Floristik, Geographie, Systematik etc. 563 



Chase, A., Field notes on the climbing bamboos, of Porto 

 Rico. (Bot. Gaz. LVIII. p. 277-279. 1 pl. Sept. 1914.) 



The climbing bamboos, with the tree ferns and mountain palms 

 are characteristic of the mountain regions from 2000 feet altitude 

 upward to the summit. Four species are known: Arthrostylidiuin 

 multispicatuin , A. sannentosum, A. angustifoliiun and Chusquea 

 nbietifolia. Notes are given on each species. Harshberger. 



Fapwell, O. A., The correct name for the hemlock or 

 spruce. (Bull. Torrey Bot. Cl. XLI. p. 621—629. 1914. Jan. 1915.) 



Analysis of the early literature of what is commonly called 

 Tsuga canadensis, with proposal of the new combination T. ameri- 

 cana as properly applicable to it. Trelease. 



Gleason, H. A. and F. T. Mc Farland. The introduced 

 Vegetation in the vicinity of Douglas Lake, Michigan. 

 (Bull. Torrey Bot. Cl. XLI. p. 511-521. Oct. 1914.) 



Of 120 introduced species in the region, only 56 have been 

 observed within the uncultivated region. All of these occur in the 

 vicinity of dwellings; 26 along logging roads, or camp grounds in 

 the hardvyTOod region; 21 along roads or camp grounds among the 

 aspens; and only 3 show tendency to establish themselves among 

 the native species. Away from human surroundings the introduced 

 species cannot compete successfuUy with native species. 



Harshberger. 



Guppy, H. B., Notes on the native plants ofthe Azores 

 as illustrated on the slopes of the mountain of Pico. 

 (Kew Bull. iMisc. Inform. N». 9. p. 305-321. 1914.) 



The author directs attention mainly to the vertical distribution 

 of plants on the mountain of Pico. In his summary at the end of 

 the paper, it is pointed out "that for purposes of comparison with 

 the Canaries and Madiera, the Azores should be regarded as 

 preseating conditions for forest-growth up to levels of 3000 — 4000 ft." 

 The zones of Vegetation are given as follows: 1) the Faya zone, 

 up te 2000 or 2500 ft.; 2) the Juniper and Daphne zone, 2000— 

 4500 ft.; 3) the Calluna, Menziesea and Thymus zone, 5000 ft. 

 to the summit; 4) the Upland moors, 2000 — 4000 ft., the native 

 Vegetation of these zones being described in order of their succes- 

 sion beginning with the summit. 



After alluding to the relatively small number of indigenous 

 plants as compared with introduced plants, the primitive Vegetation 

 of the Island is discussed and evidence is brought forward in Sup- 

 port of the view that the trees of the original woods were of far 

 greater size than at present. 



With regard to the general affinities of the Azorean flora it is 

 remarked that, whilst the plants of the Upland moors are in the 

 mass European species that do not occur either in Madiera or in 

 the Canaries, most of the characteristic trees and shrubs of the 

 woods are now-European and either exist in the other two groups 

 or are represented these by closely related species. It is suggested , 

 in passing, that the European dement in the woods was mainly 



