1887. | BOTANICAL GAZETTE. 165 
ing them; so that, while it takes away the ostensible object of the excur- 
sion, it leaves more time for the real one. It is to be hoped that this will 
be one of the largest and most memorable meetings of botanists we ever 
have had, and that the result of their meeting will be an additional stim- 
ulusto botanical work in all departments. 
OPEN LETTERS. 
Australian alpine plants. 
‘ 
t 
‘many species found there (in the Australian Alps), between 2; 
and 5,000 feet, have a wide range, recent researches in the flora of Mor- 
eco, in Africa, and on that of, Rurum Valley, Afghanistan, having dis- 
closed the ag ny of numerous species of plants common to the Aus- 
I anand arctic species in antarctic and squth temperate zones. 
t seems to me the character of the mountain flora also would find its ex- 
h AvuG. F. ForERSsTE. 
White and yellow poplars. 
While collecting specimens of our so-called poplars (Liriodendron 
i an intelligent and ob- 
Tvant farmer of Lincoln County (Geo. P. Bright) to the following ex- 
pia from the June (86) number of Drugs and Medicines of North 
Ky.), wh w 
€ appearance of the bark, we learn the following: ‘ The yellow poplar grows . 
