Floristik d. Phanerögamen. Chemisch-pha'rmaceut. Botanik. 335 



POLLARD, C. L. and COCKERELL, T. D. A , Four new plants 

 from New Mexico. (Proceedings of the Biological Society 

 of Washington. XV. p. 177—179. Aug. 6, 1902.) 



Viola Wilmattae, Prünula Ellisiae, P. angustifolia Helenae and 

 Achillea laxiflora. Trelease. 



Sargent, CS., Someadditions to thefloraof Massa- 

 chusetts. (Rhodora. IV. p. 160—167. August 1902.) 



Occurrence of Crataegus scabrida, C asperifolia, C. lobulata, C. 

 Pringlei and Quercus acuminata Trelease. 



Shaw, Charles, H., The Development of Vegetation in 

 the Morainal Depressions of the Vicinity of 

 Woods Hole. (Bot. Gaz. XXXIII. June 1902. p. 437. 

 With six figures.) 



Hydrophilous plants which grow from the bottom of fresh 

 water pools are often confined to a zone separated from the 

 shore line. Plants of the shore line, have running stems which 

 enable them to escape death by burial in silt. 



Atoll like stages occur in which an island, or ring of 

 floating Vegetation develops in the body of the pool, leaving 

 the margin destitute of plants. For the cause of these the 

 hypothesis of Mac Millan for plant atolls is inadequate. 

 These formations occur only in deep woods or in places 

 recently cleared. There the surrounding slopes are so protected 

 from ordinary erosive action by a dense feit of humus Vege- 

 tation that only fallen leaves and other organic stuff is swept 

 into the pool. Such material smothers the plants of the margin 

 and decays with very little production of solid matter. 



Shaw. 



Thaisz, L, Astragalus depressus L. Ein neuer Bürger der 



ungarischen Flora. (Magyar Bot. Lapok. Jänner 1902. 



No. 1. p. 26.) 



Die Pflanze wurde bei Herkulesbad in Süd-Ungarn entdeckt; der 

 Standort ist einer der nördlichsten, die bisher bekannt sind 



Ginzberger (Wien). 



Williams, E. F., Two noteworthy Carices at Sudbury, 

 Massachusetts. (Rhodora. IV. p. 167 — 168. August 

 1902.) 



Carex teretiuscula ramosa and C. tetanica Woodii. Trelease. 



KlRKWOOD, J. E. and GlES, W. J., Chemical Studies of the 

 Cocoanut, with some notes on the changes 

 during germination. (Bull. Torr. Bot. Club. XXIX. 

 1902. p. 321—359. 5 figs.) 



The results of all of the more important investigations on 

 the cocoanut, together with those obtained by the extensive 

 researches of the authors are described. The more important 



