Vol. 45 No. 6 
BULLETIN 
OF THE 
TORREY BOTANICAL CLUB 
JUNE, 1910 
A carrier of the mosaic disease 
MakKOTO NISHIMURA 
(WITH PLATE 7) 
INTRODUCTION 
The symptoms and general character of the mosaic disease 
of tobacco and other solanaceous plants are becoming very well 
known through the work of Mayer (1886), Sturgis (1900), Woods 
(1899, 1902), Lowe (1900), Iwanowski (1903), Hunger (1905), 
Clinton (1908), Westerdijk (1910), Peters (1912), Allard (1914, 
1915, 1916, 1917), Chapman (1913, 1916), Jensen (1913), and 
Freiberg (1917). 
‘The disease has been observed on all varieties of Nicotiana 
Tabacum, on several of the more distinct varieties of tomato, on 
Petunia violacea, on Physalis (two distinct garden species), on 
Datura Stramonium and D. Tatula, on Hyoscyamus niger, On 
Solanum nigrum and S. carolinense and on several of the more 
distinct varieties of Capsicum. It has been transferred to all 
these from infected N. Tabacum. To this list should be added now 
Solanum aculeatissimum, the apple of Sodom, an infected plant of 
which was brought from Florida to the greenhouse of Columbia 
University in the winter of 1915. 
According to Allard (1914) the following symptoms are charac- 
teristic of different phases of the disease at one or another stage in 
the infection: (1) partial or complete chlorosis, (2) curling of the 
leaves, (3) dwarfing and distortion of the leaves, (4) blistered or 
[The BULLETIN for May (45: 167-218) was issued May 23, 1918.] 
219 
