118 American Fern Journal 



Of these forms, 0. cinnamomea (typical) is common in 

 Vermont; f. incisa I have seen from several station; f. 

 bipinnatifida, which I collected in a pasture in Williston 

 seems to be new to the state; f. latipinnula is so far 

 known only from S wanton; and f. frondosa from a few 

 stations in Vermont. 



A peculiar form of 0. regalis, f. interrupta Milde, 

 with fronds fertile in the middle was collected at Swan- 

 ton on one occasion. It seems to be due to second 

 growth after the first fronds have been destroyed by 

 mowing. 



Of the grape-ferns, Botrychium obliquum, with a form 

 approaching var. dissectum, B. temaium var. inter- 

 medium, and B. virginianum were collected, and a col- 

 ony of the adders-tongue with many of the fronds 

 paired from the rootstocks was found in a pasture at 

 Essex Junction. 



Equisetum arvense, E. fluviatile, E. hyemale var. ajjine, 

 and E. sylvaticuta were common everywhere, and E. 

 scirpoides uncommon. The scarce species, E. polus/re, 

 was twice collected in Colchester, and E. hyemale var. 



# 



a form with many 



sessile spikes from the upper nodes, was found once in 

 sandy soil at Burlington. E. variegatum var. Jesitpi, a 

 very handsome plant as it grew in tufts among the 

 rocks along the Winooski, with its trim black-and-white- 

 and-green-striped spikes, then in young fruit, was found 

 somewhat abundantly along the shores of the Winooski 

 River at Essex Junction, and sparingly in Burlington 

 and South Burlington. Among the thousands of indi- 

 viduals along the shores of the Winooski occurred tw< 

 variant forms, one of which, with one or two super- 

 numerary spikes from the topmost nodes, I have de- 

 scribed as f. genu' not iut>, while the other, whose fertile 



stems bear from two to eight long many-jointed branches, 



often fruitful at the tips, I have called forma multira- 



meutn. 



