-8 7 - 



52. Asplenium myriophyllum Mett. In moist shades. 



Florida; also in the West Indies, — A. rhizophyl- 

 lum myriophyllum Mett. The forms of this 

 species in the United States have recently been 

 named A. verecundum and A. Curtissii by 

 Underwood. 



53. Asplenium myriophyllum Biscaynianum D. C. 



Eaton. Rare. Southern Florida. Regarded as 

 a species by some botanists. — A. Biscaynianum 

 A. A. Eaton. 



54. Asplenium parvulum Mart. & Gal. Small Spleen- 



wort; Little Ebony Spleenwort. Tolerably 

 common ; in dryish rocky soil. Virginia to 

 Florida, Kansas and Texas; also in Jamaica. — 

 A. resiliens Kunze. 



55. Asplenium pinnatifidum Nutt. Pinnatifid Spleen- 



wort. Rare and local ; on dryish rocks. New 

 York to Georgia, Alabama, Kansas and Missouri. 



56. Asplenium ruta-muraria L. Wall rue. Rue 



Spleenwort. Tolerably common ; on dry rocks. 

 Southern Canada to Alabama, Missouri and 

 Michigan ; also in Europe and Asia to the Him- 

 alayas. 



57- Asplenium septentrionale (L.). Forked Spleen- 

 wort. Rare; on rocks. Colorado to New 

 Mexico and Arizona; South Dakota; also in 

 Europe, northern Asia and the Himalayas. 



58. Asplenium serratum L. Rare; on the trunks of 

 trees. Southern Florida; also in the West 

 Indies and Africa. 



59- Asplenium trichomanes L. Maidenhair Spleen- 

 wort. Common; on shaded rocks, wet or dry. 

 Nearly throughout North America ; also in north- 

 ern Europe and Asia and in the mountain tops 

 in the tropics. The form incisum Moore has 



