EHE 



480 



EHI 



Rheum, Linn. From rha, the Wolga ; the first 

 plants were brought from its banks. Linn. 9, 

 Or. 2, Wat. Or. Polygonacece. The culture 

 and uses of the Rhubarb are well known. 

 The plants all thrive well in a rich loamy soil ; 

 and are increased by divisions of the roots, or 

 by seed. Synonyms : 1, R. Embcli. 

 acuminatum. Bed . . 3, H. Her. P. 4 Himalay 1S50 

 australe 1 . Purple . 5, H. Fu. P. 8 Nepal . 18^3 

 austiiacum . White . 5, H. Fu. P. 5 Austria . 1S00 

 caspicum . . White . 5, H. Fu. P. 6 Russia .1817 

 compactum . Wht. grn. 5, H. Fu. P. 3 Tartary . 1758 

 crispum . . White . 5, H. Fu. P. 5 . 1800 



fenestratum. White . 5, H. Fu. P. 6 . 1780 



hybridum . Wht. grn. 5, H. Fu. P. 6 Asia . .1778 

 leucorhlzum. Striped . 5, H. Her. P. 4 Siberia . 1827 

 nbbile . . Bed grn. 5, H. Her. P. 6 Himalay 1850 

 nutans . . White . 5, H. Fu. P. 6 Siberia . 1800 

 palmatum . Wht. grn. 6, H. Fu. P. 5 Bcharia. 1763 

 Rhaponticum Wht. grn. 5, H. Fu. P. 4 Asia . . 1573 

 Rlbes . . Wht. grn 5, H. Fu. P. 2 Levant . 1724 



sibiricum . White . 5, H. Fu. P. 6 Siberia . 1800 

 tataricum . Wht. grn. 5, H. Fu. P. 3 Tartary- . 1793 

 undulatum . Wht. grn. 5, H. Fu. P. 4 China . 1734 



Rhexia, Linn. From rhexis, a rupture ; from 

 its astringent qualities, it is supposed to cure 

 ruptures. Linn. 8, Or. 1, Nat. Or. Melasto- 

 macece. This is a genus of very elegant plants 

 when in flower. The plants grow best in a 

 bed of peat soil, but are sometimes grown in 

 pots in the same kind of soil. They are 

 readily increased by division at the root. See 

 Acidtis, Acisanthera, Arthroslimma, Chceto- 

 gdslra, Osbickia, and Plerbma. 

 angustifblia . White . 7, H. Her. P. i N. Amer. 1812 

 cilidsa . . . Purple . 7, H. Her. P. 1 Carolina . 1812 

 hyperieoldes. Red . . 6, S. A. 1 Guiana . 1820 



mariana . . Purple . 7, H. Her. P. j N. Amer. 1759 

 rubella . . Pink. . 7, B. Her. P. S N". Amer. 1823 

 versicolor . Pink . . 9, S. Ev. S. i Brazil . 1825 

 virginica . . Purple . 7, H. Her. P. % N. Amer. 1759 



Rhinacanthus. See Juslicia. 



RhinanthAce^e. See ScrophulariAcece. 



Rhinanthus, Linn. From rhin, a snout, and 

 anlhos, a flower ; alluding to the appearance of 

 the corolla. Linn. 14, Or. 2, Nat. Or. Scro- 

 phulariacew. The seeds of the Yellow Battle 

 have only to be sown in a moist situation. 

 Synonymcs: 1, B. Alectordlophus, BUrtsia 

 Trixago, Trixago rhinanlhina. 



Alector61ophus Yellow 7, H. A. 1$ Europe . 1S20 



Crista-gffli . . Yellow 7, H. A. 1 Brit., mead, 



major . . . Yellow 7, H. A. 2 Brit. , corn fie. 



Trixago 1 . . Yellow 7, H. A. 1 Europe . 1800 



Rhinofetaltjm, Fischer. From rhin, nose, 

 petalon, petal ; base of upper sepal. Linn. 6, 

 Or. 1, Nat. Or. Liliaccm. For culture and 

 propagation, refer to the hardy species of 

 Lilium. 

 Karellni . Pa. pk. spt. . 1, H. Tu. P. J Ural . 1834 



Rhipidodendron, Willdenow. From rliipis, a 

 fan, and dendron, a tree ; in allusion to the 

 growth. Linn. 6, Or. 1, Nat. Or. Lilidcece. 

 This genus may be referred to Aloe for cul- 

 ture aud propagation. Synonymes: 1, R. dls- 

 tichum, Aloe plicalilis. 



plicatile 1 . Red . . 6, G. Ev. S. 8 Africa . . 1723 

 majus . . Bed . . 6, G. Ev. S. 10 Africa . . 1723 



Rhipidofteris, Schott. From rhipis, a fan, 

 and pteris, a fern ; fronds. Linn. 24, Or. 1, 

 Nat. Or. Polypodiacece. Stove ferns. Syno- 



nymes: 1, Polyoi'.rya peltMa ; 2, P. tri- 

 partita. 



bifurcata . . Brn. yel 3, S. Her. P. 2 W. Indies 

 freniculacea . Brn. yel. 3, S. Her. P. £ W. Indies 

 peltata 1 . . Brn. yel. 3, S. Her. P. J S. Amer. . 

 tripartita 2 . Brn. yeL 3, S. Her. P. I Brazil . . 



Rhipsams, Haworth. From rhips, a willow 

 branch ; in allusion to the flexible branches. 

 Linn. 12, Or. 1, Nat. Or. Cactacece. The 

 plants of this genus are more singular than 

 beautiful. A light vegetable soil, mixed with 

 a little brick rubbish, suits them best; and 

 they are readily increased by cuttings. Syno- 

 nymes: 1, Cactus pendula; 2, O. funalis ; o, 

 Genus alatus. 



RhizobolXce^, or Rhizobols. Trees of a 

 large size, supplying excellent ship timber. 

 The famous Suwarrow nuts are the produce of 

 Caryocar bulyrosum, and belong to this order. 



Rhiz6bolus. See Caryocar. 



Rhizoct6nia, - Be Candolle. From rhiza, a 

 root, and Meino, to destroy ; the name is 

 applied in consequence of its destroying the 

 roots upon which it grows. Linn. 24, Or. 9, 

 Nat. Or. Agarichcece. This species is found 

 on Colchicum and the roots of the Crocus — 

 Crocorum. 



Rhizoqens are a class of parasitical flowering 

 Fungi. To this class belong Rafflesia, Cyno- 

 mbrium, and other similar productions. 



Rhiz&ma, applied to root-like stems which spread 

 under ground, similar to those of the Iris. 



RhizomoRPHA, Roth. From rhiza, a root, arid 

 morphe, form ; the appearance of the plants. 

 Linn. 24, Or. 9, Nat. Or. Botrytacecs. The 

 species of this genus are found beneath bark , 

 and in cellars — divirgens, medullars, subcorli- 

 calis, subterranca. 



Rhiz<5piiora, Linn. From rhiza, a root, and 

 phoreo, to bear ; the branches of this tree 

 throw out roots very freely, which descend 

 into the mud ; consequently, every branch 

 being supported by its own roots, one tree 

 may, in this manner, extend over a consider- 

 able space. Linn. 11, Or. 1, Nat. Or. Rhi- 

 zophoracece. The Mangrove may be tried in 

 loam and sand, well mixed, and kept moist 



. by the frequent application of salted water. 

 It is difficult, if not altogether impossible, to 

 cultivate it in this country. 

 Mangle . . Pa. yel. . 6, 8. Ev. T. 10 E. Indies 1820 



RhizophorAce^:, or Mangroves. Trees and 

 shrubs, natives of the sea-shores in the tropics, 

 where they root in the mud, and form close 

 thickets down to the verge of the ocean. 



