PI^'ANTS OF SOUTHERN NEW JERSEY. 137 



MATTEUCCIA Todaro. 



Matteuccia struthiopteris (L.). Ostrich Fern. 



Osmunda struthiopteris Linnaeus, Sp. PI. 1066. 1753 [Northern Europe]. 



Onoclea struthiopteris Britten 310. 



Matteuccia struthiopteris Keller and Brown 14. 



Along the Delaware River at several points in northern New 

 Jersey and at Crosswicks Creek on our northern boundary, where 

 it was found by Mr. E. D. Sturtevant.* 



ONOCLEA L. 



Onoclea sensibilis L. Sensitive Fern. 



Onoclea sensibilis Linnaeus, Sp. PI. 1062. 1753 [Virginia]. — Knieskern 41. — 

 Britten 310. — Crawford, Bartonia L 19. 1909. 



Found throughout, except in the Pine Barrens; occurring in 

 wet swamps, usually in shade. 



Spores Mature. — Early October, apparently through autumn. 

 Fertile fronds arise in early July, the pinnae (which form berry- 

 like bodies inclosing tht- sporangia) split open by early October 

 and allow the sporangia to dehisce and the spores to escape. 



Middle District.— AWaire. (S), Pt. Pleasant (S), New Egypt, Hartford, 

 Pemberten (NY), Birmingham, Arney's Mt. (S), Delaire, Medferd (S), 

 Sewell (S), Sicklerville (S), Swedesbere, Salem (S). 



Coast Strip. — Manahawkin, Cox's, Surf City (L), Ship Bottom (L), 

 Tucker's (L), Palermo (S). 



Cape May.— Cape May (OHB). 



Order EQUISETALES. 



Rush-like plants with simple or much-branched jointed stems, 

 leaves reduced to toothed sheaths covering the joints. Only three 

 species occur within our district, none of them entering the Pine 

 Barrens. 



Family EQUISETACE^. Horsetails. 

 Fruiting Data. — The same character as for Filicales. 



* According to Britten's Catalogue. No specimens seen. 



