312 



Garden and Forest. 



[Number 175. 



In reply to an inquiry from a correspondent, whose address 

 has been mislaid, we would say that the parts of Hooker's 

 " Icones Plantarum" cost four shillings each, and can be ob- 

 tained from Williams & Nordgate, 14 Henrietta Street, Covent 

 Garden, London. 



The Los Gatos (California) Mail is authority for the state- 

 ment that the manufacture of perfumes has begun in that 

 town. One woman has a Rose-plantation of some sixteen acres 

 in extent, besides Orange-trees, Acacias, Rose Geraniums and 

 other plants bearing sweet-scented flowers. 



The Hazel is not regarded in this country as a very valuable 

 nut-bearing tree, and we doubt whether it is cultivated to any 

 great extent. But it is more esteemed in Germany, as is 

 shown by a pamphlet recently published at Berlin, in which 

 the best methods of cultivating the Hazel are explained and a 

 list of " eighteen chief varieties" is given. 



An idea of the beauty and value of the new Japanese Lilac, 

 Syringa Japonica, can be obtained from the fact that there 

 is now a specimen in Mr. William B. Bacon's garden in 

 Jamaica Plains, a suburb of Boston, only fourteen feet high, 

 bearing one hundred and thirty clusters of flowers, many of 

 them being from two to three feet long and eighteen inches 

 or two feet broad. 



The officer appointed by the State Board of Horticulture of 

 California has seized 375,000 Orange-trees, just imported from 

 Tahiti, because they are infested with different varieties of 

 scale insects. They were intended for San Bernardino County, 

 and if permitted to enter without being properly fumigated 

 these insects would have spread throughout the choicest 

 orange district in southern California. 



The June issue of Le Journal des Orchidees contains an 

 interesting and sympathetic notice of the late Paul Emile de 

 Puydt, the distinguished Belgian writer upon horticulture, who 

 died on the 20th of May last. He was a constant contributor 

 to the horticultural press, and in i860 published his Traite de 

 la Culture de Plantes de Serre Froide. This was followed six- 

 years later by Les Plantes de Serre, and in 1880 by Les Or- 

 chidees, a work full of valuable information. 



Among the newly introduced or still unfamiliar American 

 plants recommended in the May number of the Illustrirte 

 Gartenzeitung of Vienna are a brilliant orange-colored Coleus, 

 Prince of Orange, which is declared to be the most splendid 

 open-air sort yet grown ; Nott's Excelsior Pea ; the Remotant 

 Pink American Flag ; Rhododendron occidentale, from the 

 Sierra Nevada Mountains ; R. Vaseyi, of the Alleghenys, and 

 the smaller and rarer R. macrophyllum, which is more com- 

 monly called, in Germany, R. IVashingtoni; Wistaria Chinen- 

 sis floro albo, a Chinese plant, but introduced into Germany by 

 an American firm ; four new Roses, Souvenir of Beauvoir 

 House, Miss Winnie Davis, Miss Mildred Lee and Flor- 

 Field (?) ; Hibiscus Calif omicus, and the Idaho Pear. 



Monsieur Franchet describes and figures in the mid-June issue 

 of the Revue Horticole his J asminum polyanthum, discovered 

 in 1883 by the Abbe Delavay growing in hedges in the neigh- 

 borhood of Tarpin-tze", a small town of Yun-nan, in China. 

 This beautiful species, which Monsieur Franchet suggests will 

 flourish in southern France, and possibly in regions of severer 

 climates, is related to the well-known J asminum grandifloriun. 

 Its leaves, however, are much larger than those of that spe- 

 cies, and of a different form, and the calyx-teeth are longer. It 

 is remarkable in the great quantity of flowers which it pro- 

 duces in its native country, for the plant is not yet known in 

 cultivation. The flowers are of a bright rosy flesh-color on 

 the exterior and snowy white on the interior, and are pos- 

 sessed of the delightful perfume found in many species of the 

 genus. 



In his " Flora of New Bedford and the Shores of Buzzard's 

 Bay," Mr. E. W. Harvey remarks that the favorite color of 

 nature in that region is yellow in its different tints and combi- 

 nations. In a number of species there are as many of a white 

 or whitish color, but these are for the most part diminutive 

 and inconspicuous. The various shades of yellow are more 

 noticeable in spring, owing to the size and abundance of the 

 flowers of a few common species, such as Buttercups, Dande- 

 lions, Potentillas, Calthas, etc., but there are really as many 

 white-flowered species, though the flowers are smaller. Reds 

 are not abundant at any time, but more common in the sum- 

 mer months. Purples are most frequent in August and Sep- 

 tember, when they rank next to the yellows, while the blues 

 are more rare than any other color, and flowers of this hue are 



small in size, with the exception of the Iris, Lupine, Chicory, 

 Aster, Pontederia and Gentian. The percentage of each color, 

 computed by the number of species, is as follows : White, 32 ', 

 yellow, including orange, 33 ; red and blue purples, 15 ; red, 

 including crimson, scarlet and rose, 12 ; blue, 7. 



Mr. E. S. Carman observed, on one of our recent hot days, 

 that the Rose-bugs invariably sought the shade. Several of 

 the beetles were then caught and placed in a. paper box ex- 

 posed to the sun. The thermometer in the box rose to no 

 degrees and the insects died. Hot water was then tried, and 

 it was found that the beetles were killed by water at a tem- 

 perature of 125 degrees. The experiment was then made of 

 heating water to 170 degrees and then spraying it upon 

 some Magnolia flowers which were covered with the Rose- 

 bugs. By the time the spray reached the insects it had 

 been reduced to a temperature of 120 degrees, and it killed 

 them without injuring the foliage or the flower. This experi- 

 ment indicates that we may have a cheap and practicable 

 check upon the ravages of this dreaded pest. It is plain that 

 the nozzles which divide the water into mist are not the best 

 for this purpose since the spray will hardly retain enough 

 heat to kill the insects. A nozzle which emits coarser 

 streams would be more effective, and it could be used at a 

 greater distance. It is hoped that a trial will be made of 

 this simple remedy wherever an opportunity offers. 



We have received from Mr. Samuel C. Moon, of the Morris- 

 ville Nursery in Morrisville, Bucks County, Pennsylvania, 

 flowering specimens of Magnolia Kobus, a Japanese species, 

 which produces flowers before the appearance of the leaves, 

 in early spring. Mr. Moon informs us that his specimen, 

 which is now twenty feet high, with a straight trunk, about six 

 inches in diameter, flowered for the first time in 1889, which 

 is probably the first time that this species has ever flowered 

 in the United States. It was planted by the late Mahlon Moon 

 about twenty years ago, and was obtained it is supposed from 

 Hovey & Co., of Boston, who had undoubtedly received it 

 from Thomas Hogg, who, about that time, introduced many 

 Japanese plants into the United States. The flowers of M. 

 Kobus are smaller than those of M. conspicua, but they are 

 pure white and very fragrant, and if the tree, with age, de- 

 velops a free-blooming habit, it will prove a desirable addi- 

 tion to our gardens, as it is one of the hardiest of all Magnolias, 

 perhaps the hardiest in eastern Massachusetts, where there 

 are now several specimens of this tree raised from seed sent 

 some years ago to the Arnold Arboretum from the northern 

 island of Japan. None of these plants, which are now twelve 

 or fifteen feet high, have yet flowered. M. Kobus was distrib- 

 uted in this "country under the name Magnolia Thurberi, an 

 unpublished nurseryman's name. 



In view of the fact that the Hop plant-louse has appeared in 

 alarming numbers in New York, Oregon and Washington, 

 Professor Riley has prepared a bulletin which explains the 

 main facts in its life-history and the remedies best known 

 against its ravages. Since it was discovered a few years ago 

 that the eggs of this insect were laid in the autumn on dif- 

 ferent varieties and species of the Plum, both wild and culti- 

 vated ; that from these eggs were hatched in early spring 

 stem-mothers of a dozen generations, and that the third gen- 

 eration of lice being winged desert the Plum-trees entirely and 

 settle upon the Hops for their summer's work, it has become 

 possible to devise an intelligent plan of attack. It is found : 



(1) That it will pay to spray the Plum-trees with some preven- 

 tive application either in the spring, before the lice migrate to 

 the Hops, or in the fall, after the lice have returned from the 

 Hop to the Plum and are making preparations to lay winter 

 eggs. The latter time is preferred, because in the fall the 

 Plum-trees will be less susceptible to the action of poison, and 

 stronger solutions can be applied without damage to the trees. 



(2) That all wild Plum-trees about the woods through the Hop- 

 growing country should be destroyed. (3) That Hop-vines 

 should be burned or drenched with a kerosene emulsion as 

 soon after the crop is harvested as possible in order to kill the 

 males. It is too late for preventive work of this sort this sea- 

 son, and the only thing now to be done is to spray the vines 

 with some insecticide to kill the lice already there. Fortu- 

 nately, the individual Hop-grower can be assured that his work 

 cannot be thwarted by the carelessness of his neighbors, be- 

 cause the summer lice are wingless, and can only migrate by 

 crawling from one yard to another. The bulletin goes on to 

 state that the best insecticides for Phorodon Humuli, so far as 

 known, are kerosene emulsions and fish-oil soaps. The proper 

 method of preparing these mixtures, and the description of the 

 best spraying apparatuses, have often been published, and they 

 are repeated, with illustrations, in this bulletin. 



