Wanted. — Short notes of interest to the general bot- 

 anist are always in demand for this department. Our readers 

 are invited to make this the place of publication for their 

 botanical items. It should be noted that the magazine is is- 

 sued as soon as possible after the fifteenth of each month. 



Injured Sycamores. — In the 18th Report of the Mis- 

 souri Botanical Garden Hermann Von Schrenk reports that in 

 Missouri and various other parts of the country the young 

 leaves of the sycamore were killed by the severe frosts in the 

 spring of 1907. While it is not to be doubted that sycamore 

 leaves may occasionally be killed by frost, yet the fact remains 

 that some sort of fungus attacks the young leaves making it 

 a difficult matter, at first glance, to decide whether the injury 

 was caused by frost or fungus. 



Plant Distribution. — Every species inhabits the areas 

 which it has been able to reach and occupy from the starting 

 point of its place of origin. Neither its birth-place nor any of 

 the places within its range may offer the most suitable condi- 

 tions for the best growth and hig-hest development. Beyond 

 seas, over mountain ranges, across the equator or past other 

 equally effective barriers, may lie plains, valleys, plateaus and 

 even continents, where if once introduced it might overbear all 

 competition from the plants already there, extending its dis- 

 tribution a million-fold. Let the barriers be once passed and it 

 enters into a new kingdom as the various invasions of weeds 

 amply testify. The soil, the various factors of climate, the 

 course of the seasons and the actual composition of the plant 



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