JUNE 21, 1900. 



The Weekly Florists' Review. 



101 



View in Store and Conservatory of Thomas F. Galvin, Boston, Mass. 



Erected by Lord ^: Burnham Co., New Vork. 



the punctures of aphides increases in 

 proportion to the rapidity of growth 

 of the leaf and the susceptibility of 

 the plant, and also depends to some 

 extent on the genus and the species of 

 insect which makes the puncture. It 

 is believed that the insect injects 

 some irritating substance of an acid 

 or enzymic nature into the wound, 

 that this substance causes the in- 

 crease of oxidizing enzyms in the 

 cells which it reaches, and that these 

 enzyms interfere with the nutrition 

 of the cell by destroying the chloro- 

 phyll and setting up other changes 

 which finally result in death. 



(12) Besides the carnation and 

 different species of Dianthus, many 

 other plants react similarly to the 

 puncture of aphides and other sucking 

 insects, and also to mites. 



(13) The grower can successfully 

 combat this disease by the proper se- 

 lection of cuttings; careful i)ropaga- 

 tion of stock; good soil; the proper 

 amount of moifture, light, and air; 

 and by the reduction of aphides, 

 thrips, and x'ed spiders to a minimum. 



ALLAMANDAS. 



Editor Florists' Review; — In a re- 

 cent issue of your valuable paper was 

 an interesting article on allamandas. 

 The writer says: "Most of the species 

 bloom in June and July." Also; "In 

 our hot summers they require shade 

 from the hot sun." This may apply 

 to the greenhouse culture of these 

 plants, but here in South Florida we 

 have Allamanda Hendersonii growing 

 in the poorest of white sand in the 

 open ground where it receives the 

 hottest of sunshine and no water but 

 that given by the "Great Rain 

 Maker." 



The plants are five and six feet 

 high, only two years old, and a mass 

 of rich dark green foliage, shining as 

 if varnished, and covered with their 

 grand golden flowers the whole year; 

 not a day but great branches of its 

 flowers can be cut. 



Allamanda neriifolia makes a fine 

 shrul) and does equally as well, being 

 always in bloom. Allamanda Will- 

 iamsii does even better in the sun 

 than in the shade. 



Alocasias also thrive in our hottest 

 sun, requiring no shade, only water 

 and rich soil, making grand plants 

 and producing a great many offsets. 

 Acacias grow wild, making fine trees 

 in two years from seed, and there are 

 several varieties found growing in the 

 hummocks. South Florida has a cli- 

 mate which produces wonders in flori- 

 culture. PALMETTO. 



Miami, Fla. 



AMPELOPIS VARIEGATA. 



We have received from Messrs. A. & 

 G. Rosbach. Pemberton, N. J., a sam- 

 ple plant of Ampelopsis variegata, to 

 which they give the common name of 

 "Variegated Grape." The variegation 

 is very strongly marked and, though 

 the foliage is much smaller than that 

 of the grape, the form is similar 

 enough to warrant the title. 



The Messrs. Rosbach write that 

 while not new, it is one of those neg- 

 lected old things that should be better 

 known and appreciated. They find it 

 one of the most useful and salable 

 plants they handle. 



