474 



H O R T I C U L T U R E 



March 26, .1910 



flowering ai;il when in full bloom looks from tlie dis- 

 tance like a gxeen pyramid heavily flecked with snow. 

 On a dull day and in the evenings it is particularly con- 

 spicuous, standing out iu sliari> contrast from all its 

 neighbors in the woods and forests. 



Davidia is quite hardy in the Arnold Arboretum, 

 where it has stood out for several years now. In Mons 

 Vilmorin's garden, at Les Barres, France, where 

 three plants were raised from seeds sent there by a 

 missionary some years ago, it has flowered sev- 

 eral times, and last year fruited. In England 

 trees eight years old, raised from seed sent there 

 by the writer, are now upwards of 12 feet high, and 

 may be expected to flower before very long. 



This Davidia was the special object of the writei-'s 

 flrst journey to China, and upwards of thirteen thous- 

 and plants were raised from seed sent home. These 

 have now been distributed far and wide and in the near 

 future, when its merits are fully known, this tree will 

 probably be more generally in demand than any other 

 ornamental flowering tree. 



Populus lasiocarpa is a magnificent tree with the 

 largest and most handsome foliage of any of the family. 

 This new poplar is a denizen of moist woods and forestS; 

 where it forms a shapely tree 50-70 ft. high. The leaves 

 are broadly cordate, pointed, upwards of a foot in 

 length, and correspondingly broad. In adult trees the 

 foliage shows no mai-ked diminution in size. 



In China some forty odd species of Maple occur. 

 5Ianv of these arc now iu cultivation and show much 

 promise of being both hardy and ornamental. Then 

 we have many flowering trees belonging to Eosaceae 

 and other families; new Magnolias, Oaks, Ashes, Wal- 

 nuts, Chestnuts, Birches, Beeches. Hornbeam, Willows. 

 etc., etc. There will be no dearth of new trees for many 

 years to come, and, in all earnestness, those interested 

 will do well to visit the Arnold Arboretum more fre- 

 quently in the near future than maybe they have done 

 in the past. With a hearty au revoir to Horticulture 

 and its readers the writer now lays down his pen and 

 takes up his traveling kit, bound once more for the back 

 blocks of Far Cathay. 



^^€^-*^-v^ 



Our readers will, uo doubt, part reluctantly with our 

 distinguished correspondent and we shall all keenly miss 

 his Interesting and instructive weekly letters. 



It is with much pleasure, therefore, that we are en- 

 abled to announce that Mr. Wilson will not be entirely lost 

 to the readers of HORTICULTURE while absent, as it has 

 been arranged, with the cordial approval of Prof. Sargent, 

 that such notes of new discovery and incidents of interest 

 to horticultural readers as may come from the explorer, 

 will appear in HORTICITLTURE from time to time as re- 

 ceived. — Ed. 



Important 



Intending exhibitors are reminded that the rules 

 relating to the great orchid show which is to be held in 

 Boston during the last week in May, require that all 

 entries in the competitive classes shall be made previous 

 to April 1. There are only four days left for those who 

 have not already made entry in which to do so in compli- 

 ance with the rules. 



Trans-Atlantic Notes 



A HAEDT COMPETITOR IN CARNATIONS 



A variety of the hardy out of doors carnation has at 

 length been raised in the Swiss canton Graubunden by 

 Mr. H. Spengler-Aibli, a florist at Chur, who has for 

 many years been engaged in the improvement of carna- 

 tions, and more particularly with the intent of obtaining 

 a perfectly hardy race. His latest achievement is the 

 variety Ruhm von Chur, whiclihas flowers of gigantic 

 dimensions, the perfection of slJlipe and coloring, and of 

 fine quality as a cut flower, and quite the equal of the 

 ^Vmerican carnation, according to M. Thos. Schweizer of 

 Zurich, who has an article about it in the "Gartenwelt"' 

 for March 5, last. 



Graubunden, and the Engadine, have been famous 

 for carnation culture for generations, and their produc- 

 tions have been the wonder of the many foreign visitors 

 to these parts of Switzerland. The plants are quite at 

 home in tlie mountain air of the place, and may be 

 • gi'own in the valleys likewise, with considerable success, 

 and far beyond the Swiss frontiers. The variety Ruhut 

 von Chur has been gi'own in the open air for five win- 

 ters without protection of any sort, at Chur, by the 

 Zurich See and in southern Germany : and has estab- 

 lished its reputation for complete hardiness. The bloom 

 is of a light rose pink, has a fine shape, is borne on a 

 stout stalk 18 to 24 inches high and needs no support. 

 The flower opens well even in bad weather. A second 

 harvest of flowers is obtained in the autumn. 



.JUBILEE BULB SHOW AT HAARLEM 



This show- that is organized liy the General Bulb 

 Growers' Society of Haarlem will be opened to the pub- 

 lic by H. E. H. Prince Henry of the Netherlands on 

 March 25. A building has been erected for plants and 

 flowers; but owing to the available area liaving been 

 planted in the autumn with bulbs, no other buildings can 

 be erected. The exhibition will offer attractions from 

 the time of opening to the finish at the end of May. The 

 international jury will assemble in March and April, 

 under the presidency of Mr. de Marez Oyens, ex-min- 

 ister of coumierce, and present President of the Neth- 

 erlands Federation of Horticultural Societies. 



CISSUS NJEGERRE 



There is figured in the "Gartenwelt" for February 19 

 of the present year, a species of wild vine under the 

 name given above. According to H. Strauss of Dahlem 

 Botanical Garden, Berlin, ripe seeds of this plant were 

 gathered in 1903 by Privy Councillor Engler, director of 

 Dahlem, near Amani in German East Africa, where, in 

 the primeval forests it is widely distributed, growing to 

 the tops of the tallest trees, and hanging in beautiful 

 festoons. The seeds vegetated at Dahlem and many of 

 the plants have been raised at that place and are grow- 

 ing luxuriantly. The plant resembles C. adenopodus 

 (Sprague) from Uganda very closely, but from which it 

 chiefly differs in the hairy flowers; and from C. Buchan- 

 anii (Planch) from the Zambesi region, in the ternate- 



