Floristik und Systematik der Phanerogamen. 123 



KOEHNE, E., Drei cultivirte Evonymus. (Gartenflora. LI II. 

 1904. p. 29—34.) 



Verf. beschreibt unter Beigabe von 2 Abbildungen die folgenden 

 Arten resp. Varietäten: 



Evonymus latifolia Scop, var. planipes Koehne, von der Hauptart, 

 bei welcher die Blattstiele oberseits rinnenförmig vertieft und die Blatt- 

 flächen grösstenteils mehr lang gezogen, am Grunde mehr abgerundet, 

 endlich in der Mitte, nicht über der Mitte, am breitesten sind, unter- 

 schieden durch die oben flachen Blattstiele, die meist aus keilförmigem 

 Grunde verkehrt-eilanzettlichen oder schmal verkehrt-eiförmigen, zuge- 

 spitzten Blätter und die etwas früher reifen Früchte. 



E. Gedoensis hört. Koehne hat zwar ebensolche Früchte wie 

 E. Hamiltonia Wall., letztere hat aber sehr viel schmälere Blätter und 

 nur halb so lange Staubfäden, während der Hauptunterschied gegen 

 E. europaea in der Farbe der Staubbeutel liegt, die bei jener dunkel- 

 braunpurpurn, bei dieser gelblichweiss sind. 



E. hians Koehne nov. spec. ist von europaea, Hamiltoniana, Gedo- 

 ensis und Sieboldiana vor Allem unterschieden durch den klaffenden, 

 blutrothen Samenmantel und den blutrothen Samen. Wangerin. 



Maiden, J. H., Two More New Weeds. (Queensland Agric. 



Journ. Vol. XIV. May 1904.) 



This is a mention of two foreign plants which have invaded New 

 South Wales at Boggabri. The first is the Buffalo Burr of the 

 United States (Solanum rostratum Dunal), closely allied to the to- 

 mato and potato, but it has spiny burrs which become attached to ani- 

 mals and spread the plant, It is a native of the western plains of the 

 United States. It prefers sandy soil. The second is Potentilla erecta 

 Linn , a native of Europe: it is found near Tum b er umb a. 



W. C. Worsdell. 



Masters, M. J., A gener a 1 view of the genus Pinus. 



(Journal of the Linnean Society. Vol. XXXV. 1904. No. 248. 



p. 560—659. Plates 20—23. 6 figs.) 



In the present treatise the genus Pinus is taken as including those 

 Abietineae, in which both shoots and leaves are dimorphic, whilst Cedrus 

 and Larix are regarded as its nearest allies. Following on a brief general 

 discussion of the morphology (p. 560—563) a chapter is devoted to the 

 histological characters of the leaf (p. 563— 567), based on an examination 

 of numerous dried and living specimens. An important feature is found 

 to lie in the number and characteristics of the cells of the endodermis. 

 The presence of a Single or double vascular bündle is further of taxo- 

 nomic value and is more useful than the position of the resin-canals. 

 Other features, which were found to be of use in Classification are the 

 shape of the central cylinder in transverse section, the presence or ab- 

 sence of a layer of thin-vvalled cells just beneath the epidermis, as well 

 as the position and number of the rows of stomata. The structure of 

 the cotyledons and primordial leaves is of a less highly developed cha- 

 racter than that of the permanent foliage, the vascular bündle often being 

 unbranched in the former, when it is double in the adult leaves. 



The systematic portion of the paper (p. 56S — 631) comprises a füll 

 description of 73 species, which are classified into two main divisions, 

 Tenuisquamae with relatively thin cone-scales and Crassisquamae, in 

 which the woody cone-scales are markedly thickened towards the apex. 

 The Tenuisquamae include two sections: Strobus wilh marginal resin- 

 canals and distinctly winged seeds, and Cembra with five-leaved dwarf- 

 shoots, median resin-canals and almost or entirely wingless seeds. The 

 Crassisquamae are divided into two main groups, each including a 



