ORCHID 



1165 



ioned method of hot water under natural circulation ^ 

 be found best, using the regulation 3>^-inch pipe, r 

 ning the flows along the back beneath the eaves and 

 turning along the floors beneath. See Fig. l.i'l, wh 



fresh lime is perhaps the best to use, as it is easily re- 

 moved in the fall. The flrst application in February 

 should be light, following it with a second coat a month 

 later, and, if necessary, a third one in July. This will 

 wear off gradually and in most cases should be entirely 

 removed during December. It is easily removed with a 

 stiff brush. There are also patouti-d shadiii-s. 



fairly illustrates a properly constructed house. The 

 quantity of pipe required for heating a house depends 

 upon the location and degree of heat desired. A slab or 

 board should be placed along the back of the side beds 

 to throw the heat against the eaves and protect the 

 |)lants from direct heat before it has assimilated with 

 the 111. II, tun- uf III,, house. 



The Nia\ liraiia.laii house should be a lean-to struc- 

 ture ..I ii.iiilii 1 II a..|ii.ct, wiih a wall of stone or brick 

 aloni; ili.. s,,.ii|i si. I., to protect it from solar influence as 

 nmch us possible (see Fig. 1572). The glass should be 

 protected by canvas roller shades raised 15 or 20 inches 

 above the glass on framework. One side of the canvas 

 should be tacked along the top of the house, and the 

 other to a round wooden roller 3 or 4 inches in diameter 

 and as long as convenient to draw up; the two ropes 

 should be fastened to the ridge, carried down beneath 

 the shade around the roller, and up over the top to a 

 single pulley near the ends; thence through a double 

 pulley in the center and down over the top of the shade 

 to the ground. By these ropes the shade can be raised 

 1 bright weather at will (see 

 I i.ipiiiL; similar to the other 



and lowered in cl 

 Pig. 1.573). Solid 

 Orchid house s , 

 flow and rctur.. 

 so that either . 

 Shading o( - 

 Orchid housa- 1 



■alves 



solid beds and methods of heating and shading 



and in some cases also during the winter niont 

 protect the plants from the sun. It may be eil 

 canvas, as in Fig. 1574, or consist of whitewash oi 

 applied directly to the glass. Whitewash made 



1574. Method of shadii 



Orchid houses. 



many cases require a special method of treatment for 

 individual plants of the same genus, as Habenaria for 

 example, where some are found growing in rich, turfy 

 loam exposed to sun, while others inhabit wooded, 

 swampy locations. 



Many species of terrestrial Orchids nearly or quite 

 defy successful treatinent under cnltivati.m 'from hick 



of knowledge reuar.liiia.- ili.' n tal...'\ ..i ih. n- tiaii\-o 



habitats, or from til.. [.I lilt - i. .l,.ii i , ...-laiNtic 



only in connection with tli.. m Ii.iiii..f ^|,i.ial fiiiii,'i, 



which may assist thciu in making jiropcr growth. 



The hardy species, where a general collection is 

 grown, should be cultivated in pots in coldframes, as 

 many need protecti. 

 shade which can I 

 Our native hardy -| 

 in a properly coni 

 so that each mav r. 



The m.n-o tr..... 

 diums sii-li a, 

 latua anl /' n 



AnsBCtoc.liilus, tropical Goodyeras and Cypripediums, 

 Spathoglottis, and several genera of like nature, re- 

 quire the same general treatment as epiphytal Orchids, 

 with temperature of the East Indian department at all 



Hli-tias, Catasetums, Cyrtopodiums, Oalauthos, many 

 Lycastes, tropical Liparis and Microstylis, Phaitts 

 Hiimhlolii and P. tuberosus, Thunias and many other 

 deciduous and semi-deciduous species, should be grown 

 in the East Indian, or warm end of the Brazilian de- 

 partment, and during the resting period should be placed 



i:^ the glass 

 t planted on 



