62 PROCEEDINGS S. I. ASSN. ARTS AND SCIENCES. [VOL. I 



large numbers of our native wild plants each year. Thus it happens 

 that many of the plants which were orig-inally listed in the Flora of 

 Richmond County, New York, published by Hollick and Britton in 

 1879, with later additions, have been exterminated. And many of the 

 plants then listed as common have now become rare. Thus several 

 ferns that were formerly common on the Island are now only occasional 

 or at best only frequent, such as the maidenhair, the ebony spleenwort, 

 the silvery spleenwort, the marginal shield fern, and the beech fern. 



The spinulose shield fern still occurs in the wooded portions of the 

 Island, but it is very sparingly found in those pieces of woodland that 

 are cleared of underbrush. 



In spite of the devastation that is continually going on, the fern flora 

 of the Island is still comparatively rich and varied, as will appear from 

 this list. 



The following ferns may be classed as common : 



1. Botrychiuvi Virginianum (L.) Sw. — Grape fern, 



2. Osmunda regalis L. — Royal fern. 



3- " cinnamomea L, — Cinnamon fern. 



4- ' Claytoniana L. — Clayton's fern. 



5. Pteridiian aquilinum (L.) Kuhn. — Brake. 



6. Asplemum Filix-foemina (L.) Bernh. — Lady fern. 



7. Polystichum acrostic hoides (Michx.) Schott. — Christmas fern.. 



8. Dryopteris Noveboracensis (L.) A. Gray. — New York fern. 



9. Dryopteris, Thelypteris (L.) A. Gray. — Marsh fern. 



10. Dejiustaedtia pu7ictilobula {M.\c\iyi.) Moore. — Hay fern.. 



11. Onoclea sensibilis (L.) — Sensitive fern. 

 The following may be classed as freq.uait : 



12. Botrychium obligzium Muhl. — Ternate grape fera.. 



13- " dissectiim Spreng. (Perhaps better considered as a 



ifariety of the former.) 



14. Woodwardia areolata (.L^) Moore. — Narrow-Leaved chain fern„ 

 (Abundant in places). 



15;. Asplenium acrostie hoides Sw. — Silvery spleenwort, 



16. Dryopteris spi7iulosa (Retz.) Kuntze. — Spinulose shield fern, 



L7- * intermedia (Muhl.) Underw. 



18. Phegppteris hexa^onoptera (Michx.) Fee. — Beech fern. 



The rest are occasional or rare. 



ig. Polypodium vul(rare L, — Pi[>lypody. Rare. In the original list this^ 

 fern was reported from. Four Corners and Giflfords.. In the list of 1880-2. 

 it was reported as found "^)aringly near Silver Lak-e, Four Corners, 

 Richmond, and top of Ocean Terrace." In the Proceedings of May 



