GRE 



273 



GRE 



this one house are contained illustra- as he proceeded towards the meridian, 

 tions of all the more important objects , the astragals and rafters formed a shade, 

 which are in the majority of cases to be ' and air being given, the plants survived 



attained in green-house building. 



and soon recovered ; in the lean-to 



" It should be added, that the upright house they blackened and perished." 

 sides of the house are glazed with panes 

 of sheet-glass, in one length ; and that 

 each of the roof sashes has but two panes 

 in its length ; this no doubt adds very 

 much to its beautiful appearance." — 

 Card. Chron. 



The plan given of the green-house at 

 Yester is a lean-to, but the same system TempletoniaTiauca. 

 ot heating is adaptable to a span-roofed , puHenea daphnoides. 

 house. This form is to be preferred on gtatice arborea 

 many accounts. Thus, as the practice pjineica decussata 

 is most injurious to have the tempera- | Oxylobium retusu'm. 

 ture of the hot-house too elevated dur- ; Loddigesia oxalidifolia 

 ing the night, so no less injurious, in 

 winter, is it to permit tender plants in 

 the green-house or elsewhere, which 

 may have been subjected to a freezing 

 temperature, to be suddenly exposed to 



GREEN-HOUSE PLANTS. 



DWARFS SUITABLE FOR BEDDING IN THE 

 HOUSE. 



Acacia armata. 

 Chorozema varium. 

 SoUya hcterophylla. 



Epacris grandiflora. 

 — impressa. 



Diosma rubra. 

 Eutaxia myrtifolia. 

 Eriostemon buxifolium. 

 Dilhvynia floribunda. 

 Boronia deiiticulata. 



CLIMBERS FOR THE BACK WALL. 



Corraa speciosa 

 Euchilus nbcordatum. 

 f . , -r. Hovea Celsi. 



a higher degree of heat. Experience chironia frutescens. 



has placed it beyond dispute that such 



plants should be shaded from the sun, 



and thus returned very slowly to a more 



genial temperature. So convinced by 



experiment of the importance of secur- ^ 



ing plants in greenhouses from sudden Genista canariensis. 



transitions is Mr. Macnab, the curator pQiyrjala oppositifolia 



of the Caledonian Horticultural Socie- Coleonema tenuifolia. 



ty's garden, that he has those structures Lambertia formosa. 



ranging north and south, and consequent- 

 ly with a western and eastern aspect. 



They have two aspects, because he has Clematis azurea grandiflora. 



them with span roofs, instead ofthe old Sieboldi. 



leaa-to form. For green-houses, but Cobosa scandens. 



not for forcing, there is no doubt that Maurandya Barclayana. 



this form is to be preferred ; and Mr. \ Kennedya Mactryaltac. 



M'Nab thus enumerates its advantages: ' 



" In a span-roofed house the circulation select plants for the shelves. 



of air may be constantly kept up so as i Boronia pinnata, serrulata, and anemo- 



effectually to prevent damp. For such a j nefolia. 



green-house fire heat is scarcely at all Polygala oppositifolia and cordifolia. 



required; for, if there be a free circu- Gardoquia Hookeri. 



lation of air during the autumn and Roelia ciliata, 



winter months, and if the tables and Hovea celsi and pungens. 



shelves be carefully kept dry and clean, Chorozema varium, 



water being sparingly given to such 



plants only as require it, cold, even 



descending to freezing occasionally the 



surface of the soil, will do less injury 



than the application of fire heat to most 



plants. In the case of plants frozen in 



a lean-to house, and others in a span- 

 roofed house extending north and south, 



the consequences were much the least I.uculia gratissima. 



injurious in the latter, for in it the in- Leschenaultia formosa and biloba. 



fluence of the sun was much less felt; Coleonema tenuifolia. 

 18 



Ilenchmanni. 

 Mirbelia floribunda. 

 Aphelexis humilus. 

 Pimelea spectabilis, 



hispida. 

 Bossicea linophylia. 

 Eutaxia myrtifolia. 

 Dilhvynia floribunda. 



Dicksoni, and 



decussata, and 



