140 HORTICULTURAL SOCIETY OF NEW YORK. 



mate than the Indian species, although it grows at a lower gen- 

 eral altitude. 



In the genus Larix, as might be expected, Larix leptolepis, 

 from the mountains of northern Japan, is most satisfactory. 

 The severest winters we have had have not touched it. The com- 

 mon European larch, Larix decidua, and the American one, 

 Larix laricina, are, of course, hardy. Pseudolarix Ksempferi, of 

 China, has proved suited to the climate in this neighborhood. 

 As both Larix and Pseudolarix are deciduous, they are better 

 adapted to stand the alternate thawing and freezing they en- 

 counter here, for the transpiration surface is reduced to a mini- 

 mum. 



It is unfortunate that Cryptomeria Japonica is not hardy 

 here. We have tried it several times, and only once have we 

 found a single individual that would live at all, the others being 

 killed every winter. This plant has now been in the pinetum for 

 five or six years, is in a very sheltered place, and has managed 

 to survive ; it does not present the neat symmetrical appearance 

 it does in the conservatories. It has borne cones and even the 

 hard winter did not harm it more than usual. 



Sciadopitys verticillata, from the mountains of Japan, with- 

 stands the winters well, rarely if ever browning in any way. 

 Thujopsis dolabrata, as is the case with nearly all plants from 

 southern Japan, is not hardy here. Chamjecyparis pisifera, and 

 its numerous varieties, also from southern Japan, is a little ten- 

 der sometimes. Even here there is a great difference in in- 

 dividuals, some withstanding the winters better than others, 

 perhaps being derived originally from seed from more north- 

 ern localities. Chamaecyparis obtusa, and most of its varieties, 

 are about as hardy. 



None of the species of Cupressus are hardy. The members 

 of the genus Chamseecyparis from our northwestern country, 

 C, Nootkatensis and C. Lawsoniana, can only be grown in shel- 

 tered situations. Coming from a region where the annual pre- 

 cipitation is greater than it is here, our long dry spells seem to 

 militate against them. 



Among the cedars, Juniperus chinensis, J. nana, J. Sabina. 

 J. prostrata, and of course the native J. Virginiana, are per- 



