10 PLANTS BAKERIAN.E. 



point but made daily trips above timber line in various 

 directions. 



The basins of the small streams far above timber line 

 were here all veritable alpine gardens well stocked with 

 Mertensias, Polemoniums, Trifoliums, Erigerons, Castilleias 

 and many other showy alpine genera. Even the most 

 rugged slopes exhibited a great diversity of species ; for 

 every nook and crevice among the rocks where any soil had 

 found a lodgment was filled with plants. On the very 

 summit of Mt. Hayden at 13,000 feet we gathered excel- 

 lent specimens of Trifolium nanum, Chionophila Jamcsii, 

 Ligusticum Eastwoodix and Pentstemon Harbourii. 



It is to be noted that about three-fourths of the plants 

 collected here were of species not represented at any of the 

 lower altitudes. 



It was with much regret that on July 16 we took leave 

 of this interesting locality and made our way to Durango. 

 Each little sheltered slope and basin that we visited fur- 

 nished some plant not seen elsewhere, and, had time per- 

 mitted a thorough exploration of the region our list of 

 species would have received many additions. Furthermore, 

 the flowering season had not yet reached its fullness. Very 

 many species were not yet beginning to bloom, and it was 

 manifest that a month's sojourn would have enabled us to 

 nearly double our collections. 



This Alpine research was disappointing in respect to only 

 two groups of plants. Of ferns we took but two species, 

 Cystopteris fragilis and Cryptogramme acrostichoides ; and the 

 number of lichens was much smaller than had been antici- 

 pated. The bare rocks supported a fair number of crusta- 

 ceous species, which, owing to the early loss of our chisel, 

 we were unable to collect; and terrestrial and arboreal 

 species were very scarce. 



