242 The Botanical Gazette. [August, 
autumnalis, another fall flowering species, August to October. 
This habit points to an origin from spring flowering species; 
a case which otherwise would be doubtful since summer flow- 
ering species of Scilla are not rare. 
f the twenty-three well defined European species of Col- 
reason is that the meadows were covered with water during 
the fall. Among the fall species C. Bertolonii, C. pusillum, 
and the ill-characterized species, C. Steveni, develop the 
remaining twenty species develop the leaves first during the 
following spring. Now the habit of blossoming before the leaves 
develop is so common among spring flowering species, and se 
Same length at the time of flowering, October to November, but 
the latter continue growth after the flowering season. 2 
Bulbocodium and M. filifolia have the leaves still hidden in 
flowers before the leaves are well developed. 
pe ; 
Schott, in his revision of the genera of the Argiae a 
