4 



THE FERN BULLETIN 



apparently no soil is possible. Notholaena dealbata, 

 Pellaea atropurpurea, P. ternifolia and Cheilanthes 

 lendigera will also come in around the cliffs and in the 

 deep gulches. 



If the timber has not been destroyed oaks, black 

 walnuts, juniper and sycamores will fill the canyon in 

 the first thousand feet, not like our oaks, etc., but they 

 will be known. Probably a fine stream of mountain 

 water also will cheer the collector, to disappear in the 

 sand at the desert's rim. The shade grows more dense, 

 the rocks more rugged, and at 7,000 feet and there- 

 after, the pines, spruce and other conifers come in and 

 it is quite like a New England or Tennessee landscape. 

 At 10,000 feet quaking asp, mountain ash, scarlet dog- 

 wood, willows, cherries, more conifers, hanging moss, 

 more kinds of Mistletoe and meadows of tall grass and 

 Iris. 



Large perpendicular crevices from a few inches to 

 100 feet wide, perhaps a thousand feet long, is the home 

 of glorious Aspidium juglandifolium, but now known 

 more properly as Pliancrophlcbia auriculata. This 

 species usually dwells midway in the mountain where 

 the atmosphere has the most moisture, but I have found 

 it in the lower rocks at the desert's edge. When the 

 fern hunter sees the crevices at a distance he can make 

 a good guess concerning auriculata, and up in the 

 mountain he finds the plants nearly every day. 



Asplcnhim Fcrrissi lives in one of these large crevices 

 in company with auriculata and has never been found 

 elsewhere. I also found a variety of Polystichwm 

 aculeatum under similar circumstances and also but 

 once. Nephrodiuiii Hlix~mas and Cheilanthes Eatoni 

 were found also in the last instance. In deeper shade 

 and with more than the usual moisture I found Asplcn- 



