Census of Cultivated Indigenous Plants. 



275 



S. Douglasii, Spring. Gill. 1881. 



S. lepidophylla, Spring. * 



S. Ludoviciana, A. Br. (Eng.) 



S. pilifera, A. Br. (Eng.) A 

 Mexican species, said by Baker 

 to have been found in Texas. 



S. rupestris, Spring. Gill. 1881. 



Salviniace^e. 

 Azolla Caroliana, Willd. * 



Marchantiaceje, Liverwort Fam- 

 ily. 



Marchantia. A single species in 

 our region. 

 M. polymcrpha, Linn. Gill. 1884. 



