246 MORPHOLOGY, ETC., VASC. PLANTS [Bot. Absts., Vol. V, 



1S76. Stern, J. Moste des Jahres 1918 aus den Weinbeugebeiten der Nahe, des Glans, 

 des Rheintales unterhalb des Rheingaues, des Rheingaues, des Rheins, Mains und der Lahn.] 

 [Musts of 1918 of the Rhine Valley, etc.] Zeitschr. Untersuch. Nahrungs-u. Genussmittel 38 : 

 91-93. 1919. 



1877. Tbvis, May. Cutting the cocoanut cake. Soi. Amer. Monthly 1: 404-407. 4 fig. 

 and frontispiece. 1920. — Concerns the cocoanut tree, Cocos nucifera, its growth, products 

 and their preparation. — Chas. H. Otis. 



MORPHOLOGY, ANATOMY AND HISTOLOGY OF VASCULAR 



PLANTS 



E. W. Sinnott, Editor 



1878. Bancroft, Wilder D. [Rev. of: Jaeger, F. M. Lectures on the principles of 

 symmetry. 27x16 cm., jcu-(-333 p. Elzevir Publishing Co.: Amsterdam, 1917.] Jour. 

 Phys. Chem. 23: 516. 1919— See Bot. Absts. 5, Entry 1451. 



1879. Betts, M. Winifred. Notes on the autoecology of certain plants of the Peridotit 

 Belt, Nelson: Part I. Structure of some plants (No. 2). Trans, and Proc. New Zealand Inst 

 51:136-156. 27 fig. 1919. 



1880. Brewster, A. A. Aerating roots or pneumatophores of mangroves (Avicennia). 

 Australian Nat. 4: 136. 1920. — These plants have an aerating system strongly suggesting that 

 of the cypress of the southern United States.— T. G. Frye. 



1881. Brewster, A. A. Germination of choko seed. Australian Nat. 4: 121. 1920. 



1882. Brewster, A. A. Leaf of the grasstree (Xanthorrhoea) . Australian Nat. 4: 135. 

 1920. — Paper deals with the leaf structure of this xerophyte. The most striking features 

 are the abundance of sclerenchyma, and the occurrence of numerous crystals in the cells of 

 the epidermis. — T. C. Frye. 



1883. Buchholz, John T. Embryo development and polyembryony in relation to the phy- 

 logeny of conifers. Amer. Jour. Bot. 7: 125-145. 89 fig. 1920. — The author has here sum- 

 marized all published work on the proembryo and early embryo of conifers, in an endeavor to 

 throw light on the phylogeny of this group by a comparative study of their embryogeny and 

 in particular of the manner in which polyembryony occurs within them. Cleavage polyembry- 

 ony — the separation of the zygote into a number of smaller units which compete with each 

 other — is distinguished from simple polyembryony, which results from the fertilization of 

 several eggs. The phylogenetic values of these two types of polyembryony and of various 

 other embryological characters are discussed, and the affinities suggested by embryogeny among 

 the 22 genera of conifers studied are represented by a diagram. The occurrence of cleavage 

 polyembryony, together with the presence of an apical cell, of rosette embryos and rosette 

 cells, and the direct organization of embryo initials from the free nuclei of the proembryo are 

 regarded as primitive features. On the other hand, a return to simple polyembryony, the 

 presence of a proembryo that fills the entire egg with cells, an archegonial complex and an 

 embryo cap, together with the organization of embryo initials after walls form in the embryo, 

 are regarded as specialized features characteristic of more recent types. — E. W. Sinnott. 



1884. Buscalioni, L., and G. Muscatkllo. Studio anatomo-biologico sul Gen. Sau- 

 rauia Willd. I Anatomical-biological studies on the genus Saurauia.] Malpighia 28: 331-370. 

 PI. 5-10. 1918. — This is the concluding part of a detailed anatomical study, the publication 

 of which was begun in earlier numbers of the journal cited. — L. W. Riddle. 



