Botrychium 



Ophioglossaceae 



39 



Clausen has seen this specimen and confirms the identification, 

 was collected by J. A. Nieuwland at Dune Park, Porter County. 

 P. E. I. to Pa., westw. to Oreg. and Calif. 



The third 



2. Botrychium multifidum (Gmel.) Rupr. var. silaifolium (Presl) 

 Broun. (Botrychium tematum var. intermedium D. C. Eaton.) Map 3. 



This report is based upon specimens collected by Marcus Lyon, Jr., and 

 R. M. Tryon, Jr., in the Dunes State Park, Porter County. Tryon reported 

 his specimens as Botrychium dissectum f. elongatum. R. T. Clausen and 

 E. T. Wherry have seen these specimens and refer them to this species. 



Maine to Que., and B. C, southw. to N. J. and Oreg. 



o 5o 



Map 4 



Botrychium dissectum Sprenc 



50 

 Map 4a 

 Botrychium dissectum 

 var. obliquum (Muhl ) Clute 



3. Botrychium dissectum Spreng. (Botrychium obliquum var. dissec- 

 tum (Spreng.) Clute.) Cutleaf Grapefern. Map 4. Local throughout 

 the state in either dry or moist soils. All of my specimens are from wood- 

 land; some are from white oak woods, some are from beech and sugar 

 maple woods, and one specimen was found associated with sweet gum and 

 white elm. 



N. B. and N. S. to Minn., southw. to Fla., Mo., Ark., and Mex. 



3a. Botrychium dissectum var. obliquum (Muhl.) Clute. {Botrychium 

 obliquum Muhl.) Oblique Grapefern. Map 4a. Infrequent throughout 

 the state in wet or dry woodland. Most of my specimens were found in 

 low, flat woods associated with sweet gum and beech, and a few were 

 found in dry woodland with beech and sugar maple. 



A form with less divided and oblong pinnae has been described by E. W. 

 Graves (Amer. Fern Jour. 22: 50-52. 1932) as Botrychium obliquum var. 

 oblongifolium. Graves named one of my specimens from Marion County 

 and one from Crawford County as belonging to this variety. Since fern 

 students are not agreed upon the status of this fern, I record the data 

 without comment. 



N. B. to Minn., southw. to Fla., Mo., and Tex. 



