6Q 



3788. alopecuroides, L. 



3789. annotinum, L. 



3790. dendroideum, Michx. 



3791. clavatum, L. 



3792. Carolinianum, L. 



3793. complanatum, L. 



var. sabinasfolium, Spf 



3794. alpinum, L. 

 Selaginella 



3795. selaginoides, Link. 



3796. rupestris, Spring. 



var. tropica, Spring. 



3797. tortipila, Braun. 



3798. lepidopliylla, Spring. 



3799. apus, Spring. 



3800. Douglasii, Spring. 



3801. ? alpidula, Spring. 



3802. Californica, Spring. 

 Tmesipteris 



3803. ? Fosteri, Endl. 



3804. ? truncata, Desv. 

 Psilotum 



3805. triquetrum, Swz. 

 Isoetes 



3806. lacustris, L. 



3807. Tuckermani, Braun. 



