115 



It has remained for the new regime to disclose more fully the 

 nature of this northern flora, and to greatly augment the number 

 of species known from the Philippines by the exploration of many 

 other districts as well, including the three highest mountains in 

 the archipelago, Apo and Malindang in Mindanao, and Halcon 

 in Mindoro. At least a thousand species new to science have 

 been found, and already about three fourths of this number have 

 been published. 



Perhaps we can most vividly realize the character of much of 

 this hill vegetation by glancing at the names of some of the 

 plants which compose it, remembering that while many of them 

 are found only at the highest altitudes, others occur lower down 

 upon the slopes. There are several species of raspberries, blue- 

 sent the rushes, everlastings, gentians, hollies, cresses, willow- 

 herbs, loosestrifes, bayberries, wintergreens, barberries, clematis, 

 and honeysuckles ; and there is probably only one kind each of 

 buttercup, rose, meadow-rue, thistle, sow-thistle, St. John's-wort, 

 anemone, chickweed, stone-crop, eyebright, bedstraw, lobelia, aster, 

 wild lettuce, golden-rod, strawberry, ash, maple, and willow. 



Even these familiar names show very inadequately how differ- 

 ent is the general aspect of the highlands from that of the low- 

 lands, which is undoubtedly tropical. 



It is among such species that we find those that show the most 

 important connecting links with the flora of other countries. 

 Thus, Boenninghatiscnia albiflora Reichb. f., a plant closely re- 

 lated to the rue, and previously known from the Himalayas and 

 the mountains of western China and Japan, has been collected in 

 Benguet by Mr. Williams and others. Thesium psilotoides was 

 originally described by Hance from a few specimens found near 

 Canton, in China. Mr. Williams found it also in Benguet, and 

 it has since been collected farther north by Mr. Merrill. Ana- 

 pkalis adnata DC. and A. contorta Hook, f., natives of the moun- 

 tains of India and southern China are now also known from 

 Luzon. 



