THE ALPINE WOODSIA. IO1 



or alternate, sometimes distant from each other, egg- 

 shaped, and divided into two or three rounded, blunt 

 pinnules, or, in small plants, lobes, the clefts between 

 them being more or less deep according to their size. 

 Fructification produced upon the margins of the pin- 

 nules, and protected by indusia in the form of scales, 

 which lie under the sori and have fringed margins, which 

 are spread over them, as already indicated in the case of 

 the species last described. But in Woodsia alpina the 

 undersides of the pinnules are less hairy than are those 

 of the Oblong Woodsia, and the sporangia are con- 

 sequently better seen. 



HABITATS. Similar to those of its congener Woodsia 

 ilvensis, namely, moist crevices of rocks at altitudes 

 between twelve hundred and three thousand feet above 

 the sea-level. 



WHERE FOUND. Only in Wales and Scotland. In 

 Wales, in the county of Caernarvon only; on the eastern 

 side of Snowdon in a rocky chasm called Clogwyn-y- 

 Garnedd, and on limestone rocks at Moel Lechog at 

 the pass of Llanberis. In Scotland, in the counties of 

 Dumfries, Forfar, and Perth the habitats in Forfarshire 

 being in Glen Fiadh, on the Clova Mountains, and in 

 Glen Isla ; and in Perthshire, on Ben Chonzie (near 

 Crieff), on Ben Lawers, at Catiaghiamman, on Craig 

 Challiach, and at Mael-dun-crosk. But, as with other 

 reputedly " rare " ferns, it is quite possible that it is 

 much more plentiful than is generally supposed. 



