Floristik und Systematik der Phaneroganien. 523 



Martelli, U., Pandani asiatici nuovi. (Bull. Soc. Bot. 

 Ital. 1904. p. 298—304.) 



Cette publication est une note preliminaire d'une monographie 

 du gerne Pandaniis ä laquelle l'auteur s'applique depuis quelques annees. 

 On y trouve la diagnose de 30 especes: 3 de la section Keiira, de 

 War bürg, 4 de la section tiombronia, 2 de la section Bryantia, 1 de 

 la section Lophostlgma, 8 de la section Kykia, 11 de la section Acro- 

 stigma, et l du groupe des plantes epiphytes. 



Montemartini (Pavia). 



Oliver, F. W. and A. G. Tansley, Methods of surveying- 



Vegetation on a lange scale. (New Phytologist. Vol. III. 



Nov.-Dec. 1904. p. 228—237. 4 figures and 1 plate.) 



Two methods found useful in preparing accurate maps of plant 

 associations and physical features of small level areas. In the „method 

 of Squares" the ground is marked off by flags into Squares (each side 

 100 feet or 30,5 metre long), and the Squares are reduced to maps 

 (5 inch side). An example of a chart is given. The „gridiron method" 

 is better adapted for showing greater detail. A square (sides 25 feet 

 long) is divided by tapes into five parts (25 X ^ feet), and the gridiron 

 thus formed is reproduced on a five inch map. A gridiron chart is 

 reproduced, which shows the limits of the chief plant associations, with 

 contour lines and altitudes; the Vegetation and the physical features 

 show a distinct agreement. Smith (Leeds). 



Pawson, A. H., Weeds. (The Naturalist. Jan. 1905. No. 576.. 

 p. 4-14.) 



The weeds of cornfield and garden are chiefly annuals, whose cradle- 

 land is, in many cases as obscure as that of the cultivated plants 

 amongst which they grow. Most of them have come from the north and 

 centre of Europe and Asia, from inland rocks and wastes, and from 

 the seaside; but favoured under the influence of man, they tend to vary 

 considerably from the parent forms, and do not enter into successful 

 competition with the annuals of uncultivated land. Smith (Leeds). 



Praeger, R. L, Additions to „Irish Topographical 

 Botany in 190 4. (Irish Naturalist. Vol. XIV. No. 2. 

 February 1905. p. 21—29.) 



Three Rubi new to I r e 1 a n d (viz. R. podophyllus, R. serpens, 

 R. longithyrsiger var. botryeros) have been recorded. Matricaria 

 occidentalis Greene, having been established as a sub-species under 

 M. discoidea DC, a revision of the records of the latter in Ireland is 

 necessary. Several plant-records have been withdrawn from Kerry 

 (viz. Valeriana Mikanii, Hieraciiim vulgatiim, etc.). The main body of 

 the paper is occupied by an enumeration of the new records of the year^. 

 arranged under the respective counties. F. E. Fritsch. 



Preuss, H., Untersuchungen der Kreise Löbau und 

 Rosenberg. (jahresber. Preuss. Bot. Ver. 1903/04. 

 Königsberg, R. Leupold. p. 30 — 35.) 



V/ährend im Kreise Rosenberg die Rothbuche (Fagns silvatlca L.) 

 zu den häufigsten Waldbäumen gerechnet werden muss^ ist sie im Kreise 

 Löbau östlich der Drewenz nur im Forst Sophienthal in einigen 

 sehr zerstreut vorkommenden Exemplaren urwüchsig anzutreffen und tritt 

 dann erst wieder an einigen Stellen der Löbau-Osteroder Kreis- 

 grenze auf. Auch das Vorkommen der Rothtanne (Picea excelsa Link) 



