November 6, 1895.] 



Garden and Forest. 



443 



Abies Numidica. 



" pectinafa. 



" Pinsapo. 



" " giauca. 



" Sachalinensis. 

 Sibirica. 



" subalpina. 

 Veitchii. 



" umbellata. 



" Eichleri. 



Picea Ajanensis aurea. 



" " alba. 



" " ccerulea. 



" Alcoquiana. 



" Engelmanni. 



" " giauca. 



" " argentea. 



" e.xcelsa. 



" " eremita. 



" " Cranstoni. 



" " aurea. 



" " compacta nana. 



" " " pyra- 



midalis. 



" excelsa compacta inverta. 



" " " Remonti. 



" " Finedonensis. 



'■ Jezoensis. 



" pungens. 



" nigra. 



" " doumetii. 



" obovata. 



" " Japonica. 



" orien talis. 



" polita. 



" Schrenkiana. 



" rubra. 



" Khutrovv. 



" Morinda. 



" orientalis aurea. 



" acicularis. 



" Omorika. 



" Glehni. 



" Dicksonii. 



" Sitchensis. 



Larix Europsea. 



" Japonica. 



" leptolepsis. 



" microcarpa. 



" Ksempferi. 

 Cedrus Libani. 



" Atlantica. 



" Deodara. 

 Pinus Austriaca. 



" contorta. 



" densiHora. 



" Laricio. 



" " striata. 



" " Calabrica. 



" Thunbergii. 



" nionophylla. 



" Fremontiana. 



" montana. 



" uncinata. 



" Pumilio. 



" Pinaster. 



" Brutia. 



" Pyrenaica. 



" sylvestris. 



" resinosa. 



" Jeffreyi. 



" ponderosa. 



" Benthamiana. 



'■ rigida. 



" serotina. 



" mitis. 



" Tceda. 



" Cembra. 



" " Sibirica. 



" " pumila. 



" Strobus. 



" Koraiensis. 



" Sabiniana. 



'■ Balfouriana. 



Pinus Balfouriana.var.aristata. 

 " muricata. 

 " Lambertiana. 

 " Bolanderi. 

 " Coulleri. 

 " niaerscarpa. 

 " excelsa. 

 " Monticola. 

 " tuberculata. 

 " Peuces. 

 Sciadopitys verticillata. 

 Sequoia giganlea. 

 Cupressus intertexta. 

 " Lawsoniana. 



" " alba. 



" Nutkaensis. 



" thyoides. 



Retinospora ericoides. 

 " obtusa. 



" pisifera. 



" squarrosa. 



Thuya gigantea. 

 " occidentalis. 

 " " Hoveyi. 



pendula. 

 " Japonica. 

 " Wareana. 

 " Vervseneana. 

 " Bodmeri. 

 " gigantea aurea. 

 " " Standishi. 



" Spathi. 

 Thuiopsis dolabrata. 



" " robusta. 



Librocedrus decurrens. 

 Juniperus communis. 

 " Virginiana. 



" " pendula. 



" " variegata. 



" " albo spica. 



" " giauca. 



" " aurea spica. 



" Japonica aurea. 



Schotti. 

 " drupacea. 



" elegans. 



" cinerascens. 



" sabina. 



" communisaurea var. 

 " Oxycedrus. 



" Chinensis. 



" pyramidalis. 



Tsuga Mertensiana. 

 " Brunoniana. 

 " Canadensis. 

 " Pattoniana. 

 " Sieboldii. 

 " Caroliniana. 

 Pseudotsuga Douglasii. 

 " pendula. 



" argentea. 



" giauca. 



" Schovenhorst 



seedling. 

 Athrotaxis Doniana. 

 " laxifolia. 



" selaginoides. 



Araucaria imbricata. 

 Cryptomeria Japonica. 



" argentea. 



" falcata. 



" variegata. 



" compacta. 



" elegans. 



Taxus baccata. 



" " pendula aurea. 



" " pyramidalis. 



" cuspidata. 

 Widdringtonia cupressoides. 

 Cephalotaxus Fortunei. 

 Torreya Myristica. 



" Californica. 

 Biota Japonica filiformis 



erecta. 

 Cunnincjhamia Sinensis. 



In one of his pamphlets Mr. Schober furnishes an inter- 

 esting catalogue of plants that are not winlerhaard, and 

 were much injured or entirely killed by the winter of 1881 : 



Cephalotaxus drupacea. 



Different varieties of Cupres- 

 sus. 



Frenela australis. 



Pinus densiHora. 

 " Fremontiana. 

 " ovatia. 



Sequoia sempervirens. 

 Torreya nucifera. 



" myristica. 



" erandis. 



Abies bifida. 

 " firma. 



Pindrow. 

 " acutissima. 

 " Japonica. 

 Araucaria imbricata. 

 Arthrotaxis selaginoides. 

 " cupressioides. 



" Guineana. 



Biota orientalis. 

 Cephalotaxus pedunculata. 

 " Fortunei. 



There are several separate plantations of these trees at 

 Schovenhorst, and no two of them seem to be of pre- 

 cisely the same age. The first planting dates back to 

 1848. The rule universally observed in groves of Scotch 

 Pines, of putting the trees in straight lines at very 

 small distances from each other (from three to si.x feet 

 apart), has been adhered to by Mr. Schober. This close 

 planting forces the growth upward, and leaves no room for 

 lateral expansion, except where an extra-vigorous tree 

 crowds away its neighbor and seizes the space for itself. 

 Every two or three years the trees are measured and the 

 measurements recorded. The circumference of each tree 

 is taken at one metre above the ground, and its total height 

 in metres is put down, showing how much it has grown 

 since the last previous measurement. According to the 

 measurements recorded for 1892, the tallest tree, an Abies 

 pectinata, had then reached the height of nineteen metres, 

 or sixty-two feet four inches, and its circumference was 1.25 

 metres, or four feet and one and a quarter inches. Next to 

 this was a Pseudotsuga Douglasii of 18.50 metres height 

 and 1.48 metres circumference. I savi' no record of the 

 later measurements. 



But rapidity of growth and ability to resist the climate 

 do not constitute the final test. The last point of all- 

 to be determined will be the quality of the wood. For 

 this purpose trees of each kind will be cut down, and 

 when the specimens of the wood are dried, they wnW 

 be scientifically e.xamined to determine their strength, 

 their power of resistance, their durability and their relative 

 value as fuel. In order to arrive at this final solution of 

 the problem which Mr. Schober has in view, it is his esti- 

 mate that at least forty years more will be required ; and, 

 as he cannot expect to remain as long as that in this world, 

 he proposes to hand the establishment over to the Dutch 

 Government on its promising to take care of the plantations, ' 

 and to see that the enterprise is carried to its full conclusion. 



I was there too short a time to form any opinion as to 

 the comparative prosperity of the different species of trees ; 

 yet it was impossible not to see that one of the most thrifty 

 kinds was the Douglas Fir. That variety of the Picea pun- 

 gens known as the Menziesii Parryana was likewise very 

 vigorous and promising. I noticed also that none of the 

 Pine family and none of theTsugas seemed to be equal to 

 those two in growth or beauty. Most of the Japanese 

 conifers wore a discouraging appearance, e.xcept, perhaps, 

 the Picea polita. But I left Schovenhorst with intense 

 admiration for the zeal, the devotion, the scientific knowl- 

 edge and the indomitable patience of its owner. 

 New York. C. A. Dana. 



s Entomological. 

 The Columbine Leaf-miner, Phytomj'za Aquilegias. 



BOTH last season and this all the Columbine-plants on 

 our grounds were greatly injured and rendered very 

 unsightly by the depredations of this small insect. The 

 adult of this Phytomyza is a two-winged fiy. It deposits 

 the e.g^ either on or inside of the leaf early in the season ; 

 this soon hatches, and the young larva at once begins 

 mining inside the leaf. This year plants showed the attack 



