234 Botanisches Centralblatt. 



members of l'Association Internationale des Botanistes June 22 nd — 



July 3 rd 1913. (Kobenhavn, 1913. 23 pp. 3 f.) 

 Oliver, D. 1913. Flora of Tropical Africa. Edited by W. T. Thisel- 



ton-Dyer. Vol. VI. Sect. 1. Part 6 (Euphorbiaceae, conclusion; 



addenda). (London 1913. 8°. p. 1 — 13 and 961 — 1095.) 

 Osswald, L. 1912. Das Windehäuser Holz und der alte Stolberg. 



(Jahrber. nath. Ges. Hannover. LX. u. LXI. p. 42—64.) 

 Palla, E. 1913. Neue Cyperaceen. VI. (Oest. bot. Zschr. LXIII. p. 40 1—404.) 

 Parish, S. B. 1913.. Additions to the known flora of Southern Cali- 

 fornia. (Muhlenbergia. IX. p. 57 - 59.) 

 Perez, G. V. 1913. L'Echium auberianum Webb. (Rev. hört. Algerie. 



XVII. p. 276-277.) 

 Perez, G. V. 1913. Le Juniperus cedrus Webb. (Rev. hört. Algerie. 



XVII. p. 273-276. 1 f.) 

 Popovici, A. P. 1913. Contribution ä la flore de la Dobroudja (Rou- 



manie). (Ann. Sc. Univ. Jassy. VII. p. 291—296.) 

 Praeger, R. Lloyd. 1913. Notes on the flora of the Saltees. I. Phanero- 



gamia, (Irish Nat. XXII. p. 181 — 191.) 

 Prain, D. 1913, Curtis's Botanical Magazine. IX. No. 105. 

 Prain, D. and I. H. Burkill. 1913. Dioscoreae Elmerianae. (Leaflets 



Philippine Bot. V. p. 1589-1599.) 

 Pratt, A. 1913. Wild flowers of the year. (London, 1913. 8°. 284 pp. ill.) 

 Rendle, A. B. 1913. Plants of the Sudan collected bij Dr. D. T. 



Macdougal. (Journ. of Bot. LI. p. 265—273.) 

 Rendle, A. B. 1913. Reports of Dept. of Botany, British Museum, 



1908—12. (Journ. of Bot. LI. p. 298-303. to be cont.) 

 Renwick, J. 1913. Some notable Ayrshire trees and their associations. 



(Ann. kilmarnock Glenfield Rambiers Soc. 1913. p. 21—28.) 

 Richardson, H. 1913. Aquilegia vulgaris dominant. (N. Phytologist. 



XII. p. 267—268.) 

 Rolfe, R. A. 1913. Laelia caulescens. (Kew Bull. 1913. p. 224—226.) 

 Rose, J. N. 1913. Populus MacDougalii: A new tree from the south- 



west. (Smith. Mise. Coli. LXI. p. 1—2, 1 pl.) [The author describes 



and illustrates a hitherto unrecorded tree (Populus MacDougallii) 



from the Salton Basin, California. — J. M. Green man.] 

 Rydberg, P. A. 1913. Studies on the Rocky Mountain Flora. XXIX. 



(Bull. Torrey bot. Club. XL. p. 461—485.) 

 Salisbury, E. J. 1913. British Woodlands. (Trans. Hertford nat. Hist. 



Soc. Field club. XV. p. 15-18.) 

 Saxton, W. T. 1913. The Classification of Conifers. (N. Phytologist. 



XII. p. 242—262. 1 f.) 

 Schade, F. A. 1912. Pflanzenökologische Studien an den Felswänden 



der Sächsischen Schweiz. (Jena 1912. 8°. 92 pp. 1 T.) 

 Sehenck, H. 1913. Acaciae myrmecophilae novae. (Rep. Spec. nov. 



XII. p. 360-363.) 

 Scheuermann, R. 1912. Beitrag zur Kenntnis der bei der Stadt Han- 

 nover und in ihrer Umgegend auftretenden Adventivpflanzen. 



(Jahrber. nath. Ges. Hannover. LX. u. LXI. p. 65—85.) 

 Schlechter, R. 1913. Asclepiadaceae africanae. (Bot. Jahrb. LI. p. 



129—155. 4 F.) 

 Schlechter, R. 1913. Die Orchidaceen von Deutsch-Neu-Guinea. (Rep. 



Spec. nov. Beih. I. p. 801 — 1039.) 

 Schlechter, R. 1913. Eulophia turcestanica (Litw.) Schltr., nov. comb. 



(Rep. Spec. nov. XII. p. 374.) 

 Schmeil, O. und J. Fitschen. 1913. Flora von Deutschland. Hilfsbuch 



zum Bestimmen der zwischen den Deutschen Meeren und den 



