No. 2, June, 1921] PATHOLOGY ' 193 



1339. Jennings, O. E. Fossil plants from the beds of volcanic ash near Missoula, western 

 Montana. Mem. Carnegie Mus. 8: 385-450. PL 22-33. 1920.— The author describes collec- 

 tions made in 1902 and 1905 by Earl Douglas from near Missoula and near Winston in 

 western Montana. The latter is small and the material represents new species of Equisetum 

 and Aralia but is believed to be the same age as the larger and better preserved collection 

 from the former locality. This includes 21 species, i.e., Sequoia 2, Thuyopsis, Sabina, Typha, 

 Cyperacites, Populus 2, Juglans, Betnla, Alnus 2, Quercus 3, Ficus ?, Ilex, Celastrus, and 

 Vaccinium. Species of Sequoia, Juglans, Betula, Alnus, Quercus, Ficus ?, Ilex, Oelastrus, 

 and Vaccinium are described as new. — This flora is regarded as of Oligocene age and as exist- 

 ing around a mountain lake. There is an ecological discussion in which the fossil flora is 

 compared with those of recent lakes in the Montana Rockies, and it is concluded that the 

 Oligocene climate in that region was somewhat warmer than now prevails in that region, and 

 that the plant associations represented ranged from wet meadow to moderately xerophytic 

 oak forests on sandy or rocky lake shores. — E. W. Berry. 



1340. Johnston, R. M. Notes on the discovery of a new fossil fruit from the Deep-Lead 

 Tin Drifts at Derby, Tasmania. Papers and Proc. Roy. Soc. Tasmania 1918: 9-10. 1919. — 

 This article reports the discovery of a lignified fossil fruit possibly allied to Plesiocapparis 

 prisca F. von Mueller. It is described by the author as a new species under the name Carpo- 

 lithes {Plesiocapparis) Clarkii. — /. H. Faull. 



1341. PoTONiE, R. Mitteilung iiber mazerierte kohlige Pflanzenfossilien. [Notes on the 

 maceration of carbonized plant fossils.] Zeitschr. Bot. 13: 79-89. 12 fig. 1920. — The author 

 describes and figures vertical sections of the stomata of Thinnfeldia rhomboidalis Schenk 

 from the Lias (lower Jurassic) of Germany, calling attention to their zerophytic character; 

 the technique of maceration and staining of the fossils is discussed. A specimen of Callip- 

 teris conferta (Sternberg) Brongniart is described from the Permian (Rothliegendes) of 

 Thuringia which shows that it had been mined by some insect larva. — E. W. Berry. 



1342. Stopes, Marie Carmichael. The missing link in Osmundites. Ann. Botany 

 35: 55-64. PI. 2, 1 fig. 1921.— A specimen of Osmundites from Queensland, Australia, con- 

 sisting of a piece of rhizome with surrounding leaf bases, was found to have a solid protostele 

 in the stem. All the other features are typical of the genus including the meristeles in the 

 leaf bases. Kidston and Gwynne-Vaughan had concluded that the vascular system of the 

 Osmundaceae must have been derived from just such a protostele though no form possessing 

 one was known to them. The specimen described is regarded as the missing form. The 

 plant is given the name Osmundites Kidstoni. The horizon is probably Cretaceous. — W. P. 

 Thompson. 



1343. Torre Y, R. E. Telephragmoxylon and the origin of wood parenchyma. Ann. 

 Botany 35: 73-78. PI. 3, 3 fig. 1921. — A lignite of Araucarian affinities from the Cretaceous 

 of Texas shows at the end of the annual ring numerous tracheids which are divided into seg- 

 ments. This is considered to be the first stage in the evolution of wood parenchyma from 

 tracheids. The specimens are placed in a new genus Telephragmoxylon. — W . P. Thompson. 



PATHOLOGY 



G. H. Coons, Editor 

 C. W. Bennett, Assistant Editor 



(See also in this issue Entries 775, 776, 806, 1026, 1061, 1077, 1095, 1272, 1273, 1275, 1276, 

 1277, 1279, 1280, 1282, 1293, 1296, 1299, 1301, 1303, 1304, 1311, 1313, 1316, 1328, 1497, 1536) 



PLANT DISEASE SURVEY; REPORTS OF DISEASE OCCURRENCE 



AND SEVERITY 



1344. Dana, B. F., and George L. Zundel. A new com smut in Washington. Phyto- 

 path. 10: 328. 4 fig. 1920. — The writers note occurrence at Pullman, Washington, of a new 



