AN ENCYCLOPADIA 
OF HORTICULTURE. 307 
Richardia—continued. 
establish themselves, so as to flower early the following 
season. Richardias require a very rich soil; a compost of 
good loam and cow-manure in nearly equal parts will suit 
them when established. The suckers should be inserted 
singly in pots proportionate to their size, and subjected 
to a little heat to start them. When under glass through 
the summer, they should be placed in a situation fully 
exposed to light, and about the end of July it is well 
to transfer them to the open air, in order to get the 
growth matured and well ripened—an essential towards 
free-flowering. Before the appearance of frost, the plants 
must be again housed’; exposure to anything below freez- 
ing point proves very destructive to the foliage. An 
excellent plan of treating Richardias, when established, 
is that of planting them out each year in the open 
garden; a piece of ground should be prepared by adding 
a heavy dressing of manure, and the plants should then 
be turned out of their pots, and divided, or kept intact, 
according to their size and the quantity required. If 
planted about 15in. apart, but little attention will be 
necessary through summer, beyond supplying an abund- 
ance of water, which Richardias require at all times. | 
About the middle of September, the plants may be lifted 
and potted carefully without much injury being caused. 
In this way, good, strong specimens may soon be obtained ; 
they may be grown singly in 5in. or 6in. pots, or two 
or three together in a pot of larger size. Aphides 
are usually troublesome in spring, but an occasional fumi- 
gation will destroy them. 
R. zthiopica (African). A synonym of R. africana, 
è 
if 
Bers ao 
— — 
— — 
— — = 
Fie. 380. RICHARDIA AFRICANA. 
R. africana (African).* Lily of the Nile; White Arum or 
Trumpet aly’ Ri — usually dead-white, large, rolled 
— — but —— and — — g e —— 
right OW, CO cove wi lowers. 
— boginie, about half as broad as they are long, 
deep green, unsp spidate-apiculate at apex, borne on long 
ttad 
* 
Richardia—continued. $ 
petioles. h. 2ft. 1731. Av elegant and popular plant. See 
Fig. 380. SYNS. R. thien. Caila IRGA. (B. M 832). 
R. albo-maculata (white-spotted).* fi., spathe greenish-white, 
smaller and less Sepahaed: Eiai. in x —— Summer. l 
- elongate-hastate, borne on rather short petioles, cuspidate-apicu- 
late at apex, marked with oblong, wi te, traneldiesnt Kioo 
pau with the gr h. 2ft. 1859. (B. M, 5140; F. d. S. 
$i, 256 A = 
R. hastata (halbert-leaved). /l.; spathe nish-yellow, with a 
campanulate tube, and a long-cu: ate blade. Summer. l, sub- 
flaccid, hastate-ovate, about halt as broad as they are long, 
cuspidate-apiculate at omg unspotted, very similar to those of 
R. africana. h. 2ft. 1859. (B. M. 5176.) 
R. melanoleuca (black and white).* fl., spathe ps yellow, 
with a black-purple spot at the base, o long, widely expanded. 
terminating the tall, hispid stems; spadix white, one-third 
shorter than the spathe ; peduncle slender, dark bristly below. 
Summer. Z. oblong or ovate, — marked with 
oblong, translucent, white spots. A. 14ft. 1869. (B. M. 5765.) 
RICHARDIA (of Linnzus). A synonym of Richard- 
sonia (which see). 
RICHARDSONIA (named in honour of Richard 
Richardson, an English botanist, who published a work 
on horticulture, in 1699). Syn. Richardia (of Linneus). 
ORD. Rubiacee. A genus comprising five or six species 
of stove, erect or prostrate herbs, with perennial roots, 
natives of the warmer parts of America. Flowers 
white or pink, small, densely capitate. Leaves opposite, 
sessile, or shortly petiolate, ovate. R. scabra. (Mexican 
Coca Plant) has been employed in medicine under the 
name of White Ipecacuanha, but its roots are smaller 
than those of the true plant, and less certain in their 
effects. Probably none of the species are now grown in 
this country. 
RICHEA (named after Cl. A. Riche, a French 
naturalist, who died in 1791 when taking part in 
the Australian Expedition of Entrecasteaux). In- 
cluding Oystanthe. ORD. Epacridew. A genus 
comprising eighteen species of greenhouse shrubs 
or small trees, inhabiting the mountains of Tas- 
mania and South-eastern Australia. Flowers white 
or pink, in terminal spikes or panicles; calyx of 
five sepals, bracteate and bracteolate ; corolla ovoid 
or conical, the lobes not separating ; stamens hypo- 
gynous. Leaves sheathing at base, narrow, short 
or elongated, concave; sometimes grass-like, entire 
or serrulated. Branchlets marked with the scars- 
of fallen leaves. The following are the only 
species introduced. For culture, see Sprengelia. 
pandanifolia (Pandanus-leaved). fi. small, in ovate 
* nicles, 2in. to ve jong, on peduncles ĝin, to Sin. 
kaz Trunk naked, simple or sparingly branched, 6in. 
to Yin. in diameter, crowned by a large tuft of long, 
wavy leayes, like those of a Pandanus, often 3ft. to 
long, tapering into a lon; int, and 
toothed. A. 2ft. to 36ft. Tree. 
R. —— Ades (Sprengelia-like). M. reddish, in ter- 
minal, globular, 1 — each one nearly sessile 
within a floraj leaf. June. l broadly ovate-lanceolate, 
tapering to a short, rigid point, straight or slightly un- 
dulated or twisted, jin. to 4in. long, the floral ones gra 
dually smaller. 1836. A bushy shrub, usually low, but 
sometimes attaining a height of several feet. 
RICHEA (of Labillarditre). A synonym of 
Craspedia (which see). 
RICINUS (from ricinus, a tick; which insects 
the seeds are supposed to resemble). Oxp. 
Euphorbiacee. A monotypic genus. The species 
is with us a well-known, tall, half-hardy, annual 
herb, but, in warmer regions, it grows as an ar- 
borescent shrub. Castor oil is yielded by the 
seeds of this plant, which, together with the cap- 
sules, are very variable. Any rich soil is suit- 
able for the culture of Ricinus, and propagation 
may be readily effected by seeds, which should be 
sown and placed in heat early in March. It is best to 
sow single seeds in small pots, as the roots quickly 
become matted when there are many plants together, — 
and cannot be separated without causing a severe check. 
