12 Joint Bili.kti.x 7 



new station for Cypripedium arietinum in a section of the town where 

 it has never been found before, and I am convinced that Habcnaria 

 clavellata is much more common in eastern Vermont than has pre- 

 viously been supposed. 



The development of stations for three species of Centaurca on the 

 farm of John P. C. Stark, of St. Johnsbury Center, is a most curious 

 circumstance. I have carefully investigated this locality, and found 

 growing but a few rods apart a large patch each of Centaurea Jacea var. 

 lacera, Centaurea nigra var. racliata. Centaurea americana. These 

 plants have appeared within two or three years in old grassland that 

 has not been reseeded in many years. 



The season of 1920 was the 'best yet" from my point of view. 

 Eight hundred three species of local flowering plants and ferns and 23 

 of mosses and lichens were shown at the Museum. 



RESULT OF FINDING AN UNKNOWN COCOON 



Evaline Darling Morgan 



One day, in the late fall of 191G, while clearing up my garden, I 

 overturned an old board and discovered an unknown cocoon fastened 

 securely to its underside. Curiosity prompted me to pick it off for 

 examination, and in so doing I discovered that the larva not only had 

 hollowed out a smooth groove in the board of the shape and size to fit 

 the pupa, but had incorporated the shavings, or bits of wood, with its 

 silk to form the inner layer of the cocoon. The outside layer was en- 

 tirely distinct from the inner, and of an even weave and color, not 

 unlike that of many cocoons. 



I was thrilled by the work of this unknown artisan. Gardening 

 and all its demands were immediately deserted for the perusal of 

 books that might give an answer to my urgent question, "What can- 

 it be?" Many hours were spent in search for the answer, but without 

 results. Then I wrote to the entomological department of the Univer- 

 sity of Vermont, and to several authorities on such matters, but all 

 reported "never heard of it." 



That year I had a class of girls who had been studying moths and 

 butterflies and making collections of their larvae to be placed in an 

 improvised hatchery to await results the following spring, so it was 



