Neue Litteratur. 45 



Blake, S. F. 1918. New Spermatophytes eollected in Venezuela and 



Curacao by Messrs. Curran and Haman. (Contr. Gray Herb. 



Harvard Univ. N. S. Uli. p. 30-55.) 

 Blake, S. F. 1917. The varieties of Chimaphila umbellata. (Rhodora. 



XFX. p. 237-244.) 

 Blake, S. F. 1917. Two new Polygonums from New England. (Rho- 

 dora XIX. p. 232—235.) 

 Brüten, J. 1918. The cultivated Dahlia. (Journ. of Bot. LVI. p. 32—35.) 

 Britton, N. L. 1918. An undescribed Scirpus from California. (Tor- 



reya. XVIII. p. 36. 1 f.) 

 Brown, W. H. and A. S. Argüelles. 1917. The composition and mois- 



ture content of the soils in the types of Vegetation at different 



elevations on Mount Maquiling. (Philippine Journ. Sc. See. A. 



XII. p. 221-233. 3 pl.) 

 Butters, F. K. and H. St. John. 1917. Studies in certain North American 



species of Lathyrus. (Rhodora. XIX. p. 156—163.) 

 Candolle, C. de. 1918. Piperaceae a Jaheri in insulis Key collectae. 



(Med. Rijks Herb. Leiden. 1918. 32. 2 pp.) 

 Colgan, N. 1918. Lusitania and kerry: a botanical parallel. (Irish 



Nat. XXVII. p. 20—26.) 

 Curtis's (1918) botanical Magazine. 4th Ser. Nos. 157, 158, 159. (London, 



L. Reeve & Co. 1918. 8°.) 

 Daley, Ch. 1918. Notes on a visit to Mallacoota Inlet. [concl.] (Vic- 



torian Nat. XXXIV. p. 135—139.) 

 Evrard, F. 1915. Les facies vegetaux du Gätinais francais et leurs 



rapports avec ceux da Bassin de Paris dans la region de Fon- 



tainebleau. (These, Fac. Sc. Paris, 1915.) 

 Ewart, A. J. 1918. A water weed at Toorourrong. (Journ. Dep. Agr. 



Victoria. XVI. p. 109—110.) 

 Fischer, H. 1918. Weiteres vom gabeligen Leinkraut, Silene dicho- 



toma Ehrhart. (Natw. Wochenschr. XVII. p. 140—141.) 

 FranQOis, L. 1918. Les semences des plantes adventices leur importance 



dans les analyses des semences. (Rev. gen. Bot. XXX. p. 97—105.) 

 Gamble, J. S. 1918. Flora of the presidency of Madras. Part II. 



Celastraceae to Leguminosae-Papilionatae. (London, 1918. 8°. 



p. 201—300.) 

 Gates, F. C. 1917. The revegetation ofTaal volcano, Philippine Islands. 



(Plant World. XX. p. 195-207. 4 f.) 

 Godfery, M. J. 1918. Notes on the habitats of Orchids. (Journ. of Bot. 



LVI. p. 49—50.) 

 Graebner, P. 1918. Synopsis der mitteleuropäischen Flora. 94. Lfrg. 



(Leipzig, Borntraeger. 1918. p. 625—704.) 

 Greenman, J. M. 1917. Two exotic Compositae in North America. 



(Ann. Missouri bot. Gard. IV. p. 289—292. 1 pl.) 

 Haliier, H. 1918. Ueber Aublet's Gattungen unsicherer oder unbe- 

 kannter Stellung und über pflanzengeschichtliche Beziehungen 



zwischen Amerika und Afrika. (Med. Rijks Herb. Leiden. 1918. 



35. 33 pp.) 

 Haüier, H. 1918. Ueber Patrick Browne's Gattungen zweifelhafter 



Stellung. Med. Rijks Herb. Leiden. 1918. 36. 6 pp.) 

 Harper, R. M. 1918. The plant population of northern lower Michigan 



and its environment. (Bull. Torrey bot. Club. XLV. p. 23— 42. 3 f.) 

 Hegi, G. 1918. Illustrierte Flora von Mittel Europa. IV. Bd. 38. Lfrg. 



p. 193—320. ill. Preis M. 5. 25. VI. Bd. bearb. von Dr. A. von 



Hayek. 12. Lfrg. p. 497-544. ill. Preis M. 1.75.) (München, J. F. 



Lehmann. O. J. [1918]. 8°.) 



