No. 2, March, 1<J'21] MORPHOLOGY, ETC., VASC. PLANTS 161 



1068. Ogura, Yudsuru. Some observations on the growth in thickness of trees, especi- 

 ally with regard to that of Cryptomeria japonica. Bot. Mag. Tokyo 34 : 81-109. 1920.— An 

 English abstract of a fuller account in Japanese in the same volume. The author's observa- 

 tions agree in general with those reported by earlier observers except that he did not find 

 any close agreement between precipitation and the thickness of annual rings. — L. L. 

 Burlingame. 



1069. [P., D.] James William Helenus Trail. Proc. Roy. Soc. London B, 91:vii-xl. 

 1920.— Born at Briasy, Orkney, Mar. 4, 1851; died Sept. 18, 1919. Classical and medical 

 education. 1873-75 naturalist South American expedition, displaying exceptional ability. 

 1877 became Professor of Botany at Aberdeen. Linnean Society, sometime editor Scottish 

 Naturalist, later botanical editor Annals Scottish Natural Histortj as well as member various 

 European learned societies, being well known for work on galls. President Botanical Section 

 British Association 1910. Death leaves unfinished Flora of Northeastern Scotland.— Paul 

 B. Sears. 



1070. Patton, R. T. On the growth, treatment and structure of some common hardv/oods. 

 Proc. Roy. Soc. Victoria 31 (N. S.) : 394-411. PI. 21, 7 fig. 1919.— See Bot. Absts. 7, Entry 

 811. 



1071. RivETT, Maud F. The anatomy of Rhododendron ponticum L. and of Ilex aquifo- 

 lixmi L., in reference to specific conductivity. Ann. Botany 34:525-550. 1920.— See Bot. 

 Absts. 7, Entry 1297. 



1072. S., M. James William Helenus Trail, M.A., M.D., F.R.S., F.L.S. New Phytol. 

 19 : 46-48. 1920.— A brief biography of Professor Trail. [See also Bot. Absts. 7, Entry 1069.]— 

 7. F. Lewis. 



1073. Sources, Ren£. Embryogenie des Solanacees. Developpement de I'embryon chez 

 les Nicotiana. [Embryogeny of the Solanaceae. Development of the embryo of Nicotiana.] 

 Compt. Rend. Acad. Sci. Paris 170:1125-1127. 9 fig. 1920.— The proembryo develops as 

 does that of Chenopodium Bonus- Henricus, except that the apical cell of the two-celled stage 

 divides before the basal. The division of both these cells is horizontal. In these respects 

 it differs from Capsella. — C. H. Farr. 



1074. St. John, Harold. A teratological specimen of Aralia hispida. Rhodora 22: 152- 

 153. 1920. — A description of an abnormal specimen of this species collected on Rattlesnake 

 Mountain, Tyrone, Blair Co., Pennsylvania, in which the umbels of the inflorescence seemed 

 from a distance to be crowned by tufts of green leaves instead of the white flowers or dark 

 angular fruits. Closer examination revealed several types of abnormality in the individual 

 flowers. Apparently the condition was not traumatic— James P. Poole. 



1075. Uphof, J. C. Th. Contributions towards a knowledge of the anatomy of the genus 

 Selaginella. The root. Ann. Botany 34: 493-517. 13 fig. 1920.— The greater part of this 

 paper is devoted to a description of the histological details in the root and rhizophore of 

 eighteen species of Selaginella. Each species is taken up individually. The more general 

 results are as follows: There is no important anatomical difference in any species between root 

 and rhizophore, while both differ markedly from the stem, notably in lacking lacunae and 

 trabeculae; both are, moreover, negatively heliotropic. It is therefore concluded that the 

 rhizophores are true roots and not leafless stems, as is commonly believed. The vascular 

 system in both is monarch with well developed xylem; endodermis and pericycle are always 

 present; the elements of the phloem are arranged as in the stem. — W. P. Thompson. 



1076. Uphop, J. C. Th. Physiological anatomy of xerophytic Selaginellas. New Phytol. 

 19:101-131. 12 fig. 1920. 



