- 3 6- 



Azolla Carouniana ix Winter. — It does not seem known 

 at present whether Asolla is evergreen in the northern parts of its 

 range or not, but here it remains fresh and green through the 

 winter, through the pools in which it floats may occasionally have 

 a thin coating of ice. The number of specimens does not appear 

 to be as great in winter as at other seasons, and it may be that the 

 species forms resting bodies that sink to the bottom, as other 

 plants do. I have not access to the literature of the subject at 

 present, but hazard this conjecture. 



EquisETUM robustum. — The moisture in the soil nearly any- 

 where about New Orleans renders it a most congenial one for 

 the scouring rushes, and many vacant lots are the homes of 

 Equisctum robustum. The plants of this species are so nearly like 

 those of E. hycmale in superficial appearance, and the two grow 

 in such exact imitation of each other's habit and habitat that hav- 

 ing seen one, the collector can easily imagine the other. There 

 is one point about many of the plants of robustum here that dis- 

 tinguishes them from hyetnale and that is the production of long 

 slender branches. Apparently the plants always branch if the tip 

 is injured, and I think the uninjured ones either branch late the 

 first season or at the beginning of the second. The children have 

 found an unique use for the stems. They place them on the 

 street car track for the pleasure of hearing them explode as the 

 car rolls over them. 



Psilotum nudum ix Florida. — Last December Mr. 

 Severin Rapp, of Sanford. Florida, sent me for identification some 

 specimens of a fern ally which proved to be that rare cousin of the 

 Lycopodium — Psilotum nudum or P. triquctrum. Later in reply 

 to a request for further information, he wrote that the specimens 

 were found near Sanford, not far from the shore of Lake Monroe 

 which is connected with the St. John's river. They grew upon 

 the trunk of a cabbage palmetto, about a foot from the ground 

 and were in full fruit. In the same locality were specimens of the 

 grass fern (I'ittaria Uncata) and the gray polypody. The lists of 

 ferns credit this species to "Southern Florida," but as I have been 

 unable to locate any definite stations, I take pleasure in recording 

 this one. Sanford is about 125 miles south of Jacksonville, in 

 Orange County. 



