate. . 
glaberrimus (highly glabrous)* Jl., perianth white, five to 
six lines long, the segments oblong, acute, distinctly clawed ; 
pedicels ascending, three to six lines long; racemes five to ten- 
flowered, loosely paniculate, lin. to 2in. long. June. I linear, 
Grass-like, acuminate, lít. to 1}ft. long, three to four lines broad. 
Stem erect, with many reduced leaves. Rhizome creeping. À. aft. 
to 3ft. 1811. SYN. Helonias bracteata (B. M. 1703). 
Z. glaucus (glaucous-leaved). jl., perianth greenish externally, 
whitish inside, five to six lines took: ehe segments oblong, thickly 
nerved; pedicels ascending, jin. to lin. long; racemes loose, 
2in. to 4in. long, lin. to 2in. broad, simple or loosely paniculate. 
Summer. J. four to six, firm, linear, glaucous-green, thickly 
nerved, lft. to lift. long, iin. to jin. broad. Stem 6in. to 2ft. 
high, with a few reduced leaves. 1828. SYNS. Z. elegans, 
Helonias glaberrima (B. M. 1680). 
Z. Musezxtoxicum (fiy-poison). ji., perianth greenish-white, sin. 
to iin. long; lower e icels gs 3in. long; raceme dense, 
oblong, 2in. to 4in. long, lin. to 14in. broad. Summer. l. many, 
linear-lorate, membranous, nearly lft. long, jin. to jin. broad, 
obtuse. Stem slender, lft. to 2ft. high, with a few much-reduce 
leaves, slightly thickened at base. 1758. (R. G. 1121, f. 1.) SYNS. 
Amianthium Musccetoxicum, Helonias leta (B. M. 803; L. B. C. 
Z. Nuttallii (Nuttall’s). ., perianth white, iin to jin. long? 
racemes often simple, dense above, 2in. to 3in., rarely Am, to 6in., 
long; lower pedicels jin. to 3in. long. June. I four to six, firm, 
linear, lft. to 14ft. o lin. to jin. broad. Stem 6in. to 18in. 
high, with a few reduced leaves. 1883. (R. G. 1121, f. 2.) 
ZYGOGLOSSUM. A synonym of Cirrhopetalum 
(which see). 
ZYGOMENES. A synonym of Cyanotis (which see). 
ZYGOMORPHOUS. A term applied to anything 
that can be bisected in only one plane into similar halves. 
ZYGOPETALUM (from zygos, a yoke, and petalon, 
a petal; in the original species the sepals and petals 
adhere by their bases). Including Bollea, Galeottia, Hunt- 
leya, Kefersteinia, Pescatorea, Promenæa, and Warsce- 
wiezellaS* ORD. Orchidee. A genus comprising about fifty 
species of very handsome, stove or greenhouse, epiph 
Orchids, inhabiting the warmer parts of America. Flowers 
large and showy; sepals and petals sub-equal, free oF GES, 
shortly connected at base; lip affixed to the foot of > 
column, slightly incumbent, forming a short chin, tno 
lateral lobes spreading or erect, clothing the column, me 
middle one flat and spreading; lip bearing à transverse 
crest, which, from being ribbed or plaited, has the apr 
ance of a ruff or frill; column incurved, semi-tereió 
wingless or shortly two-winged at apex, produced in * 
short foot at base; pollen masses four ; floriferous sespes 
