257 



Lycopodium daratum L. May occur on some of the higher land of the 

 state, though its distribution is, in general, more northerly. 



Species of Isoetes should be found, especially in our northern lakes. 



Turning, now, to the counties from which plants of this group have been 

 reported we find that from only 31 counties have we any information 

 whatever and from a number of these only one, or at most, a few common 

 species. From a half dozen we have reasonably full returns and these are 

 mostly those in which a college is located at the county seat. Jefferson 

 leads with 31 species, followed by Putnam and Monroe with 27 each. Clark 

 stands next with 22 and the rest are 20 or mostly much less. It will thus 

 be seen that fully two-thirds of the counties of the state have not been 

 explored botanically and represent the regions into which missionary 

 work should be organized by the Survey. Of those that have been ex- 

 plored, certainly less than a dozen are even fairly well known in their 

 higher or vascular flora. 



The distribution of certain species has more than a local interest ; this 

 is specially true of those which reach their northern or southern limit in 

 the state. Of these Pohjjwdium polypodioides (P. incanum) is an example of 

 southern form whose northern range in Indiana as known at present is in 

 the counties of Posey, Gibson, Perry, Floyd, Clark and Jefferson. It is 

 not unlikely that this range will be considerably extended as soon as some 

 one with a sharp eye goes into the other counties of the southern tiers. It 

 is an epiphytic fern growing on oaks and probably other trees. Asplenium 

 pinnatijidum is another southern fern which so far has been found only in 

 Gibson county. Of the northern species, Woodnxirdia Virginica is only 

 found in Lake and LaPorte counties and will probably not be found far 

 from the borders of the great lake. SelagineUa rupestrisis at present known 

 only from Lake county,* though its limits are likely to be much extended. 

 The various species of lycopodium are likely to show limited northern 

 range, though L, complanainm has been found since the publication of the 

 state catalogue in the counties of Putnam and Monroe, but always on the 

 northern exposures of the hills. The further stations of any of our lyco- 

 podiums is a matter of more than local interest. Among other species 

 that seem to have a restricted range we have Onbclea stndMopterU reported 

 only from Montgomery, Phegopteris drijopteris from Allen, and AqAenkuii 



-The reference in the state catalogue to Gibson county proves to be an error, as the 

 plant thus referred to turns out to be a hepatic. The Montgomery county station also 

 needs verification. 



