Vol. V. NOVEMBER, 1888. No. 41 



UNDESCRIBED VARIETIES OE CALOCHORTUS 



GUNNISONI 



There are three varieties of Calochortus Gunnisoni, Watson, 

 which I describe as follows: 



1. 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 710 purple band above 

 the gland. 



This Calochortus grows in moist but not wet soil-^they are 

 particular about this. 



T. D. A. Cockerel! 

 West 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 



