NOTES AND ABSTRACTS. 



923 



Anomalous bundles in the stem are dealt with in another chapter (pp. 

 151-206). The chief feature of this part of the work is the agreement 

 with the results obtained for Campanulacea, and the proof that in the 

 majority of the cases the anomalous bundles are produced at junctions of 

 the normal bundles, and after a course through the pith they frequently 

 return again and join the normal vascular system. Cases of anomalous 

 bundles in the floral organs are also considered. The arrangement of the 

 bundles in the stem and the gradual reduction of the leaf-trace bundles 

 from their insertion downwards are more carefully entered into for a few 

 selected species of Phyteuma, Eucalyptus, and Erigeron (pp. 215-247). 

 The "phyton" theory is discussed at some length. In a general 

 summary the chief results are gathered together. — W. G. S. 



Vegetative Cell Division in Allium. By M. L. Merriman (Bot. 

 Gaz. xxxvii. No. 3, p. 178 ; with 3 plates). — The details are given under 

 the headings Cell-differentiation, the Achromatic Figure, Centrosomes, 

 Nucleoli, the Chromatic Figure. The plates are photo- reproductions of 

 karyokinesis in various stages. — G. H. 



Vellozia trichophylla. By W. B. H. (Bot. Mag. t. 7962).— Native 

 of East Tropical Africa. Nat. ord. Amaryllidacece ; tribe Velloziece. This 

 plant has a thick stock upwards of a foot in diameter. Flowering shoots 

 numerous and very short. Leaves grass-like ; flowers reddish-lilac, very 

 fragrant, 2 J to 3 inches across. — G. H. 



Venation of Iridaceae Petals. By Ludwig Singhof (Beih. Bot. 

 Cen t. xvi. pp. 111-146 ; with 1 table and 25 text figures). — The author has 

 investigated the venation of the petals of 206 species (belonging to 26 

 genera) of this order. The six types distinguished are : 1, one main 

 nerve and two simple lateral ones ; 2, main nerve and two simply branched 

 side ones ; 3, main nerve and two side nerves, all with numerous anasto- 

 mosing branches ; 4, main nerve with two side nerves which give off at 

 base a branch almost as large as themselves ; 5, main nerve and two side 

 nerves of which each gives off two branches nearly equal to themselves ; 

 6, main nerve with two side nerves of which each gives more than two 

 large branches. The genera do not fall exactly under these types. 



G. F. S.-E. 



Verbena bonariensis. By A. B. Rendle (Joum. Bot. 504, p. 370 ; 

 12/1904). — Description of a new species with somewhat the habit of 

 V. microphylla, but distinguished by small trisected leaves and larger 

 flowers. These latter are apparently mauve or lilac. It was collected by 

 Mr. Hesketh Prichard on the slopes of Mt. Buenos Aires, Patagonia. 



G. S. B. 



Veronica Traversii. By W. Dallimore (Garden, No. 1725, p. 391 ; 

 10/12/1904). — The shrubby species of Veronica form an exceptionally 

 interesting group. Unfortunately they are not very hardy, and, as a 

 whole, are not to be depended on except in the warmer parts of the 

 country. In Devonshire, Cornwall, South Wales, and other places it is 

 a common thing to see great bushes of V. speciosa covered with purple 

 flowers, and very fine they look. About London, however, it is impossible 



