RENEALMIA 



736 



RETAMA ALBIFLORA 



and in all for less than half the cost of hot-water pipes. 

 The saving in tan and labour is also very great. In 

 some places tan costs igs. per cart-load, and where it 

 is cheaper, the trouble and litter incident to its employ- 

 ment, and the dangers of loss from fungi and insects, of 

 which it is the peculiarly fertile foster-parent, render it 

 objectionable as a source of heat ; and whenever the tan 

 has to be renewed, the trouble and destruction of plants 

 are always great. 



" In my new propagating house," says Mr. Rendle, 

 " the tank or cistern is placed in the centre, with a walk 

 surrounding it, so as to enable the propagator with 

 greater ease to attend to the plants, &c. 



" On the outside of the house is a fire-shed, in which 

 the boiler is fixed. The tank, made of wood, i or 

 2 inches thick, which I find the cheapest material (it 

 also prevents the water cooling so fast as it does either 

 in stone or iron), may be lined with lead or zinc. Exactly 

 in the centre of the tank is a partition, serving the double 

 purpose of causing the water to circulate, as well as 

 to support the edges of the slates, an aperture being 

 left in the partition, of about 2 inches in breadth, to 

 allow the water a free passage. The flow-pipe enters 

 near the appendage of the tank, at the mouth of which 

 pipe a piece of perforated copper is placed, as also at the 

 return-pipe, to prevent dirt and sediment from finding 

 their way into the boiler. After everything is properly 

 fixed, the tank is filled with water, which, of course, at 

 the same time fills the boiler. . . . The tank is about 

 4 inches deep. Across it, and resting on its sides, are 

 placed slate stones about i inch thick, cut square at 

 the edges. These are fastened to each other by Roman 

 cement, or Aberthaw lime, to prevent a superfluity of 

 steam from escaping into the house. . . . Around the 

 edges of the slates a piece of inch board, about 9 inches 

 deep, should be placed to enclose the sawdust, sand, moss, 

 or other plunging material." 



A Pinery may also be fitted up with Mr. Rendle's tank 

 beneath the plunging material. 



It is described as " a very useful and most desirable 

 structure for the growth of the Pine Apple, with a hollow 

 wall, recommended by all garden architects in preference 

 to a solid wall the heat or cold being not so readily 

 conducted as through a solid mass of masonry." Mr. 

 Rendle might have added, that hollow walls are also 

 much drier. Rendle's Treatise on the Tank System. See 

 STOVE and HOTBED. 



RENEA LMIA, of Linnaeus the younger. (Commemo- 

 rative of Paul Renealme, a French botanist. Nat. ord. 

 Scitaminaceae. Allied to Alpinia.) 



Stove perennial herbs. Divisions in spring. Fibrous 

 loam, leaf-mould, some old cow-dung rubbed up finely, 

 and sand. 

 R. africa'na (African). Trop. Africa. 



bracteo'sa (large-bracted). W. Ind. 



calcara'ta (spurred). See ALPINIA CALCARATA. 



exalta'ta (tall). 8-20. Scarlet. July. W. Ind. 1820. 



jamaice'nsis (Jamaican). See R. OCCIDENTALS. 



nu'tans (nodding). See ALPINIA NUTANS. 



occidenta'lis (western). 5-6. White. July. W. Ind. 

 1793- 



racemo'sa (racemose). 5. White. August. Trop. 

 Amer. 1752. 



RENEALMIA of R. Brown. (Nat. ord. Iridaceje. 

 See LIBERTIA.) 

 R. grandiflo'ra (large-flowered). See LIBERTIA GRANDI- 



FLORA. 



panicula'ta (panicled). See LIBERTIA PANICULATA. 

 pulche'lla (pretty). See LIBERTIA PULCHELLA. 



REQUIE'NIA. (Commemorative of M. Requien, a 

 French botanist. Nat. ord. Leguminous Plants [Legumi- 

 nosn?]. Linn. i6-Monadelphia, 6-Decandria. See TEPH- 

 ROSIA.) 

 R. obcorda'ta (reversed- heart-leaved). See TEPHROSIA 



OBCORDATA. 



sphcerospe'rma (round-seeded). See TEPHROSIA 



SPH^ROSPERMA. 



RESE'DA. Mignonette. (From reseda, to calm ; sup- 

 posed virtue for external bruises. Nat. ord. Weld-worts 

 [Resedaceae]. Linn. ii-Dodecandria, 3-Trigynia.) 



All by seeds ; the half-shrubby kinds also by cuttings ; 

 seeds must be sown at different times, according as the 

 bloom is wanted. The beginning and middle of May is 



early enough to sow in the open border. Though usually 

 treated as annuals, most of the Mignonettes may be 

 grown as under-shrubs or perennials, if they are pre- 

 vented seeding freely, and kept from frost in winter. 

 We have seen the common Mignonette that had been 

 kept in a pot about eight years, and flowered freely every 

 season. See MIGNONETTE. 

 R. a'lba (white). 2. White. Europe, &c. 

 chine'nsis (China). 2. Yellow, green. June. China. 



1819. 



glau'ca (sea-green), i. Greenish. Pyrenees. 

 ,, lu'tea (yellow). 1-2. Pale greenish-yellow. Europe 



(Britain). " Base Rocket." 

 Lu'teola (little-yellow). 2-3. Greenish-yellow. 



Europe (Britain) ; Orient. " Dyer's-weed." 

 odora'ta (scented), i. Green, red. August. 1752. 



" Mignonette." Origin unknown. 



frute'scens (shrubby). 2. August. Egypt. 1752. 

 Phytcu'ma (Phyteuma). ij. Green. Mediterranean 



region. 



,, suftruticulo' sa (sub-shrubby). See R. ALBA. 

 trunca'ta (abrupt-ended-leaved) . i. Yellow. June. 



Macedonia ; Anatolia. 1836. 

 virga'ta (twiggy). 1-2. Green. Spain and Portugal. 



GARDEN. See NURSERY. 

 That period when a plant is not growing. 

 REST-HARROW. Ono'nis. 



RE'STIO. (From restio, a rope-maker; ropes are 

 made of the cord-like twigs in South Africa. Nat. ord. 

 Restiacea?.) 



Greenhouse evergreen, with much-branched shoots, 

 like slender whip-cord or coarse thread. Divisions. 

 Loam, leaf-mould, and sand. 



R. subverticilla' tus (sub-whorled). 2-3. Brown. S. 

 Africa. 



RESTRE'PIA. (Commemorative of Joseph E. Restrep, 

 a South American traveller and naturalist. Nat. ord. 

 Orchidaceae. Allied to Pleurothallis.) 



Stove epiphytical orchids. Divisions at the com- 

 mencement of growth. Fibre of peat, sphagnum, and 

 plenty of crocks in the pots. 

 R. antenni'fera (antennae-bearing) of H. B. & K. Yellow, 



striped with red-purple. Colombia. 1892. 

 antenni'fera (antennae-bearing) of Lindley. See R. 



MACULATA. 



,, aspasice' nsium (friendly). J. Deep yellow, spotted 



with crimson. Venezuela. 1904. 



daya'na (Dayan). Yellow, marked with brownish- 

 purple. Costa Rica. 1875. 

 e'legans (elegant). J. Yellow, spotted with purple. 



Venezuela. 1872. 

 Falkenbe'rgii (Falkenberg's). Yellow, with white and 



purple marks. Colombia. 1880. 

 gultula'ta (finely-spotted). Whitish, thickly spotted 



with crimson. Ecuador. 1836. 



I.ansbe'rgti (Lansberg's). See R. XANTHOPHTHALMA. 

 ,, leopardi'na ro'sea (rosy-leopard-spotted). Lateral 



sepals white, thickly spotted with rose ; the rest 



lined deep rose. 1904. 

 ,, macula' ta (blotched). Yellow, blotched with maroon. 



Colombia. 1875. 



,, ophioce' phala (snake's-head). Yellow. Spring. Gua- 

 temala and Mexico. 1837. 

 ,, purpu'rea (purple). Purple. 

 ,, pandura'ta (fiddle-shaped). Front of lip whitish, 



with purple-brown spots. Colombia. 1887. 

 ,, prore'pens (creeping-forward). Yellow. Rhizomes 



creeping in masses. Costa Rica. 1877. 

 ,, reichenbachia'na (Reichenbacbian). Yellow, spotted 



with dark purple. Costa Rica. 1875. 

 ,, sangui'nea (blood-red). Crimson. Colombia. 1896. 

 Shuttlewo'rthii (Shuttleworth's). Andes. 

 ,, stria' ta (lined). Yellow, striped with purple. Colombia. 



1891. 

 ,, xanthophtha'lma (yellow-eyed). Yellow, spotted 



with purple ; centre yellow. Guatemala. 1861. 



RESURRECTION PLANTS. Anasta'tica hierochu' ntica, 

 Mesembrya'nthemum Tripo'lium, and Selagine'lla lepido- 

 phy'lla. 



RETA MA ALBIFLO'RA, See CYTISUS ALBUS. 



