ee AMERICAN FERN JOURNAL 
ramosum _(Roth.) cakes. and Botrychium lanceolatum 
(Gmel.) Angstr. were seen growing together on July 2, 
1908, immediately in front of the hotel at this resort. 
If any of the other species of botrychia ever grew in the 
same spot, being larger and more conspicuous, they 
__ have been plucked up and exterminated. 
_ Near Burton in the same county, Bobychiun dissec- 
tum Spreng. and Botrychium obliquum Muhl. and its 
varieties (as yet undetermined) grow in a moist, sandy 
_ bottom field of four or five acres in such profusiol that 
- even a modest estimate would sound almost absurd. 
Fifty-six plants were counted in a space estimated at 
twenty feet square. They were almost as peaceatical 
in other parts of the field. 
A similar coe was: “noted in the. fall of 1909, 
wick, neny In this i 
ww : very suggestive of the variety ten 
oo Solin (Und .) Gilbert were found: Tather ‘lent fi 
— within a few yards of each other. pes 
oe ae probable explanation of this’ grouping eee : 
of these plants i is to be found in the fact that they are __ 
_ rather exacting as to the ecological conditions under | 
which they will grow best, and wherever these conditions 
2 obtain the plants are likely to occur rather plentifully. 
a Curiosity prompted the ‘measurement of hia poole 
ae two specimens of Bot eth yew 
collected near Trafford City, Allegheny Co., Fe. “May : 
28, 1910. The. Speen. were taken at random from 
a gro _perhap twenty plants of the same species. x 
; In eae 1 case a small part of the root system was. prob-— 
ly lost since > the idea Of tiesiaring the roots was not 
