THe West American Screntist’ 
VOL. V. NOVEMBER, 1888. No. 41 
UNDESCRIBED VARIETIES OF CALOCHORTUS 
GUNNISONI 
There are three varieties of Calochortus Gunnisoni, Watson, 
which I describe as follows: 
tr. Var. imaculatus. A dark purple subquadrangular spot of 
some size on the inside of each petal beneath the gland. Petals, 
pale violet externally, greenish toward base. A purple band 
above the gland. 
2. Var.immaculatus. The dark purple infraglandalar spots 
absent. Petals not so violet externally. A purple band above 
the gland. 
3. Var. purus. Like the last, but with 20 purple band above 
the gland. 
This Calochortus grows in moist but not wet soil—they are 
particular about this. 
T. D. A. Cockerell. 
WEstT CLIFF, CUSTER Co., COLORADO. 
THE COLORADO BIOLOGICAL ASSOCIATION. 
This association has been formed for the purpose of investigat- 
ing, in a detailed and systematic way, the Fauna and Flora of 
Colorado, both recent and fossil, and recording the results in such 
form as to be a permanent contribution to our knowledge of the 
Biology of the State. It was commenced early in 1887. as the 
** Colorado Ornithological Association,’’ and while so known did 
good work under the leadership of Mr. Chas. F. Morrison, at the 
Ornithology of Colorado, resulting in a list of about 350 species 
and sub-species occurring within the State limits, which is now 
ready for publication. Now that the scope of the Association is 
widened, still better results are hoped for, as it is accordingly 
proposed to issue from time to time special bulletins on the fauna 
and flora of the State, which will be sent free to all members. 
There will also be an annual report, which will include a complete 
bibliography of the State for the year. Meetings will be held as 
often as possible, and it may be possible in the future to 
