1900 SUPPLEMENT—RECENT INTRODUCTIONS, &C. 
Oleandra—continued. 
however, be used; thick turfs of it should be placed one 
above another, and tightly skewered together by means 
of wooden pegs so as to form a pyramid. 
Another way of employing Oleandras is to use them 
for covering pillars indoors; but as they take possession 
of any genial surface, fastening themselves to it by means 
of short, fibry roots, it is indispensable that these should 
be provided with proper nourishment as the rhizomes 
extend. The best plan is to fix round the pillar a wire 
cylinder of 2in. to 3in. mesh, which should be filled up, 
as the rhizomes extend, with a mixture of two parts 
fibrous peat and one of sphagnum, rammed tolerably 
close. For hiding pillars, walls, or unsightly upright 
supports, the Oleandras are quite as useful as the better- 
known Davyallias, and do not require any more special 
attention ; although not perhaps quite such rapid growers, 
they possess the advantage of retaining their foliage 
longer than is the case with most Davallias. All the 
Oleandras known to cultivation require an abundance of 
water at their roots throughout their growing season, and 
they are’ greatly benefited by occasional syringings 
overhead during the summer. Although they may be 
propagated from spores, they are usually increased by 
division of the rhizomes any time between April and 
September. 
To the species described on p. 481, Vol. II., the following 
should be added: 
0. chinensis (Chinese). A synonym of 0. Cumingii. 
0. Cumingii (Cuming’s). sti. forming, about 2in. from the 
densely brown-scaly rhizome, a sort of joint, from which the 
fronds, when decayed, become detached. fronds Ift. to 14ft. 
long, lin. broad, soft, gradually narrowed to both ends; mid- 
rib slightly hairy. sori rather large, light brown, forming a 
Assam, 
scarcely interrupted line near the midrib. &e. SYN. 
O. chinensis. 
‘i 
= 
ae 
Li 
WN 
DY 
Ai 
Fic. 598. OLEANDRA CUMINGII LONGIPES. 
O. C. lo: 
pes (long-stalked). A variety having longer stipes 
than in the type. 
See Fig. 598. 
563 
Oleandra—continued. 
0. C. Sibbaldii (Sibbald’s). 
than in the type. 
midrib. Tahiti, &e. 
0. Sibbaldii (Sibbald’s). A form of 0. Cumingii. 
O. Wallichii. Although similar in habit to the other species, 
this is quite distinct on account of the marginal hairs along 
the whole length of the fronds, 
OLEARIA. Daisy Bush. To the species described 
on pp. 481-2, Vol. II., the following should be added: 
O. dentata (toothed), of Hooker. A synonym of 0. macrodonta, 
0. ilicifolia (Holly-leaved). _j.-hkeads resembling those of 
O. dentata (which this species much resembles). 7. longer 
and narrower, deeply waved on the margin, with spiny teeth. 
Branches and twigs nearly glabrous. New Zealand. Plant 
Musk-scented, hardy. : 
O. insignis (remarkable).* l.-heads white, lin. across: florets 
very numerous; peduncles 6in. to 10in. long, one - headed. 
al fronds thinner and more hairy 
sort in very irregular lines not so near the 
i. coriaceous, oblong, obtuse, quite entire, 4in. to 6in. long. 
Stems densely clothed with white or reddish felt. New Zealand. 
A low, flat-topped, robust, greenhouse bush. (B. M. 7034.) 
0. macrodonta (large-toothed). _f.-heads white, with a red 
centre, small, Daisy-like, disposed in large, hemispherical 
corymbs, J. elliptic-oblong, undulated, coarsely toothed, some- 
what Holly-like in appearance. New Zealand, 1886. Hardy 
shrub or tree. (B. M. 7065; GG. n. s., XXVi., pp. 304-5.) 
Syn. 0. dentata (of Hooker). 
0. myrsinoides (Myrsine-like). fl.-heads pale purple, narrow, 
three to five together on axillary peduncles forming a leafy, 
oblong panicle. May. J. alternate, obovate to oblong, less 
than sin. long. Australia, 1835. A silvery or silvery-tomentose, 
greenhouse shrub, low and straggling or densely bushy. 
0. nitida (shining). __jl.-heads white, with yellowish disk, in 
close, many-flowered, rounded corymbs; ‘florets fifteen’ to 
twenty. /. resembling those of O. fwrfwracea, but more ovate, 
less coriaceous, sinuate-toothed, acute or acuminate, the 
tomentum more silvery and shining. New Zealand, 1886. A 
small, hardy tree. (G. C. n.s., xxvi., pp. 44-5, f. 10.) 
0. nummularifolia (Moneywort-leaved). fl.-heads white, 
solitary, on peduncles longer or shorter than the leaves. 
1. closely-set, erect, spreading, or deflexed, jin. to 4in. long, 
orbicular, oblong, obovate, obtuse, quite entire. Branches 
stout, erect, often glutinous. A. lft. to 10ft. New Zealand (at 
4000ft.), 1899. Hardy. 
O. stellulata (slightly stellate). 
0. Gunniana. 
O. Traversii (Travers’). _l.-heads din. long, very numerous, on 
slender pedicels; panicles numerous, cymose, axillary and 
terminal, much-branched. 7. flat, opposite, oblong- or ovate- 
lanceolate, acuminate, quite entire, 14in. to 24in. long, glabrous 
and shining above, silky-downy beneath (as well as the panicles 
and branches). h. 30ft. to 35ft. New Zealand, 1887. (G. C. 
1887, ii., p. 187.) Only hardy in very favoured localities. 
OLEOBACHIA PALUSTRIS. A corruption of 
\ Delabechea palustris. Delabechea is now included under 
| Sterculia (which see). 
OLYRA (the name of a kind of grain mentioned b 
Herodotus and others as food for horses, along with 
Barley). Orp. Graminee. A genus embracing about 
twenty species of tropical Grasses, all, except one or two 
African, being American; they are remarkable for the 
great variety they display in habit, foliage, inflorescence, 
and sexuality of the spikes. Only one species calls for 
mention here, It forms a very elegant, evergreen pot 
plant for the stoye, thriving in any fairly good soil, and 
may be increased by seeds or by divisions. 
The correct name _ of 
0, concinna (neat).* 7., spikes rather shorter than the leaves, 
terminal and axillary; spikelets three, two female and one 
male. January. 7. lin, long, uniform, distichous, sessile in 
very short sheaths, almost imbricated, ovate, cuspidate-acumi- 
nate, often reddish towards the tips. Stems 6in. to 10in. long, 
filiform, at length drooping. Costa Rica, 1891. (B. M. 7469.) 
OMPHALODES. Though usnally regarded as 
healthy, O. Luciliz and O. verna are better for protec- 
tion in winter. To the species described on PP. 482-3, 
Vol. II, the following should be added. See also 
Paracaryum. 
O. Krameri (Kramer’s).* jf. of a rich blue, about as large as 
a sixpence. 1. ample. Japan, 1882. A beautiful addition to 
our hardy plants; it is larger in growth than either O. Lucilie 
or O. verna. 
0. verna alba (white). This only differs from the type in 
having white flowers. 
