235 
This variety is cultivated in Japan, and may possibly be indi- 
genous there. It differs from typical amurense mainly in the 
nature of the bark, so that it is hardly possible to recognise it 
from herbarium specimens unaccompanied by notes or samples of 
bark. Sargent records P. sachalinense from Szechuan Wilson. 
ii. p. 136). The writer has not seen the specimens cited 
var. Lavallei, Sprague.—P. Lavallei, Dode in Bull. Boe. Bot. 
France, ve p- 648 (1909). 
strib. Japan: Province of Nambu, in subalpine woods, 
Dis 
1865, Tschonoskt. 
. japo nicum, Mazim. in Bull. Acad. Pétersb. xvi. p. 212 
sii); ML Biol. viii. p. 1; Franch. “se Sav. Enum. Pl. Jap. i. p. 
73; Matsum. Ind. Pl. Jap. ii. pars 2, p. 293; Hayata, Veg. Mt. 
Fuji, p. 75; Schneider, Ill. Handb. laubieaks ii. p. 125; Bean, 
Trees and Shrubs, li. p. 
strib. Japan: Fujiyama, in the deciduous broad-leaved 
tree-region. 
According to Matsumura, P. japonicum is confined to Fuji- 
yama. Sargent, Trees and Shrubs, i. p. 201, cited under P. 
japonicum, Tschonoski’s specimen from Nambu, which the writer 
aie to P. amurense, var. Lavallei; and Henry’s no. 4003, from 
Hupeh, which is P. chinense, Schneider, as he himself subse- 
aie recognised (PI. Wilson ii. Pp: 137). 
Pritzel recorded the occurrence of P. japonicum in — 
China, which is highly improbable (Engl. Jahrb. xxix. p. 42 
3. P. chinense, Schneider, Ill. Handb. Laubholzk. ii. P: 126 
(1907); Sarg. Pl. Wilson. ii. p. 136; Bean, Trees a nd Shrubs, 11. 
31. P. sinense, Dode in Bull. Soc. Bot. France, lv. p- 649 
p- : 
(1909). P. amurense, E. Pritzel in Engl. Jahrb. xxix. p. 424, 
pr: 
Distrib. China: Hupeh, Wilson 1972, 2739; Patung District, 
Henry 4003, 5202. 
XXXV.—ON TWO SPECIES OF OVULARIOPSIS 
FROM THE WEST INDIES. 
E. M. WAKEFIELD. 
Since 1906 lists of fungus diseases of plants in the West Indies 
have contained references to a mildew on cotton, which has been 
called, for the sake of distinction, the ° ‘West Indian Leaf 
Mildew ” of cotton, as it was apparently un nknown from any other 
part of the world.* In the West Indian = eg 1916, p. 118, 
the disease was briefly described as follow 
The disease occurs on both nreity sti cultivated cotton. 
Leaves attacked by the fungus turn yellow or red in irregular 
*It may be noted, however, that Dr. Butler in his book “Fungi and 
Disease in Plants,” p. ~ has reco the oceasional occurrence of & 
similar disease in Bomba 
