VAL 



577 



VAW 



eriochrpa, exscapa, gibbdsa/, grdcilw, mixta, 

 Morisbnii 1, muricata, oxyrhtfncha, plagio- 

 stiphana, platyloba, pumila 2, radiata, rotata, 

 sclerocarpa, Szoviisiana, uncinata, vesicaria* 



Vallaris, Brown. From vallo, to inclose ; 

 used for fences in Java. Linn. 5, Or. 1, Wat. 

 Or. Apocynacecs. This species grows well in 

 sandy loam and peat, and is increased by cut- 

 tings, in sand, under- a glass, in heat- Syno- 

 nyme : 1, Pergnlaria glabra. 

 perguiaria 1 . White . 6, S. Ev. Tw. 10 B. Ind. 1818 



Vallesia, Ruiz and Pavon. In honour of F. 

 Vallesio, physician to Philip II. of Spain. 

 Linn. 5, Or. 1, Nat. Or. Apocynacece. For 

 culture and propagation, see Vdllaris. 

 cymbifdlia .White . 6, S. Ev. S. 3 N. Spain . 1821 



1 dichdtoma . White . 5, B. Ev. S: 3 Peru . .1822 



Valley of Death tree. See Antidris toxi- 

 caria. 



"V allisneuia, Micheli. In honour of Antonio 

 Vallisneri, an Italian botanist. Linn. 22, Or. 

 2, Hat. Or. Hydrocharidacece. This aquatic 

 plant requires to be grown in a large pot or 

 tub of water, in the corfservatory or green- 

 house ; it should be planted deeply in the 

 water, since it grows at the bottom of ditches 

 in its native country, 

 spiralis . . Brown . 7, G. Aq. P. floa. S. Eur. 1818 



VALLiSNERlAOEffl. See ffydrocharidacece. 

 Vall6ta, Herbert. In honour of Pierre Vallot, 

 a French botanist. Linn. 6, Or. 1, Nat. Or. 

 Amaryllidacece, For culture and propagation, 

 see Amaryllis. Synonyme ; 1, Amaryllis pur- 

 purea. 



purpilrea 1 . Scarlet 5, G. BI. E. H C. G. H. . 1774 

 major . . Scarlet 5, G. Bl. P. 1* C. G. H. . 1774 

 minor . Scarlet 5, G. Bl. P. 1 C. G. H. . 1774 



Valoradia, Soclist- Origin of name unknown. 

 Linn. 5, Or. 1, Nat. Or. Plumbaginacece. The 



' only species introduced is suitable for bedding 

 out in the flower-garden in. summer, requiring 

 only the most common treatment, and easily 

 increased by division, of the roots. Synonymes: 

 1, Plumbago Larpintce,. Ceralosllgma plumbagi- 

 notdes. 

 plumbaginoldes 1 . Blue 6, F. Her. P. J China . 1845 



ValVjEFORM, shaped as a valve. 



Valvate, opening like a valve. 



Valves, the divisions of the capsule. 



Valvular, consisting of valves. 



Valvular-dissepiments, partitions in the cen- 

 tre of the valves. 



VXnda, R. Brown. Vanda is the Sanscrit 

 name of the original species of this genus. 

 Linn. 20, Or. 1, Nat. Or. Orchiddceoe. The 



' species of this genus, as well as those elegant 

 and interesting plants referred to it for culture, 

 4c, are all well deserving of the cultivator's 

 best care and attention. The beauty of their 

 deliciously-fragrant flowers is quite suflicient 



' to recommend them to all lovers of orchidace- 

 ous plants, besides their being in general such 

 admirably free flowerers. Some of the species 

 of Saccolabium and Sarcdnthus produce from 

 thirty to one hundred spikes of flowers each ; 

 indeed, we know from the best authority, that 



there are single plants of Saccolabium gutta- 

 turn, growing upon trees in the Botanic Gar- 

 den, Calcutta, which produce every year from 

 fifty to one hundred' spikes of flowers. In 

 their native districts, all, or the greater part of 

 the plants referred to this genus, grow upon 

 trees in dense forests, and consequently derive 

 their chief support from the atmosphere ; 

 therefore their cultivation in this country is 

 rendered very simple and easy, as the- greater 

 part of them require nothing more than a 

 piece of wood to attach themselves to, or an 

 ornamental wire basket filled with moss and 

 broken pots, and suspended from the pillars or 

 roof of the house. There are, however, excep- 

 tions to this rule ; as, for instance, some of the 

 stronger and more robust-growing kinds;, such 

 as Vdnda Soxb&rghii and V. mvMifiara; which 

 should be grown in wide shallow pots, care- 

 fully filled with cut sphagnum moss, and pot- 

 sherds broken small. We would recommend 

 oak branches for those intended to be grown 

 upon wood. They all require a- good 1 strong 

 moist heat, and a plentiful supply of water 

 during the growing season, which ought to 

 commence about the beginning or middle of 

 June, and continue to the end of September, 

 from which time they should be kept cool and 

 dry until the beginning of March, when they 

 should be placed in a strong dry heat to induce 

 them to flower. They will, if thus treated, 

 flower most abundantly ; whereas, if kept in a 

 continued moist atmosphere, they will do 

 nothing but grow from year to year, and of 

 course never produce flowers, because they are 

 not allowed. a> proper season to elaborate and 

 perfect their flower-buds, neither have they a 

 proper season for the development of those, 

 ouds. Propagation is effected by carefully 

 detaching the lateral shoots after they -have 

 grown to the length of about six inches, and 

 fastening them to another block of wood in a 

 similar manner to the old ones ; but great 

 caution is necessary to preserve them from 

 excision by moisture till they have recovered 

 from the effects of being severed from tha 

 parent plant, and commenced growing. Syno- 

 nymes: 1, V. lissoehiloldesi Fieldia lissochilQ* 

 ides; 2, V. Roxb&rghii umiealor, Angrceeum 

 firowm, JEpid6ndrumf&vrum,.Cymbidium fi&r- 

 vum; 3, Cymbidiym tessellatum ; 4> Tricho- 

 rlza teretifblia; 5, V. suaveolens ; 6, Sacaola- 

 bium gigantema; t, Epictendrum spatuMfaim, 

 Limodbrum spatulatum, jwrides maculatum; 8, 

 Saccolabium papiUswm, Thalia maraydtra, 

 Cymbidium prcembrsum, brides prcembrsum, 

 E. wndulatum. See Sarcdnthus and- Jtridcs. 



